Benefits of Testosterone¹ Support Caps
Key Findings
Tribulus terrestris may improve sexual function in both men and women, including desire, arousal, and erectile function, and can enhance sperm parameters in men [1] [2] [3] [4] [5].
Ashwagandha has been shown to improve general health and quality of life in elderly individuals, enhance sexual function in male rats, and may offer benefits for stress management and physical performance [6] [7] [8] [9].
The provided literature does not contain specific information regarding the health benefits of Maca, Shilajit, Zinc, Selenium, or Vitamin D3 when combined in a supplement as described, nor does it evaluate the specific combination of ingredients in "Testosterone Support" supplements [10].
Introduction
This report discusses the potential health benefits of a supplement containing Ashwagandha, Maca, Shilajit, Tribulus terrestris, Zinc, Selenium, and Vitamin D3, based on available scientific literature. While some individual ingredients have been studied for their effects, specific research on this particular combination, often marketed as "testosterone boosters," is limited.
Tribulus terrestris Benefits
Sexual Function in Women: A randomized double-blind placebo-controlled trial involving 67 women with hypoactive sexual desire disorder found that Tribulus terrestris extract (7.5 mg/day for 4 weeks) significantly improved total Female Sexual Function Index (FSFI) scores, including desire, arousal, lubrication, satisfaction, and pain, compared to placebo [2]. Another randomized, double-blinded, placebo-controlled study with 36 postmenopausal women reported that 750 mg/d of T. terrestris for 120 days improved desire, arousal/lubrication, pain, and anorgasmia, and significantly increased free and bioavailable testosterone levels [5].
Sexual Function in Men: A systematic review and meta-analysis of eight randomized trials indicated that Tribulus terrestris supplementation significantly elevated International Index of Erectile Function (IIEF-5 and IIEF-15) scores compared to pre-supplementation levels and outperformed placebo. However, no significant difference in total testosterone levels was observed between Tribulus terrestris and placebo groups [3]. In a study of 65 infertile men with abnormal semen evaluation, oral administration of Androsten® (250 mg Tribulus terrestris dried extract per capsule) led to significant enhancement in sperm concentration, motility, and liquefaction time, along with a decrease in body fat percentage and an increase in dihydrotestosterone levels [4]. Animal studies also suggest T. terrestris can improve erectile parameters and sperm quality, though human studies on testosterone increase are inconsistent [1].
Other Potential Benefits: Tribulus terrestris has been traditionally used and studied for various properties, including antioxidant, anti-inflammatory, anti-cancer, anti-diabetic, and hepatoprotective effects [11] [12] [13] [14]. In an experimental liver fibrosis model in rats, T. terrestris demonstrated protective effects on the liver, being slightly more effective than Ashwagandha [15].
Ashwagandha Benefits
General Health and Quality of Life: A prospective, randomized, double-blind, placebo-controlled trial involving 50 healthy elderly individuals (aged 60-85 years) found that Ashwagandha Root Extract (300 mg twice daily for 8 weeks) significantly improved scores for the Older People's Quality of Life (OPQOL) questionnaire, Epworth Sleepiness Scale (ESS), and Senior Fitness Test (SFT) compared to placebo [6].
Sexual Function and Physical Performance: Ashwagandha has been reported to possess aphrodisiac activities in traditional usages. A study in male rats showed Ashwagandha supplementation improved sexual function and increased serum testosterone levels compared to controls [7]. It is also recognized as an adaptogen that aids sleep, stress management, and offers health and sports-related benefits, including potential impacts on strength, endurance, power, recovery, muscle mass, and body fat [8] [9].
Limitations
The provided literature does not offer specific scientific evidence regarding the health benefits of Maca, Shilajit, Zinc, Selenium, or Vitamin D3 within the context of the "Testosterone Support" supplement described. While some individual agents in commercially sold "testosterone boosters" have limited scientific literature, rigorous evaluations of these multi-supplement combinations are often lacking, making it challenging to assess marketing claims [10].
Conclusion
Based on the available literature, Tribulus terrestris shows promise in improving various aspects of sexual function in both men and women, including desire, arousal, erectile function, and sperm parameters. Ashwagandha has demonstrated benefits for general health and quality of life in the elderly, and may enhance sexual function and physical performance. However, there is insufficient specific evidence in the provided articles to confirm the health benefits of the entire combination of ingredients (Ashwagandha, Maca, Shilajit, Tribulus terrestris, Zinc, Selenium, and Vitamin D3) as a "Testosterone Support" supplement. Further in-depth clinical studies are needed to fully understand the pharmacodynamics and efficacy of such multi-ingredient formulations [11] [10] [14].
References:
1) Mohaddese Mahboubi et al. Tribulus terrestris in Management of Sexual Functions. The Natural Products Journal (2018). https://www.eurekaselect.com/article/93876
2) E Akhtari et al. Tribulus terrestris for treatment of sexual dysfunction in women: randomized double-blind placebo - controlled study. Daru : journal of Faculty of Pharmacy, Tehran University of Medical Sciences (2014). https://pubmed.ncbi.nlm.nih.gov/24773615/
3) S Suharyani et al. Tribulus terrestris for management of patients with erectile dysfunction: a systematic review and meta-analysis of randomized trials. International journal of impotence research (2025). https://pubmed.ncbi.nlm.nih.gov/40360723/
4) RM Salgado et al. Effect of oral administration of Tribulus terrestris extract on semen quality and body fat index of infertile men. Andrologia (2016). https://pubmed.ncbi.nlm.nih.gov/27401787/
5) KZ de Souza et al. Efficacy of Tribulus terrestris for the treatment of hypoactive sexual desire disorder in postmenopausal women: a randomized, double-blinded, placebo-controlled trial. Menopause (New York, N.Y.) (2016). https://pubmed.ncbi.nlm.nih.gov/27760089/
6) R Honnutagi et al. Ashwagandha (Withania somnifera) Root Extract Improves General Health in Elderly Men and Women: A Prospective, Randomized, Double-Blind, Placebo-Controlled, Efficacy and Safety Study. Phytotherapy research : PTR (2026). https://pubmed.ncbi.nlm.nih.gov/41725116/
7) K Sahin et al. Comparative evaluation of the sexual functions and NF-κB and Nrf2 pathways of some aphrodisiac herbal extracts in male rats. BMC complementary and alternative medicine (2016). https://pubmed.ncbi.nlm.nih.gov/27561457/
8) M Sprengel et al. Withania somnifera (Ashwagandha) supplementation: a review of its mechanisms, health benefits, and role in sports performance. Nutrition & metabolism (2025). https://pubmed.ncbi.nlm.nih.gov/39910586/
9) S Guo et al. The benefits of ashwagandha (Withania somnifera) supplements on brain function and sports performance. Frontiers in nutrition (2024). https://pubmed.ncbi.nlm.nih.gov/39155932/
10) Adrián Andrés Aguilar-Morgan et al. Testosterone Boosters: How Real Are Their Effects?. Androgens Clinical Research and Therapeutics (2022). https://journals.sagepub.com/doi/10.1089/andro.2022.0007
11) Rasika Gunarathne et al. Potential Nutraceutical Use of Tribulus terrestris L. in Human Health. Food Reviews International (2022). https://www.tandfonline.com/doi/full/10.1080/87559129.2022.2067172
12) Haiyan Zhang et al. Study of puncture vine (Tribulus terrestris L.), and the important roles of its chemical ingredients. Notulae Scientia Biologicae (2025). https://www.notulaebiologicae.ro/index.php/nsb/article/view/12194
13) M Saeed et al. Promising phytopharmacology, nutritional potential, health benefits, and traditional usage of Tribulus terrestris L. herb. Heliyon (2024). https://pubmed.ncbi.nlm.nih.gov/38375303/
14) Derya ALTAY et al. Hepatoprotective effects of Tribulus terrestris, Ashwagandha and N-acetylcysteine on liver fibrosis in carbon tetrachloride-induced rats. Acta Poloniae Pharmaceutica - Drug Research (2019). https://www.ptfarm.pl/download/?file=File%2FActa_Poloniae%2F2019%2F5%2F805.pdf