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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.
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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:
Gupta, Ashish et al.. “Efficacy of Withania somnifera on seminal plasma metabolites of infertile males: a proton NMR study at 800 MHz.” Journal of ethnopharmacology vol. , (2013): 208-14, https://pubmed.ncbi.nlm.nih.gov/23796876/
Ahmad, Mohammad Kaleem et al.. “Withania somnifera improves semen quality by regulating reproductive hormone levels and oxidative stress in seminal plasma of infertile males.” Fertility and sterility vol. , (2010): 989-96, https://pubmed.ncbi.nlm.nih.gov/19501822/
Ambiye, Vijay R et al.. “Clinical Evaluation of the Spermatogenic Activity of the Root Extract of Ashwagandha (Withania somnifera) in Oligospermic Males: A Pilot Study.” Evidence-based complementary and alternative medicine : eCAM vol. , (2013): 571420, https://pubmed.ncbi.nlm.nih.gov/24371462/
Andrade, C et al.. “A double-blind, placebo-controlled evaluation of the anxiolytic efficacy ff an ethanolic extract of withania somnifera.” Indian journal of psychiatry vol. , (2000): 295-301, https://pubmed.ncbi.nlm.nih.gov/21407960
Langade, Deepak et al.. “Efficacy and Safety of Ashwagandha (Withania somnifera) Root Extract in Insomnia and Anxiety: A Double-blind, Randomized, Placebo-controlled Study.” Cureus vol. , (2019): e5797, https://pubmed.ncbi.nlm.nih.gov/31728244
Chandrasekhar, K et al.. “A prospective, randomized double-blind, placebo-controlled study of safety and efficacy of a high-concentration full-spectrum extract of ashwagandha root in reducing stress and anxiety in adults.” Indian journal of psychological medicine vol. , (2012): 255-62, https://pubmed.ncbi.nlm.nih.gov/23439798
Smith, Stephen J et al.. “Exploring the efficacy and safety of a novel standardized ashwagandha () root extract (Witholytin®) in adults experiencing high stress and fatigue in a randomized, double-blind, placebo-controlled trial.” Journal of psychopharmacology (Oxford, England) vol. , (2023): 1091-1104, https://pubmed.ncbi.nlm.nih.gov/37740662/
Arumugam, Velan et al.. “Effects of Ashwagandha (Withania Somnifera) on stress and anxiety: A systematic review and meta-analysis.” Explore (New York, N.Y.) vol. , (2024): 103062, https://pubmed.ncbi.nlm.nih.gov/39348746
Majeed, Muhammed et al.. “A standardized Ashwagandha root extract alleviates stress, anxiety, and improves quality of life in healthy adults by modulating stress hormones: Results from a randomized, double-blind, placebo-controlled study.” Medicine vol. , (2023): e35521, https://pubmed.ncbi.nlm.nih.gov/37832082/
Chauhan, Sanjaya et al.. “Effect of standardized root extract of ashwagandha () on well-being and sexual performance in adult males: A randomized controlled trial.” Health science reports vol. , (2022): e741, https://pubmed.ncbi.nlm.nih.gov/35873404/
Bonilla, Diego A et al.. “Effects of Ashwagandha () on Physical Performance: Systematic Review and Bayesian Meta-Analysis.” Journal of functional morphology and kinesiology vol. , (2021): , https://pubmed.ncbi.nlm.nih.gov/33670194/
Smith, Stephen J et al.. “Examining the Effects of Herbs on Testosterone Concentrations in Men: A Systematic Review.” Advances in nutrition (Bethesda, Md.) vol. , (2021): 744-765, https://pubmed.ncbi.nlm.nih.gov/33150931/
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:
Melnikovova, Ingrid et al.. “Effect of Lepidium meyenii Walp. on Semen Parameters and Serum Hormone Levels in Healthy Adult Men: A Double-Blind, Randomized, Placebo-Controlled Pilot Study.” Evidence-based complementary and alternative medicine : eCAM vol. , (2015): 324369, https://pubmed.ncbi.nlm.nih.gov/26421049
Gonzales-Arimborgo, Carla et al.. “Acceptability, Safety, and Efficacy of Oral Administration of Extracts of Black or Red Maca (Lepidium meyenii) in Adult Human Subjects: A Randomized, Double-Blind, Placebo-Controlled Study.” Pharmaceuticals (Basel, Switzerland) vol. , (2016): , https://pubmed.ncbi.nlm.nih.gov/27548190
Lee, Eunjae et al.. “Effect of Black Maca Supplementation on Inflammatory Markers and Physical Fitness in Male Elite Athletes.” Nutrients vol. , (2023): , https://pubmed.ncbi.nlm.nih.gov/37049458/
Gonzales, Gustavo F et al.. “Lepidium meyenii (Maca): a plant from the highlands of Peru--from tradition to science.” Forschende Komplementarmedizin (2006) vol. , (2009): 373-80, https://pubmed.ncbi.nlm.nih.gov/20090350/
Gonzales, G F et al.. “Effect of Lepidium meyenii (Maca), a root with aphrodisiac and fertility-enhancing properties, on serum reproductive hormone levels in adult healthy men.” The Journal of endocrinology vol. , (2003): 163-8, https://pubmed.ncbi.nlm.nih.gov/12525260
Gonzales, G F et al.. “Effect of Lepidium meyenii (MACA) on sexual desire and its absent relationship with serum testosterone levels in adult healthy men.” Andrologia vol. , (2002): 367-72, https://pubmed.ncbi.nlm.nih.gov/12472620
Dording, Christina M et al.. “A double-blind, randomized, pilot dose-finding study of maca root (L. meyenii) for the management of SSRI-induced sexual dysfunction.” CNS neuroscience & therapeutics vol. , (2008): 182-91, https://pubmed.ncbi.nlm.nih.gov/18801111
Shin, Dongho et al.. “Efficacy and Safety of Maca () in Patients with Symptoms of Late-Onset Hypogonadism: A Randomized, Double-Blind, Placebo-Controlled Clinical Trial.” The world journal of men's health vol. , (2023): 692-700, https://pubmed.ncbi.nlm.nih.gov/36593713/
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:
Naghii, Mohammad Reza et al.. “Comparative effects of daily and weekly boron supplementation on plasma steroid hormones and proinflammatory cytokines.” Journal of trace elements in medicine and biology : organ of the Society for Minerals and Trace Elements (GMS) vol. , (2011): 54-8, https://pubmed.ncbi.nlm.nih.gov/21129941/
Pizzorno, Lara. “Nothing Boring About Boron.” Integrative medicine (Encinitas, Calif.) vol. , (2015): 35-48, 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:
Steels, Elizabeth et al.. “Physiological aspects of male libido enhanced by standardized Trigonella foenum-graecum extract and mineral formulation.” Phytotherapy research : PTR vol. , (2011): 1294-300, https://pubmed.ncbi.nlm.nih.gov/21312304
Abdel-Barry, J A et al.. “Hypoglycaemic effect of aqueous extract of the leaves of Trigonella foenum-graecum in healthy volunteers.” Eastern Mediterranean health journal = La revue de sante de la Mediterranee orientale = al-Majallah al-sihhiyah li-sharq al-mutawassit vol. , (2000): 83-8, https://pubmed.ncbi.nlm.nih.gov/11370345
Gupta, A et al.. “Effect of Trigonella foenum-graecum (fenugreek) seeds on glycaemic control and insulin resistance in type 2 diabetes mellitus: a double blind placebo controlled study.” The Journal of the Association of Physicians of India vol. , (2001): 1057-61, https://pubmed.ncbi.nlm.nih.gov/11868855
Skrzypiec-Spring, Monika et al.. “Withania somnifera and Trigonella foenum-graecum as ingredients of testosterone-boosting supplements: Possible clinical implications.” Advances in clinical and experimental medicine : official organ Wroclaw Medical University vol. , (2025): 295-303, 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:
Shi, Shihua et al.. “Epimedium for Osteoporosis Based on Western and Eastern Medicine: An Updated Systematic Review and Meta-Analysis.” Frontiers in pharmacology vol. , (2022): 782096, https://pubmed.ncbi.nlm.nih.gov/35431937
Shindel, Alan W et al.. “Erectogenic and neurotrophic effects of icariin, a purified extract of horny goat weed (Epimedium spp.) in vitro and in vivo.” The journal of sexual medicine vol. , (2010): 1518-28, https://pubmed.ncbi.nlm.nih.gov/20141584
Tian, Long et al.. “[Effects of icariin on the erectile function and expression of nitrogen oxide synthase isoforms in corpus cavernosum of arterigenic erectile dysfunction rat model].” Zhonghua yi xue za zhi vol. , (2004): 954-7, https://pubmed.ncbi.nlm.nih.gov/15329286
Fernández-Lázaro, Diego et al.. “The Effects of 6 Weeks of L. Supplementation on Body Composition, Hormonal Response, Perceived Exertion, and CrossFit Performance: A Randomized, Single-Blind, Placebo-Controlled Study.” Nutrients vol. , (2021): , https://pubmed.ncbi.nlm.nih.gov/34836225/
Zhuang, Wei et al.. “A literature review on , a medicinal plant with promising slow aging properties.” Heliyon vol. , (2023): e21226, https://pubmed.ncbi.nlm.nih.gov/38027566/
Liu, Song-Po et al.. “Pharmacological actions of the bioactive compounds of Epimedium on the male reproductive system: current status and future perspective.” Asian journal of andrology vol. , (2025): 20-29, https://pubmed.ncbi.nlm.nih.gov/38978290/
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:
Cormio, Luigi et al.. “Oral L-citrulline supplementation improves erection hardness in men with mild erectile dysfunction.” Urology vol. , (2011): 119-22, https://pubmed.ncbi.nlm.nih.gov/21195829/
Smeets, Ellen T H C et al.. “Effects of L-citrulline supplementation and watermelon consumption on longer-term and postprandial vascular function and cardiometabolic risk markers: A meta-analysis of randomized controlled trials in adults.” The British journal of nutrition vol. , (2021): 1-34, https://pubmed.ncbi.nlm.nih.gov/34863321/
Shirai, Masato et al.. “Oral L-citrulline and Transresveratrol Supplementation Improves Erectile Function in Men With Phosphodiesterase 5 Inhibitors: A Randomized, Double-Blind, Placebo-Controlled Crossover Pilot Study.” Sexual medicine vol. , (2018): 291-296, https://pubmed.ncbi.nlm.nih.gov/30150102/
Gonzalez, Adam M, and Trexler, Eric T. “Effects of Citrulline Supplementation on Exercise Performance in Humans: A Review of the Current Literature.” Journal of strength and conditioning research vol. , (2020): 1480-1495, https://pubmed.ncbi.nlm.nih.gov/31977835/
Vårvik, Fredrik Tonstad et al.. “Acute Effect of Citrulline Malate on Repetition Performance During Strength Training: A Systematic Review and Meta-Analysis.” International journal of sport nutrition and exercise metabolism vol. , (2021): 350-358, https://pubmed.ncbi.nlm.nih.gov/34010809/
Gough, Lewis A et al.. “A critical review of citrulline malate supplementation and exercise performance.” European journal of applied physiology vol. , (2021): 3283-3295, https://pubmed.ncbi.nlm.nih.gov/34417881/
Pérez-Guisado, Joaquín, and Jakeman, Philip M. “Citrulline malate enhances athletic anaerobic performance and relieves muscle soreness.” Journal of strength and conditioning research vol. , (2010): 1215-22, https://pubmed.ncbi.nlm.nih.gov/20386132/
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:
Zeng, Maogui et al.. “Effects of Ginseng on Cognitive Function: A Systematic Review and Meta-Analysis.” Phytotherapy research : PTR vol. , (2024): 6023-6034, https://pubmed.ncbi.nlm.nih.gov/39474788
Chen, Yu-Ying et al.. “Ginsenoside Rd: A promising natural neuroprotective agent.” Phytomedicine : international journal of phytotherapy and phytopharmacology vol. , (2022): 153883, https://pubmed.ncbi.nlm.nih.gov/34952508/
Jang, Dai-Ja et al.. “Red ginseng for treating erectile dysfunction: a systematic review.” British journal of clinical pharmacology vol. , (2008): 444-50, https://pubmed.ncbi.nlm.nih.gov/18754850/
Wang, Hao et al.. “The role of red ginseng in men's reproductive health: a literature review.” Basic and clinical andrology vol. , (2023): 27, https://pubmed.ncbi.nlm.nih.gov/37880595/
Jung, Eui-Man et al.. “Protective effects of Korean Red Ginseng against toxicity of endocrine-disrupting chemicals.” Journal of ginseng research vol. , (2023): 193-198, https://pubmed.ncbi.nlm.nih.gov/36926605/
Park, Tae Young et al.. “Effect of Korean Red Ginseng in chronic liver disease.” Journal of ginseng research vol. , (2017): 450-455, https://pubmed.ncbi.nlm.nih.gov/29021690/
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:
Talbott, Shawn M et al.. “Effect of Tongkat Ali on stress hormones and psychological mood state in moderately stressed subjects.” Journal of the International Society of Sports Nutrition vol. , (2013): 28, https://pubmed.ncbi.nlm.nih.gov/23705671/
Leitão, Alice Erwig et al.. “A 6-month, double-blind, placebo-controlled, randomized trial to evaluate the effect of Eurycoma longifolia (Tongkat Ali) and concurrent training on erectile function and testosterone levels in androgen deficiency of aging males (ADAM).” Maturitas vol. , (2021): 78-85, https://pubmed.ncbi.nlm.nih.gov/33541567/
Chan, Kai Quin et al.. “The effect of Eurycoma Longifolia on the regulation of reproductive hormones in young males.” Andrologia vol. , (2021): e14001, https://pubmed.ncbi.nlm.nih.gov/33559971/
Leisegang, Kristian et al.. “ (Jack) Improves Serum Total Testosterone in Men: A Systematic Review and Meta-Analysis of Clinical Trials.” Medicina (Kaunas, Lithuania) vol. , (2022): , https://pubmed.ncbi.nlm.nih.gov/36013514/
Tambi, M I B M et al.. “Standardised water-soluble extract of Eurycoma longifolia, Tongkat ali, as testosterone booster for managing men with late-onset hypogonadism?.” Andrologia vol. , (2012): 226-30, 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:
GamalEl Din, Sameh Fayek et al.. “Tribulus terrestris versus placebo in the treatment of erectile dysfunction and lower urinary tract symptoms in patients with late-onset hypogonadism: A placebo-controlled study.” Urologia vol. , (2019): 74-78, https://pubmed.ncbi.nlm.nih.gov/30253697
Roaiah, Mohamed Farid et al.. “Pilot Study on the Effect of Botanical Medicine (Tribulus terrestris) on Serum Testosterone Level and Erectile Function in Aging Males With Partial Androgen Deficiency (PADAM).” Journal of sex & marital therapy vol. , (2016): 297-301, https://pubmed.ncbi.nlm.nih.gov/25849625
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:
Tardy, Anne-Laure et al.. “Vitamins and Minerals for Energy, Fatigue and Cognition: A Narrative Review of the Biochemical and Clinical Evidence.” Nutrients vol. , (2020): , https://pubmed.ncbi.nlm.nih.gov/31963141/
Stach, Kamilla et al.. “Vitamin B6 in Health and Disease.” Nutrients vol. , (2021): , https://pubmed.ncbi.nlm.nih.gov/34579110/
Ueland, Per Magne et al.. “Inflammation, vitamin B6 and related pathways.” Molecular aspects of medicine vol. , (2017): 10-27, 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:
Akpınar, Şerife, and Karadağ, Makbule Gezmen. “Is Vitamin D Important in Anxiety or Depression? What Is the Truth?.” Current nutrition reports vol. , (2022): 675-681, https://pubmed.ncbi.nlm.nih.gov/36097104/
Chakkera, Mohana et al.. “The Efficacy of Vitamin D Supplementation in Patients With Alzheimer's Disease in Preventing Cognitive Decline: A Systematic Review.” Cureus vol. , (2022): e31710, https://pubmed.ncbi.nlm.nih.gov/36569670/
Carlberg, Carsten et al.. “Vitamin D: A master example of nutrigenomics.” Redox biology vol. , (2023): 102695, https://pubmed.ncbi.nlm.nih.gov/37043983/
Kang, Jae H et al.. “Effect of vitamin D on cognitive decline: results from two ancillary studies of the VITAL randomized trial.” Scientific reports vol. , (2021): 23253, https://pubmed.ncbi.nlm.nih.gov/34853363/
Kaviani, Mina et al.. “Effects of vitamin D supplementation on depression and some involved neurotransmitters.” Journal of affective disorders vol. , (2020): 28-35, https://pubmed.ncbi.nlm.nih.gov/32217340/
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:
Kilic, Mehmet. “Effect of fatiguing bicycle exercise on thyroid hormone and testosterone levels in sedentary males supplemented with oral zinc.” Neuro endocrinology letters vol. , (2007): 681-5, https://pubmed.ncbi.nlm.nih.gov/17984944/
Prasad, A S et al.. “Zinc status and serum testosterone levels of healthy adults.” Nutrition (Burbank, Los Angeles County, Calif.) vol. , (1996): 344-8, https://pubmed.ncbi.nlm.nih.gov/8875519/
Maares, Maria, and Haase, Hajo. “Zinc and immunity: An essential interrelation.” Archives of biochemistry and biophysics vol. , (2016): 58-65, https://pubmed.ncbi.nlm.nih.gov/27021581/
Te, Liger et al.. “Correlation between serum zinc and testosterone: A systematic review.” Journal of trace elements in medicine and biology : organ of the Society for Minerals and Trace Elements (GMS) vol. , (2023): 127124, https://pubmed.ncbi.nlm.nih.gov/36577241
Barrie, S A et al.. “Comparative absorption of zinc picolinate, zinc citrate and zinc gluconate in humans.” Agents and actions vol. , (1987): 223-8, https://pubmed.ncbi.nlm.nih.gov/3630857/