Your Journey, Our Scientific Commitment
At STRIV Labs, we hold ourselves to a higher standard so you can trust the supplements you choose. Our products are crafted in GMP-certified facilities under strict quality controls and undergo rigorous third-party testing for purity and potency. We source ingredients from trusted suppliers and use clinical dosing based on peer-reviewed research, not marketing trends. Transparency matters - we don’t use vague labels or proprietary blends because you deserve to know exactly what fuels your body.
STRIV is built for those who demand more from life, and that starts with demanding more from your supplements.
Made in the usa
GMP CERTIFIED FACILITY
Third-party lab tested
premium ingredients
The Peak series
Explore what’s in each formula
Ashwagandha
Ashwagandha (Withania somnifera) is an ancient adaptogenic herb from India, prized in Ayurveda for its ability to help the body adapt to stress. Scientific studies show it can lower cortisol levels (the stress hormone), support healthy testosterone production, and bolster mental resilience. By enhancing muscle strength, endurance, and recovery, Ashwagandha empowers you to push harder, stay focused, and recover faster for peak performance.
References:
A systematic review identified ashwagandha among the herbal extracts with evidence supporting increased testosterone levels. – Smith et al., 2021 · Advances in Nutrition, https://pubmed.ncbi.nlm.nih.gov/33150931/
Across randomized trials, ashwagandha supplementation was associated with reductions in perceived stress, anxiety and cortisol. – Arumugam et al., 2024 · Explore, https://pubmed.ncbi.nlm.nih.gov/39348746/
Research suggests that ashwagandha supplementation may support strength, power and other measures of physical performance. – Bonilla et al., 2021 · J. Functional Morphology & Kinesiology, https://pubmed.ncbi.nlm.nih.gov/33670194/
Ashwagandha supplementation was shown to reduce perceived stress and cortisol levels compared with placebo. – Chandrasekhar et al., 2012 · Indian J. Psychological Medicine, https://pubmed.ncbi.nlm.nih.gov/23439798/
A clinical trial found that ashwagandha improved measures of sexual well-being while also increasing testosterone levels. – Chauhan et al., 2022 · Health Science Reports, https://pubmed.ncbi.nlm.nih.gov/35873404/
Ashwagandha supplementation was shown to improve measures of stress and anxiety while reducing cortisol levels. – Majeed et al., 2023 · Medicine, https://pubmed.ncbi.nlm.nih.gov/37832082/
Ashwagandha was shown to improve several measures of sleep quality and anxiety compared with placebo. – Langade et al., 2019 · Cureus, https://pubmed.ncbi.nlm.nih.gov/31728244/
At 400 mg daily—the amount in this serving—ashwagandha did not significantly improve the primary stress outcome, although fatigue and free testosterone improved as secondary outcomes. – Smith et al., 2023 · J. Psychopharmacology, https://pubmed.ncbi.nlm.nih.gov/37740662/
Clinical research found that ashwagandha supplementation increased testosterone and improved measures of sperm count and reproductive function. – Ambiye et al., 2013 · Evidence-Based Complement. & Alt. Medicine, https://pubmed.ncbi.nlm.nih.gov/24371462/
Ashwagandha supplementation was shown to improve semen parameters and measures of reproductive-hormone balance. – Gupta et al., 2013 · J. Ethnopharmacology, https://pubmed.ncbi.nlm.nih.gov/23796876/
Research found that ashwagandha improved sperm count and motility while also increasing testosterone and luteinizing hormone. – Ahmad et al., 2010 · Fertility & Sterility, https://pubmed.ncbi.nlm.nih.gov/19501822/
In a randomized trial, an ashwagandha extract produced a greater treatment response for anxiety than placebo. – Andrade et al., 2000 · Indian J. Psychiatry, https://pubmed.ncbi.nlm.nih.gov/21407960/
Black Maca Root
Black Maca (Lepidium meyenii) is a nutrient-dense root grown in the high Andes, traditionally used to support stamina and endurance. Emerging research suggests it may enhance male reproductive health—potentially boosting sperm production and sexual desire—while also offering cognitive and mood benefits. By helping maintain healthy hormone balance, Black Maca serves as a powerful adaptogen, promoting energy and vitality throughout your day.
References:
Maca extract was shown to improve several measures of mood, energy and quality of life. – Gonzales-Arimborgo et al., 2016 · Pharmaceuticals, https://pubmed.ncbi.nlm.nih.gov/27548190/
Maca supplementation was shown to increase sexual desire without significantly changing testosterone. – Gonzales et al., 2002 · Andrologia, https://pubmed.ncbi.nlm.nih.gov/12472620/
In men with low-testosterone symptoms, maca improved symptom and erectile scores, at a higher dose. – Shin et al., 2023 · World J. Men's Health, https://pubmed.ncbi.nlm.nih.gov/36593713/
Black maca was shown to improve several measures of physical fitness while reducing some inflammatory markers. – Lee et al., 2023 · Nutrients, https://pubmed.ncbi.nlm.nih.gov/37049458/
Maca supplementation showed a trend toward improved semen parameters, while reproductive hormone levels remained unchanged. – Melnikovova et al., 2015 · Evidence-Based Complement. & Alt. Medicine, https://pubmed.ncbi.nlm.nih.gov/26421049/
A small pilot study found that higher-dose maca improved some measures of sexual dysfunction and libido associated with SSRI use. – Dording et al., 2008 · CNS Neuroscience & Therapeutics, https://pubmed.ncbi.nlm.nih.gov/18801111/
Human research suggests that maca may support energy, mood and sexual desire without altering reproductive hormone levels. – Gonzales et al., 2009 · Forschende Komplementarmedizin, https://pubmed.ncbi.nlm.nih.gov/20090350/
Boron
Boron is a powerhouse trace mineral naturally present in many nutrient-rich foods, that supports hormonal balance by helping to boost free testosterone and reduce estrogen. Some studies suggest that even modest supplementation can improve the bioavailability of testosterone by lowering SHBG, potentially enhancing strength, energy, and overall vitality. Additionally, boron is vital for maintaining bone density, joint health, and may even contribute to sharper cognitive function—making it a key nutrient for total male optimization.
References:
One week of daily boron supplementation was shown to increase free testosterone while reducing estradiol in a small clinical study. – Naghii et al., 2011 · J. Trace Elements in Medicine & Biology, https://pubmed.ncbi.nlm.nih.gov/21129941/
Research suggests that boron supports bone health and how the body handles testosterone, estrogen and vitamin D. – Pizzorno, 2015 · Integrative Medicine, https://pubmed.ncbi.nlm.nih.gov/26770156/
Fenugreek
Fenugreek (Trigonella foenum-graecum) is a fragrant herb from the Middle East and South Asia, treasured in traditional medicine for its wide-ranging benefits. Research suggests it may restore vitality and energy by helping you maintain natural hormonal balance, particularly healthy testosterone levels. This can translate into feeling stronger, more driven, and primed to conquer your daily goals.
References:
A standardized fenugreek formula was shown to improve measures of libido, energy and perceived strength while testosterone remained within a healthy range. – Steels et al., 2011 · Phytotherapy Research, https://pubmed.ncbi.nlm.nih.gov/21312304/
A systematic review identified fenugreek as one of the herbal ingredients with the strongest evidence for supporting healthy testosterone levels. – Skrzypiec-Spring et al., 2025 · Adv. Clinical & Experimental Medicine, https://pubmed.ncbi.nlm.nih.gov/38628109/
Horny Goat Weed
Horny Goat Weed (Epimedium) is an ancient herb with a playful name but a serious legacy of supporting stamina and libido. Preliminary studies suggest that its primary active compound, icariin, may help maintain healthy circulation and offer protective benefits for male vitality. While more large-scale research is needed, many have turned to Horny Goat Weed for an extra boost in energy and confidence, helping them feel more vibrant and ready to take on life’s demands.
References:
Human research on Epimedium has demonstrated potential benefits for bone health, while direct clinical evidence for male performance remains limited. – Shi et al., 2022 · Frontiers in Pharmacology, https://pubmed.ncbi.nlm.nih.gov/35431937/
L-Citrulline Malate
L-Citrulline Malate is a potent combination of the amino acid L-citrulline and malic acid, renowned for boosting nitric oxide production and supporting healthy blood flow. This improved circulation can help elevate endurance, reduce muscle fatigue, and enhance overall vitality. By promoting optimal oxygen and nutrient delivery to your muscles, L-citrulline malate helps you power through workouts and recover more efficiently.
References:
Longer-term L-citrulline supplementation was shown to improve blood vessel function. – Smeets et al., 2022 · British J. Nutrition, https://pubmed.ncbi.nlm.nih.gov/34863321/
Across resistance-training studies, citrulline malate before exercise produced modest improvements in repetitions to failure. – Vårvik et al., 2021 · Int. J. Sport Nutrition, https://pubmed.ncbi.nlm.nih.gov/34010809/
Research shows that citrulline reliably raises circulating arginine, although its effects on exercise blood flow and performance remain inconsistent. – Gonzalez et al., 2020 · J. Strength & Conditioning Research, https://pubmed.ncbi.nlm.nih.gov/31977835/
A single dose of citrulline malate was shown to increase bench-press repetitions and reduce reported muscle soreness following training. – Pérez-Guisado et al., 2010 · J. Strength & Conditioning Research, https://pubmed.ncbi.nlm.nih.gov/20386132/
Daily L-citrulline supplementation was shown to improve erection hardness. – Cormio et al., 2011 · Urology, https://pubmed.ncbi.nlm.nih.gov/21195829/
Research on citrulline malate and exercise performance remains mixed, with results appearing to depend on dose, timing and training protocol. – Gough et al., 2021 · European J. Applied Physiology, https://pubmed.ncbi.nlm.nih.gov/34417881/
L-citrulline combined with resveratrol was shown to improve a measure of sexual function, although the effect cannot be attributed to citrulline alone. – Shirai et al., 2018 · Sexual Medicine, https://pubmed.ncbi.nlm.nih.gov/30150102/
Red Korean Ginseng
Red Korean Ginseng (Panax ginseng) is a revered root grown in the mountainous regions of Korea, prized for its energizing and revitalizing qualities. Research suggests it may help sharpen cognitive function while supporting overall vitality and resilience. By promoting balanced energy and a focused mind, Red Korean Ginseng helps keep you ready to tackle life’s daily demands.
References:
A meta-analysis found that Korean red ginseng may support erectile function, although the available clinical trials were relatively small. – Jang et al., 2008 · British J. Clinical Pharmacology, https://pubmed.ncbi.nlm.nih.gov/18754850/
Ginseng supplementation was associated with modest improvements in memory, although no clear benefits were found for attention or overall cognitive performance. – Zeng et al., 2024 · Phytotherapy Research, https://pubmed.ncbi.nlm.nih.gov/39474788/
Research suggests that Korean red ginseng may offer support for male sexual and reproductive function. – Wang et al., 2023 · Basic & Clinical Andrology, https://pubmed.ncbi.nlm.nih.gov/37880595/
Preclinical research suggests that ginseng compounds can support brain-cell health. – Chen et al., 2022 · Phytomedicine, https://pubmed.ncbi.nlm.nih.gov/34952508/
Tongkat Ali
Tongkat Ali (Eurycoma longifolia)—often called Longjack—is a treasured root from Southeast Asia’s rainforests, celebrated for promoting masculine energy and vitality. Research suggests it may support healthy testosterone levels by influencing SHBG (Sex Hormone-Binding Globulin), which can help optimize strength, endurance, and sexual performance. Some findings also indicate it may reduce stress and improve mood, making Tongkat Ali a versatile ally for those seeking peak physical performance and overall well-being.
References:
A meta-analysis found that Tongkat Ali supplementation can increase total testosterone, with the strongest effects seen when starting levels are lower. – Leisegang et al., 2022 · Medicina, https://pubmed.ncbi.nlm.nih.gov/36013514/
Tongkat Ali supplementation was shown to increase both total and free testosterone after two weeks. – Chan et al., 2021 · Andrologia, https://pubmed.ncbi.nlm.nih.gov/33559971/
Tongkat Ali was shown to reduce cortisol, increase testosterone and improve some measures of mood. – Talbott et al., 2013 · J. Int. Society of Sports Nutrition, https://pubmed.ncbi.nlm.nih.gov/23705671/
Over six months, Tongkat Ali improved testosterone and erectile-function measures, with stronger effects when supplementation was combined with exercise. – Leitão et al., 2021 · Maturitas, https://pubmed.ncbi.nlm.nih.gov/33541567/
Tongkat Ali supplementation was shown to increase testosterone levels within one month. – Tambi et al., 2012 · Andrologia, https://pubmed.ncbi.nlm.nih.gov/21671978/
Tribulus Terrestris
Tribulus terrestris is an annual plant from the caltrop family (Zygophyllaceae), widely distributed around the world and known for thriving in dry climates. Preliminary research suggests it may help support healthy testosterone levels, which could contribute to muscle strength and physical performance. By enhancing stamina and drive, Tribulus terrestris can help you stay energized and ready to take on your fitness goals.
References:
Tribulus terrestris was shown to improve measures of sexual function while producing a modest increase in testosterone. – GamalEl Din et al., 2019 · Urologia, https://pubmed.ncbi.nlm.nih.gov/30253697/
Clinical research found that Tribulus terrestris improved sexual-function scores while increasing total and free testosterone. – Roaiah et al., 2016 · J. Sex & Marital Therapy, https://pubmed.ncbi.nlm.nih.gov/25849625/
Tribulus terrestris was associated with improvements in some measures of training performance, while hormones and body composition remained largely unchanged. – Fernández-Lázaro et al., 2021 · Nutrients, https://pubmed.ncbi.nlm.nih.gov/34836225/
Vitamin B6
Vitamin B6 is found in some of nature's most nourishing foods and plays a key role in converting nutrients into energy. By aiding neurotransmitter production, it helps maintain emotional balance so you can stay calm, focused, and ready to take on life’s challenges.
References:
Adequate B6 helps reduce tiredness and supports normal thinking and focus. – Tardy et al., 2020 · Nutrients, https://pubmed.ncbi.nlm.nih.gov/31963141/
B6 is a helper in over 150 reactions that turn food into usable energy. – Stach et al., 2021 · Nutrients, https://pubmed.ncbi.nlm.nih.gov/34579110/
Research highlights the important role of vitamin B6 in supporting normal immune function, particularly when dietary intake is inadequate. – Ueland et al., 2017 · Molecular Aspects of Medicine, https://pubmed.ncbi.nlm.nih.gov/27593095/
Vitamin D3
Vitamin D3 is famously called the “sunshine vitamin” because your body naturally produces it when exposed to sunlight. Beyond its well-known role in supporting bone health and immune function, Vitamin D3 has also been linked to better mood and mental clarity. By ensuring you get enough of this crucial nutrient, you help keep your body energized and balanced for everyday challenges.
References:
Eight weeks of vitamin D supplementation was shown to improve measures of mood in a randomized clinical trial. – Kaviani et al., 2020 · J. Affective Disorders, https://pubmed.ncbi.nlm.nih.gov/32217340/
Vitamin D works through the vitamin D receptor to regulate biological processes involved in immune function, bone health and normal cellular function. – Carlberg et al., 2023 · Redox Biology, https://pubmed.ncbi.nlm.nih.gov/37043983/
Research has found an association between lower vitamin D status and poorer mood, – Akpınar et al., 2022 · Current Nutrition Reports, https://pubmed.ncbi.nlm.nih.gov/36097104/
Zinc
Zinc is an essential mineral that forms the backbone of your immune health and overall vitality. It's a key player in the body’s enzyme systems that support testosterone production, which means getting enough zinc can help you maintain strength, recover faster, and keep your hormones in check. By fueling your body’s natural defenses and supporting optimal hormone balance, zinc helps you stay strong and resilient. Whether you're pushing your limits in the gym or warding off daily stresses, zinc can be a trusted ally for overall health.
References:
Research suggests that zinc status is closely associated with testosterone levels, with supplementation appearing most beneficial when zinc status is low. – Te et al., 2023 · J. Trace Elements in Medicine & Biology, https://pubmed.ncbi.nlm.nih.gov/36577241/
Clinical research found that restoring inadequate zinc intake was associated with a significant increase in testosterone levels. – Prasad et al., 1996 · Nutrition, https://pubmed.ncbi.nlm.nih.gov/8875519/
In a human crossover trial, zinc picolinate—the form used here—produced greater improvements in zinc status than zinc citrate or zinc gluconate. – Barrie et al., 1987 · Agents and Actions, https://pubmed.ncbi.nlm.nih.gov/3630857/
Zinc supplementation was shown to help maintain testosterone levels that otherwise declined following exhaustive exercise. – Kilic, 2007 · Neuroendocrinology Letters, https://pubmed.ncbi.nlm.nih.gov/17984944/
Zinc plays an important role in the development, signaling and normal function of cells throughout the immune system. – Maares et al., 2016 · Archives of Biochemistry & Biophysics, https://pubmed.ncbi.nlm.nih.gov/27021581/
Alpha Lipoic Acid
Alpha Lipoic Acid (ALA) is a versatile antioxidant that stands out for its unique ability to function in both water- and fat-soluble environments throughout the body. Research highlights its role in supporting metabolic efficiency and protecting cells from oxidative damage, which can accumulate over time. By helping your body's cellular machinery run cleaner and more efficiently, ALA contributes to long-term vitality, healthy aging, and the sustained energy that keeps you performing at your peak.
References:
Alpha-lipoic acid acts as an antioxidant and can help regenerate other important antioxidants, including vitamins C and E. – Packer et al., 1995 · Free Radical Biology & Medicine, https://pubmed.ncbi.nlm.nih.gov/7649494/
Research found that alpha-lipoic acid combined with CoQ10 can support antioxidant status and processes involved in mitochondrial function. – Silvestri et al., 2015 · J. Clinical Biochemistry & Nutrition, https://pubmed.ncbi.nlm.nih.gov/26236096/
Coenzyme Q10
Coenzyme Q10 is a naturally occurring compound found in every cell of your body, with the highest concentrations in the heart and muscles where energy demands are greatest. Often called the "spark plug" of cellular energy production, CoQ10 plays a vital role in powering your cardiovascular system and sustaining endurance. By supporting your body's ability to generate energy at the cellular level, CoQ10 helps keep your heart strong and your performance consistent—whether you're training hard or navigating a demanding day.
References:
A clinical trial found that 100 mg of CoQ10 daily—the amount in this serving—helped reduce feelings of fatigue and daytime sleepiness. – Mizuno et al., 2020 · Nutrients, https://pubmed.ncbi.nlm.nih.gov/32498248/
Research suggests that CoQ10 may offer cardiovascular benefits, although reviewers concluded that the overall evidence remains mixed. – Al Saadi et al., 2021 · Cochrane Database of Systematic Reviews, https://pubmed.ncbi.nlm.nih.gov/35608922/
A systematic review found that CoQ10 supplementation was linked to better muscle comfort and recovery. – Ahmad et al., 2024 · Cureus, https://pubmed.ncbi.nlm.nih.gov/39350827/
CoQ10 plays an important role in cellular energy production while also providing antioxidant protection against oxidative stress. – Testai et al., 2021 · Nutrients, https://pubmed.ncbi.nlm.nih.gov/34067632/
Research highlights CoQ10's central role in mitochondrial energy production and in protecting cells against oxidative stress. – Hernández-Camacho et al., 2018 · Frontiers in Physiology, https://pubmed.ncbi.nlm.nih.gov/29459830/
Grapeseed Extract
Grapeseed Extract is a potent botanical derived from the seeds of wine grapes, packed with powerful polyphenols and proanthocyanidins that support long-term vascular health. Research suggests these antioxidants may help protect blood vessel integrity and promote healthy circulation over time. By defending against oxidative stress and supporting flexible, resilient blood vessels, Grapeseed Extract is a quiet powerhouse for cardiovascular wellness and sustained vitality.
References:
Grape seed extract was shown to modestly reducediastolic blood pressure and heart rate, with no change in the top number. – Foshati et al., 2022 · Pharmacological Research, https://pubmed.ncbi.nlm.nih.gov/34798267/
Grape seed extract is rich in polyphenols that have been studied for their antioxidant properties and potential support of healthy blood vessel function. – Gupta et al., 2020 · J. Food Science & Technology, https://pubmed.ncbi.nlm.nih.gov/32180617/
L-Arginine HCL
L-Arginine is a foundational amino acid that serves as a direct precursor to nitric oxide—one of the body's most important molecules for vascular health. Research suggests it supports blood vessel responsiveness and healthy circulation, particularly during periods of physical demand. By helping your body maintain optimal blood flow, L-Arginine HCl ensures your muscles and organs get the fuel they need to perform when it matters most.
References:
L-arginine serves as a direct precursor to nitric oxide, an important signaling molecule involved in healthy blood vessel function and vascular tone. – Gambardella et al., 2020 · Biomedicines, https://pubmed.ncbi.nlm.nih.gov/32781796/
Research suggests that L-citrulline may raise arginine and nitric oxide availability more effectively than supplementation with L-arginine alone. – Park et al., 2023 · Nutrients, https://pubmed.ncbi.nlm.nih.gov/36904267/
L-Citrulline
L-Citrulline is a naturally occurring amino acid found in watermelon and other nutrient-rich foods, renowned for its role in supporting the body's nitric oxide pathways. By promoting healthy blood flow and circulation, L-Citrulline helps ensure optimal oxygen and nutrient delivery throughout your body. This enhanced vascular performance can translate into greater physical readiness, improved endurance, and the sustained energy you need to show up at your best every day.
References:
Longer-term L-citrulline supplementation was shown to improve blood vessel function. – Smeets et al., 2022 · British J. Nutrition, https://pubmed.ncbi.nlm.nih.gov/34863321/
Research suggests that L-citrulline can support nitric oxide production more effectively than L-arginine, with potential benefits for healthy blood pressure. – Allerton et al., 2018 · Nutrients, https://pubmed.ncbi.nlm.nih.gov/30029482/
Research shows that L-citrulline efficiently raises circulating arginine, supporting the body's production of nitric oxide and healthy blood vessel function. – Gonzalez et al., 2023 · Nutrients, https://pubmed.ncbi.nlm.nih.gov/36771366/
L-citrulline was shown to modestly increase muscle blood flow during exercise. – Gonzales et al., 2017 · Experimental Physiology, https://pubmed.ncbi.nlm.nih.gov/28940638/
Taken daily rather than as a one-off, L-citrulline may raise nitric oxide and ease blood pressure that runs high. – Figueroa et al., 2017 · Curr. Opinion Clin. Nutrition & Metabolic Care, https://pubmed.ncbi.nlm.nih.gov/27749691/
Pine Bark Extract
Pine Bark Extract is a time-tested botanical sourced from the bark of maritime pine trees, traditionally valued for its impressive antioxidant profile. Preliminary research suggests it may support healthy circulation by promoting the body's natural nitric oxide response and protecting blood vessel function. By enhancing vascular wellness and supporting blood flow during activity, Pine Bark Extract helps you maintain the circulatory performance that fuels an active, demanding lifestyle.
References:
Across randomized trials, pine bark extract was associated with modest reductions in both systolic and diastolic blood pressure. – Mohammadi et al., 2025 · BMC Complement. Med. Ther., https://pubmed.ncbi.nlm.nih.gov/39987124/
Pine bark extract was shown to lower blood pressure over 12 weeks, although the improvement was not significantly greater than placebo. – Ferguson et al., 2022 · Complementary Therapies in Medicine, https://pubmed.ncbi.nlm.nih.gov/36280012/
Turmeric Rhizome Extract
Turmeric Extract is derived from the golden root of the Curcuma longa plant, celebrated for centuries in traditional medicine across South and Southeast Asia. Its primary active compound, curcumin, has been extensively studied for its ability to support a healthy inflammatory response and promote cardiovascular resilience. By helping your body manage the natural stresses of an active lifestyle, Turmeric Extract keeps you recovered, balanced, and ready to push forward.
References:
Across clinical trials, turmeric and curcumin supplementation was shown to reduce several inflammatory markers and improve measures of antioxidant status. – Dehzad et al., 2023 · Cytokine, https://pubmed.ncbi.nlm.nih.gov/36804260/
Research suggests that curcumin, turmeric's main polyphenol, can support antioxidant defenses and help manage exercise-related recovery and muscle soreness. – Hewlings et al., 2017 · Foods, https://pubmed.ncbi.nlm.nih.gov/29065496/
Vitamin B12
Vitamin B12 is a vital nutrient that plays a central role in your body's energy metabolism, helping convert the food you eat into usable fuel. It also supports healthy nervous system function and red blood cell production, which are essential for delivering oxygen throughout your body. By ensuring your energy pathways are firing efficiently, Vitamin B12 helps you maintain the daily vitality, mental clarity, and drive you need to stay on top of your game.
References:
Vitamin B12 plays an essential role in energy metabolism while supporting the normal function of the nervous system and red blood cells. – Rizzo et al., 2016 · Nutrients, https://pubmed.ncbi.nlm.nih.gov/27916823/
Vitamin C
Vitamin C is one of nature's most essential antioxidants, found abundantly in citrus fruits and leafy greens. Beyond its well-known role in immune defense, Vitamin C plays a critical part in collagen synthesis—the structural protein that helps maintain strong, flexible blood vessels. By supporting cellular function and vascular integrity, Vitamin C helps fortify your cardiovascular system from the inside out, keeping you resilient and ready for whatever comes your way.
References:
Research found that vitamin C can support healthy blood flow by helping blood vessels relax and dilate more effectively. – Taddei et al., 1998 · Circulation, https://pubmed.ncbi.nlm.nih.gov/9631871/
When paired with dietary nitrate, vitamin C was shown to enhance nitric oxide availability and support healthy blood vessel function. – Basaqr et al., 2021 · Clinical Nutrition, https://pubmed.ncbi.nlm.nih.gov/33115598/
Ashwagandha
Ashwagandha (Withania somnifera) is an ancient adaptogenic herb from India, prized in Ayurveda for its ability to help the body adapt to stress. Scientific studies show it can lower cortisol levels (the stress hormone), support healthy testosterone production, and bolster mental resilience. By enhancing muscle strength, endurance, and recovery, Ashwagandha empowers you to push harder, stay focused, and recover faster for peak performance.
References:
A systematic review identified ashwagandha among the herbal extracts with evidence supporting increased testosterone levels. – Smith et al., 2021 · Advances in Nutrition, https://pubmed.ncbi.nlm.nih.gov/33150931/
Across randomized trials, ashwagandha supplementation was associated with reductions in perceived stress, anxiety and cortisol. – Arumugam et al., 2024 · Explore, https://pubmed.ncbi.nlm.nih.gov/39348746/
Research suggests that ashwagandha supplementation may support strength, power and other measures of physical performance. – Bonilla et al., 2021 · J. Functional Morphology & Kinesiology, https://pubmed.ncbi.nlm.nih.gov/33670194/
Ashwagandha supplementation was shown to reduce perceived stress and cortisol levels compared with placebo. – Chandrasekhar et al., 2012 · Indian J. Psychological Medicine, https://pubmed.ncbi.nlm.nih.gov/23439798/
A clinical trial found that ashwagandha improved measures of sexual well-being while also increasing testosterone levels. – Chauhan et al., 2022 · Health Science Reports, https://pubmed.ncbi.nlm.nih.gov/35873404/
Ashwagandha supplementation was shown to improve measures of stress and anxiety while reducing cortisol levels. – Majeed et al., 2023 · Medicine, https://pubmed.ncbi.nlm.nih.gov/37832082/
Ashwagandha was shown to improve several measures of sleep quality and anxiety compared with placebo. – Langade et al., 2019 · Cureus, https://pubmed.ncbi.nlm.nih.gov/31728244/
Ashwagandha did not significantly improve the primary stress outcome, although fatigue and free testosterone improved as secondary outcomes. – Smith et al., 2023 · J. Psychopharmacology, https://pubmed.ncbi.nlm.nih.gov/37740662/
Clinical research found that ashwagandha supplementation increased testosterone and improved measures of sperm count and reproductive function. – Ambiye et al., 2013 · Evidence-Based Complement. & Alt. Medicine, https://pubmed.ncbi.nlm.nih.gov/24371462/
Ashwagandha supplementation was shown to improve semen parameters and measures of reproductive-hormone balance. – Gupta et al., 2013 · J. Ethnopharmacology, https://pubmed.ncbi.nlm.nih.gov/23796876/
Research found that ashwagandha improved sperm count and motility while also increasing testosterone and luteinizing hormone. – Ahmad et al., 2010 · Fertility & Sterility, https://pubmed.ncbi.nlm.nih.gov/19501822/
In a randomized trial, an ashwagandha extract produced a greater treatment response for anxiety than placebo. – Andrade et al., 2000 · Indian J. Psychiatry, https://pubmed.ncbi.nlm.nih.gov/21407960/
Boron
Boron is a powerhouse trace mineral naturally present in many nutrient-rich foods, that supports hormonal balance by helping to boost free testosterone and reduce estrogen. Some studies suggest that even modest supplementation can improve the bioavailability of testosterone by lowering SHBG, potentially enhancing strength, energy, and overall vitality. Additionally, boron is vital for maintaining bone density, joint health, and may even contribute to sharper cognitive function—making it a key nutrient for total male optimization.
References:
One week of daily boron supplementation was shown to increase free testosterone while reducing estradiol in a small clinical study. – Naghii et al., 2011 · J. Trace Elements in Medicine & Biology, https://pubmed.ncbi.nlm.nih.gov/21129941/
Research suggests that boron supports bone health and how the body handles testosterone, estrogen and vitamin D. – Pizzorno, 2015 · Integrative Medicine, https://pubmed.ncbi.nlm.nih.gov/26770156/
Diindolylmethane (DIM)
DIM (diindolylmethane) is a compound your body forms from broccoli, cabbage and other cruciferous vegetables. It is studied for its role in how the body processes estrogen, one part of overall hormone balance. Peak Vitality includes 75 mg to round out its hormone-support formula.
References:
DIM supplementation was shown to shift estrogen metabolism while testosterone levels remained unchanged. – Gee et al., 2016 · European journal of cancer prevention : the official journal of the European Cancer Prevention Organisation (ECP), https://pubmed.ncbi.nlm.nih.gov/26313229/
Nettle Root
Nettle Root comes from the stinging nettle plant, a European herbal staple long used to support men's health as they age. Research suggests its root extract may help support urinary comfort in men, while lab studies show its compounds interact with SHBG, the protein that holds testosterone in its bound form. A classic of men's herbalism, Nettle Root rounds out Peak Vitality's approach to healthy hormone balance.
References:
Long-term nettle root supplementation potentially improved urinary symptom scores in men. – Schneider et al., 2004 · Der Urologe. Ausg. A, https://pubmed.ncbi.nlm.nih.gov/15045190/
Nettle root extract was shown to improve urinary symptom scores and antioxidant markers in men. – Akbar Karami et al., 2020 · Pakistan journal of biological sciences : PJBS, https://pubmed.ncbi.nlm.nih.gov/32981268/
A review found that nettle root may help support urinary comfort and function in men. – Chrubasik et al., 2007 · Phytomedicine, https://pubmed.ncbi.nlm.nih.gov/17509841/
Preclinical research found that nettle root extract can block SHBG from binding its receptor in prostate tissue. – Hryb et al., 1995 · Planta medica, https://pubmed.ncbi.nlm.nih.gov/7700987/
Lab tests found that naturally occurring compounds in nettle root can bind to SHBG, the protein that holds testosterone in its bound form. – Schöttner et al., 1997 · Planta medica, https://pubmed.ncbi.nlm.nih.gov/9434605/
Selenium
Selenium is a trace mineral your body builds into powerful antioxidant proteins that guard your cells, including the ones behind male fertility. Research suggests that keeping selenium at healthy levels may help support normal sperm health and motility, especially in men who run low. Delivered as well-absorbed L-selenomethionine, Selenium quietly protects the systems that keep you performing.
References:
A meta-analysis found that antioxidant supplementation including selenium produced modest improvements in sperm count and motility. – Sharma et al., 2022 · Urology, https://pubmed.ncbi.nlm.nih.gov/34871624/
In some participants, selenium supplementation was shown to improve sperm motility. – Scott et al., 1998 · British journal of urology, https://pubmed.ncbi.nlm.nih.gov/9698665/
Selenium improved sperm motility and antioxidant capacity. – Alahmar et al., 2021 · Biol. Trace Elem. Research, https://pubmed.ncbi.nlm.nih.gov/32572802/
Six months of selenium raised sperm count and motility and cut sperm DNA damage. – Alahmar, 2023 · Biol. Trace Elem. Research, https://pubmed.ncbi.nlm.nih.gov/36959435/
Research highlights selenium's role in antioxidant proteins that protect sperm function, with clinical evidence suggesting benefits for sperm motility. – Zečević et al., 2025 · Frontiers in nutrition, https://pubmed.ncbi.nlm.nih.gov/41586246/
Shilajit
Shilajit is the prized mineral resin that seeps from high Himalayan rock, revered in Ayurveda as a rejuvenator for strength and vitality. Research suggests a purified extract may help support healthy testosterone in men, help muscles hold their strength under fatigue and back the recovery that keeps you training. Standardized to 20% fulvic acid, Shilajit brings ancient mountain power to your daily routine.
References:
In healthy men aged 45 to 55, 90 days of purified shilajit raised total and free testosterone. – Pandit et al., 2016 · Andrologia, https://pubmed.ncbi.nlm.nih.gov/26395129/
Shilajit supplementation helped preserve muscular strength following fatiguing exercise. – Keller et al., 2019 · J. Int. Society of Sports Nutrition, https://pubmed.ncbi.nlm.nih.gov/30728074/
In men with low sperm counts, shilajit raised sperm count and testosterone levels over 90 days. – Biswas et al., 2010 · Andrologia, https://pubmed.ncbi.nlm.nih.gov/20078516/
Eight weeks of shilajit raised a blood marker of collagen building in resistance-trained men. – Neltner et al., 2024 · Journal of dietary supplements, https://pubmed.ncbi.nlm.nih.gov/36546868/
Shilajit influenced the activity of muscle genes associated with tissue repair and elasticity. – Das et al., 2016 · Journal of medicinal food, https://pubmed.ncbi.nlm.nih.gov/27414521/
A 28-day pilot study found that shilajit was associated with improvements in strength, endurance and perceived fatigue. – Yadav et al., 2026 · Cureus, https://pubmed.ncbi.nlm.nih.gov/41613504/
A review found that shilajit shows potential for supporting energy, physical performance and sperm health. – Stohs, 2014 · Phytotherapy Research, https://pubmed.ncbi.nlm.nih.gov/23733436/
Tongkat Ali
Tongkat Ali (Eurycoma longifolia)—often called Longjack—is a treasured root from Southeast Asia’s rainforests, celebrated for promoting masculine energy and vitality. Research suggests it may support healthy testosterone levels by influencing SHBG (Sex Hormone-Binding Globulin), which can help optimize strength, endurance, and sexual performance. Some findings also indicate it may reduce stress and improve mood, making Tongkat Ali a versatile ally for those seeking peak physical performance and overall well-being.
References:
A meta-analysis found that Tongkat Ali supplementation can increase total testosterone, with the strongest effects seen when starting levels are lower. – Leisegang et al., 2022 · Medicina, https://pubmed.ncbi.nlm.nih.gov/36013514/
Tongkat Ali supplementation was shown to increase both total and free testosterone after two weeks. – Chan et al., 2021 · Andrologia, https://pubmed.ncbi.nlm.nih.gov/33559971/
Tongkat Ali was shown to reduce cortisol, increase testosterone and improve some measures of mood. – Talbott et al., 2013 · J. Int. Society of Sports Nutrition, https://pubmed.ncbi.nlm.nih.gov/23705671/
Over six months, Tongkat Ali improved testosterone and erectile-function measures, with stronger effects when supplementation was combined with exercise. – Leitão et al., 2021 · Maturitas, https://pubmed.ncbi.nlm.nih.gov/33541567/
Tongkat Ali supplementation was shown to increase testosterone levels within one month. – Tambi et al., 2012 · Andrologia, https://pubmed.ncbi.nlm.nih.gov/21671978/
Vitamin D3
Vitamin D3 is famously called the “sunshine vitamin” because your body naturally produces it when exposed to sunlight. Beyond its well-known role in supporting bone health and immune function, Vitamin D3 has also been linked to better mood and mental clarity. By ensuring you get enough of this crucial nutrient, you help keep your body energized and balanced for everyday challenges.
References:
Eight weeks of vitamin D supplementation was shown to improve measures of mood in a randomized clinical trial. – Kaviani et al., 2020 · J. Affective Disorders, https://pubmed.ncbi.nlm.nih.gov/32217340/
Vitamin D works through the vitamin D receptor to regulate biological processes involved in immune function, bone health and normal cellular function. – Carlberg et al., 2023 · Redox Biology, https://pubmed.ncbi.nlm.nih.gov/37043983/
Research has found an association between lower vitamin D status and poorer mood, – Akpınar et al., 2022 · Current Nutrition Reports, https://pubmed.ncbi.nlm.nih.gov/36097104/
Vitamin K2
Vitamin K2 is the partner nutrient that helps put calcium where it belongs, in your bones and out of your arteries. Research suggests the long-lasting MK-7 form may help activate the proteins that build strong bones and keep blood vessels flexible. Paired with a full dose of Vitamin D3, K2 helps round out a foundation built to last.
References:
Low-dose MK-7 supplementation improved activation of vitamin K proteins involved in bone and blood vessel health. – Theuwissen et al., 2012 · British J. Nutrition, https://pubmed.ncbi.nlm.nih.gov/22289649/
Long-term MK-7 supplementation was shown to slow age-related loss of bone density and strength. – Knapen et al., 2013 · Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA, https://pubmed.ncbi.nlm.nih.gov/23525894/
Three years of MK-7 supplementation improved measures of arterial stiffness, with the clearest benefit in those with stiffer arteries. – Knapen et al., 2015 · Thrombosis and haemostasis, https://pubmed.ncbi.nlm.nih.gov/25694037/
Across randomized trials, vitamin K2 supplementation was associated with improvements in spinal bone density and a lower incidence of fractures. – Ma et al., 2022 · Frontiers in public health, https://pubmed.ncbi.nlm.nih.gov/36033779/
MK-7 supplementation improved activation of osteocalcin, a vitamin K dependent protein involved in bone health. – Inaba et al., 2015 · Journal of nutritional science and vitaminology, https://pubmed.ncbi.nlm.nih.gov/26875489/
A clinical study found that one month of MK-7 supplementation at nutritional doses did not adversely affect normal blood-clotting activity. – Ren et al., 2021 · Medicine, https://pubmed.ncbi.nlm.nih.gov/34115006/
A review highlights vitamin K2 may support bone, blood vessels and cell energy. – Yan et al., 2023 · Food science & nutrition, https://pubmed.ncbi.nlm.nih.gov/37051359/
Zinc
Zinc is an essential mineral that forms the backbone of your immune health and overall vitality. It's a key player in the body’s enzyme systems that support testosterone production, which means getting enough zinc can help you maintain strength, recover faster, and keep your hormones in check. By fueling your body’s natural defenses and supporting optimal hormone balance, zinc helps you stay strong and resilient. Whether you're pushing your limits in the gym or warding off daily stresses, zinc can be a trusted ally for overall health.
References:
Research suggests that zinc status is closely associated with testosterone levels, with supplementation appearing most beneficial when zinc status is low. – Te et al., 2023 · J. Trace Elements in Medicine & Biology, https://pubmed.ncbi.nlm.nih.gov/36577241/
Clinical research found that restoring inadequate zinc intake was associated with a significant increase in testosterone levels. – Prasad et al., 1996 · Nutrition, https://pubmed.ncbi.nlm.nih.gov/8875519/
In a human crossover trial, zinc picolinate—the form used here—produced greater improvements in zinc status than zinc citrate or zinc gluconate. – Barrie et al., 1987 · Agents and Actions, https://pubmed.ncbi.nlm.nih.gov/3630857/
Zinc supplementation was shown to help maintain testosterone levels that otherwise declined following exhaustive exercise. – Kilic, 2007 · Neuroendocrinology Letters, https://pubmed.ncbi.nlm.nih.gov/17984944/
Zinc plays an important role in the development, signaling and normal function of cells throughout the immune system. – Maares et al., 2016 · Archives of Biochemistry & Biophysics, https://pubmed.ncbi.nlm.nih.gov/27021581/
Apigenin
Apigenin is the gentle flavonoid that gives chamomile its time-honored reputation as a bedtime companion. Research suggests it may help calm the mind by interacting with the body's natural relaxation receptors, encouraging an easy transition toward sleep. By inviting a sense of quiet at the end of the day, Apigenin helps you unwind and drift off with ease.
References:
Higher dietary intake of apigenin was associated with better sleep quality in a large observational study. – Godos et al., 2020 · Nutrients, https://pubmed.ncbi.nlm.nih.gov/32357534/
A meta-analysis found that chamomile can improve overall sleep quality and sleep onset; apigenin is one of chamomile's principal bioactive flavonoids. – Kazemi et al., 2024 · Complementary Therapies in Medicine, https://pubmed.ncbi.nlm.nih.gov/39106912/
Research on chamomile preparations, which contain apigenin among their bioactive compounds, suggests potential benefits for both sleep and anxiety. – Hieu et al., 2019 · Phytotherapy Research, https://pubmed.ncbi.nlm.nih.gov/31006899/
Clinical research on chamomile preparations suggests potential anxiety benefits. – Saadatmand et al., 2024 · Clinical Nutrition Research, https://pubmed.ncbi.nlm.nih.gov/38784853/
In preclinical research, apigenin combined with magnesium extended sleep duration more than either compound alone. – Wong et al., 2026 · Food & function, https://pubmed.ncbi.nlm.nih.gov/41701207/
Across 21 preclinical studies, apigenin consistently reduced anxiety and depression-like behaviors. – Wang et al., 2026 · Iranian journal of pharmaceutical research : IJPR, https://pubmed.ncbi.nlm.nih.gov/42488186/
Boswellia Serrata
Boswellia Serrata, known as Indian frankincense, is an aromatic resin treasured for thousands of years in traditional Ayurvedic practice. Research suggests its active boswellic acids may help support a healthy inflammatory response and ease the everyday stiffness that comes with an active lifestyle. By helping your body recover from daily physical stress, Boswellia keeps you moving comfortably and feeling your best.
References:
Standardized Boswellia was shown to reduce post-exercise muscle and joint soreness while supporting strength recovery and a healthy inflammatory response. – Salter et al., 2025 · Frontiers in Sports & Active Living, https://pubmed.ncbi.nlm.nih.gov/39917273/
A meta-analysis found that Boswellia serrata supplementation can reduce joint pain and stiffness. – Dubey et al., 2024 · Explore, https://pubmed.ncbi.nlm.nih.gov/38365549/
Glycine
Glycine is a naturally occurring amino acid that plays a quiet but essential role in preparing the body for sleep. Research suggests it may help gently lower core body temperature, a natural cue for rest, supporting better sleep quality and brighter, sharper mornings. By easing your body into its natural wind-down, Glycine helps you drift off more peacefully and wake feeling refreshed.
References:
Glycine taken before bed was shown to improve subjective sleep quality in people who regularly experienced poor sleep. – Bannai et al., 2012 · J. Pharmacological Sciences, https://pubmed.ncbi.nlm.nih.gov/22293292/
Human research suggests that glycine may improve subjective sleep quality. – Soh et al., 2024 · GeroScience, https://pubmed.ncbi.nlm.nih.gov/37851316/
Glycine taken before bed was shown to reduce next-day fatigue and sleepiness following a night of restricted sleep. – Bannai et al., 2012 · Frontiers in Neurology, https://pubmed.ncbi.nlm.nih.gov/22529837/
L-Theanine
L-Theanine is the prized amino acid behind the calm, focused feeling of a warm cup of green tea, cherished for centuries across East Asia. Research suggests it may help quiet stress and soften anxious tension while keeping the mind clear, promoting a sense of relaxation without drowsiness. By easing you into a state of calm alertness, L-Theanine helps you let go of the day's pressures and settle naturally toward rest.
References:
At 200 mg daily—the amount in this serving—L-theanine was shown to reduce several stress-related symptoms while improving some measures of sleep and cognitive function. – Hidese et al., 2019 · Nutrients, https://pubmed.ncbi.nlm.nih.gov/31623400/
A systematic review found that pure L-theanine may help reduce stress and anxiety during stressful or demanding situations. – Williams et al., 2020 · Plant Foods for Human Nutrition, https://pubmed.ncbi.nlm.nih.gov/31758301/
A meta-analysis found that L-theanine supplementation can produce modest improvements in several measures of subjective sleep quality. – Bulman et al., 2025 · Sleep Medicine Reviews, https://pubmed.ncbi.nlm.nih.gov/40056718/
A single 200 mg dose of L-theanine was shown to influence calming alpha brain activity and reduce cortisol following an acute stressor. – Evans et al., 2021 · Neurology & Therapy, https://pubmed.ncbi.nlm.nih.gov/34562208/
Lemon Balm
Lemon Balm (Melissa officinalis) is a fragrant garden herb from the mint family, treasured since ancient times as a gentle tonic for the spirit. Research suggests it may help lift the mood, calm the nerves, and bring a greater sense of ease during stressful moments. By soothing both mind and body, Lemon Balm helps you find the tranquil, unhurried calm that makes rest come easily.
References:
A meta-analysis found that lemon balm supplementation can reduce anxiety symptoms, with evidence also suggesting potential benefits for depressive symptoms. – Ghazizadeh et al., 2021 · Phytotherapy Research, https://pubmed.ncbi.nlm.nih.gov/34449930/
A standardized lemon balm extract was shown to improve measures of mood, anxiety, stress and overall psychological well-being. – Bano et al., 2023 · Frontiers in Pharmacology, https://pubmed.ncbi.nlm.nih.gov/37927585/
A standardized lemon balm extract was shown to improve subjective sleep quality compared with placebo. – Di Pierro et al., 2024 · Nutrients, https://pubmed.ncbi.nlm.nih.gov/39683592/
Lemon balm was shown to increase self-rated calmness during demanding and stressful tasks. – Kennedy et al., 2004 · Psychosomatic Medicine, https://pubmed.ncbi.nlm.nih.gov/15272110/
Magnesium Glycinate
Magnesium is an essential mineral woven into hundreds of the body's everyday processes, long valued for its soothing, restorative qualities. Research suggests it may help calm a busy mind, ease the tension of daily stress, and support deeper, more restful sleep, particularly when the body is running low. By replenishing this foundational mineral, Magnesium helps you unwind at the end of the day and wake feeling restored.
References:
Magnesium supplementation, with or without vitamin B6, was shown to significantly reduce perceived stress. – Noah et al., 2021 · Stress & Health, https://pubmed.ncbi.nlm.nih.gov/33864354/
A systematic review found that magnesium supplementation may help reduce subjective feelings of anxiety, although the quality of evidence remains mixed. – Boyle et al., 2017 · Nutrients, https://pubmed.ncbi.nlm.nih.gov/28445426/
Magnesium bisglycinate—the form used in Peak Renewal—was shown to modestly improve insomnia severity over four weeks. – Schuster et al., 2025 · Nature & Science of Sleep, https://pubmed.ncbi.nlm.nih.gov/40918053/
Research has found an association between higher magnesium intake and better sleep quality, although findings across studies remain mixed. – Arab et al., 2023 · Biol. Trace Elem. Research, https://pubmed.ncbi.nlm.nih.gov/35184264/
A magnesium-based combination supplement was shown to reduce perceived stress while improving daytime alertness. – Noah et al., 2022 · Nutrients, https://pubmed.ncbi.nlm.nih.gov/35565828/
Research suggests that magnesium supplementation may improve some measures of insomnia, although larger and better-designed trials are still needed. – Mah et al., 2021 · BMC Complement. Med. Ther., https://pubmed.ncbi.nlm.nih.gov/33865376/
Magnolia Bark
Magnolia Bark is a revered botanical from traditional Chinese and Japanese medicine, prized for its calming lignans honokiol and magnolol. Research suggests it may help quiet the stress response and support a balanced mood by working with the body's natural relaxation pathways. By gently easing tension as the day winds down, Magnolia Bark helps you let go of stress and ease into restful calm.
References:
A magnolia bark–containing supplement was shown to reduce cortisol exposure while improving some measures of mood and stress. – Talbott et al., 2013 · J. Int. Society of Sports Nutrition, https://pubmed.ncbi.nlm.nih.gov/23924268/
A supplement combining magnolia and phellodendron bark extracts reduced some measures of temporary anxiety. – Kalman et al., 2008 · Nutrition Journal, https://pubmed.ncbi.nlm.nih.gov/18426577/
Research on magnolia bark has identified bioactive compounds that influence pathways involved in anxiety, mood and nervous-system activity. – Niu et al., 2021 · J. Ethnopharmacology, https://pubmed.ncbi.nlm.nih.gov/34400262/
Tart Cherry
Tart Cherry is the ruby-red fruit prized as one of nature's richest sources of sleep-supporting compounds and recovery polyphenols. Research suggests it may help improve the quality of your sleep while easing the wear and tear that an active life leaves behind. By nourishing your body's natural rhythms and recovery, Tart Cherry helps you rest deeply and rise ready for the day ahead.
References:
Seven days of tart cherry concentrate was shown to increase melatonin levels while improving total sleep time and sleep efficiency. – Howatson et al., 2012 · European J. Nutrition, https://pubmed.ncbi.nlm.nih.gov/22038497/
Tart cherry supplementation was shown to improve measures of sleep following strenuous exercise. – Chung et al., 2022 · Int. J. Environ. Research & Public Health, https://pubmed.ncbi.nlm.nih.gov/36011907/
Across exercise studies, tart cherry supplementation supported recovery by reducing muscle soreness and some markers of inflammation and muscle damage. – Hill et al., 2021 · Int. J. Sport Nutrition, https://pubmed.ncbi.nlm.nih.gov/33440334/
Taurine
Taurine is an amino acid found abundantly throughout the body, especially in the heart, muscles, and brain, where it supports recovery and resilience. Research suggests it may help the body bounce back from physical exertion, easing fatigue and supporting its natural antioxidant defenses. By helping you recover from the demands of an active life, Taurine keeps you feeling restored and ready for whatever comes next.
References:
Research suggests that taurine supplementation around exercise may help reduce muscular fatigue while supporting antioxidant activity. – Chen et al., 2021 · Frontiers in Physiology, https://pubmed.ncbi.nlm.nih.gov/34497536/
Taurine supplementation was shown to reduce several markers of exercise-induced muscle damage and oxidative stress. – da Silva et al., 2014 · Appl. Physiology, Nutrition & Metabolism, https://pubmed.ncbi.nlm.nih.gov/24383513/
Research shows that taurine acts as a neuromodulator in the nervous system, helping regulate neuronal activity while supporting nerve-cell protection. – Wu et al., 2010 · J. Biomedical Science, https://pubmed.ncbi.nlm.nih.gov/20804583/
Preclinical research shows that taurine can interact with GABA-A and other inhibitory receptors involved in regulating nervous-system activity. – Meera et al., 2023 · Frontiers in Pharmacology, https://pubmed.ncbi.nlm.nih.gov/38155909/
Vitamin B6
Vitamin B6 is found in some of nature's most nourishing foods, where it works quietly behind the scenes to help your body craft the calming messengers GABA and serotonin. Research suggests it may help ease feelings of anxiety and support a steady, balanced mood, especially when paired with magnesium. By helping keep your nervous system in harmony, Vitamin B6 lays the groundwork for the kind of calm that carries you gently into rest.
References:
High-dose vitamin B6 supplementation was shown to increase markers associated with GABA activity while reducing self-reported anxiety. – Field et al., 2022 · Human Psychopharmacology, https://pubmed.ncbi.nlm.nih.gov/35851507/
Magnesium combined with vitamin B6 reduced perceived stress, with the additional benefit of B6 most apparent when baseline stress was higher. – Pouteau et al., 2018 · PLoS One, https://pubmed.ncbi.nlm.nih.gov/30562392/
Higher dietary vitamin B6 intake has been associated with a lower risk of depression across observational studies. – Wu et al., 2022 · Nutrition Reviews, https://pubmed.ncbi.nlm.nih.gov/33912967/
MEET THE PEAK SERIES
