testosterone
Zinc is one of 24 micronutrients essential for human survival, and it plays a critical role in male health — it's required for the enzymatic reactions that produce testosterone. When zinc is deficient, testosterone production suffers. That's established biochemistry, not speculation.
We include zinc as zinc picolinate, a well-absorbed chelated form designed for uptake. Our 20mg dose provides 182% of the daily value — moderate supplementation that accounts for the zinc most active men lose through exercise, stress, and lifestyle, while staying well under the 40mg upper limit.
The statements on this page have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
Exercise, stress, and alcohol quietly drain a mineral your body can’t make testosterone without. Zinc helps maintain what daily life depletes.
+93% testosterone
Serum testosterone, nmol/L
9 older men and 4 young men, no placebo group. The supplement dose was 30 mg a day (ours is 20 mg). Placebo-controlled trials in men with enough zinc have not shown a rise.
View study →300+ enzymes
The link to testosterone shows most clearly when zinc runs low, as in the study card beside this one.
Our 20mg dose provides 182% of the daily value — a moderate dose that covers the RDI and accounts for the zinc most active men lose through exercise, stress, and lifestyle.
Note on upper limits: If you take additional zinc supplements, be mindful of total daily intake. Chronic high-dose zinc supplementation (>40mg/day) can interfere with copper absorption and cause other issues.
Studies on zinc and testosterone use 15–40mg daily. Our 20mg covers 182% of the daily value — a moderate dose that offsets common deficiencies from exercise, stress, and diet while staying well under the 40mg upper limit.
Your body doesn't synthesize testosterone without zinc. Every workout, every stressful day, every drink quietly drains it.
Prasad AS, et al. (1996). Nutrition. Source
In an uncontrolled study, nine elderly men who were marginally zinc-deficient took 30 mg of zinc a day for 3 to 6 months, and their testosterone rose from 8.3 to 16.0 nmol/L (p=0.02). In four young men whose dietary zinc was restricted for 20 weeks, testosterone fell from 39.9 to 10.6 nmol/L. The link runs through deficiency: placebo-controlled trials in men with adequate zinc have not shown a testosterone rise.
Mahajan SK, et al. (1982). Annals of Internal Medicine. Source
In a double-blind, placebo-controlled trial of 20 men on haemodialysis, whose kidney disease had left them zinc-deficient, 50 mg of zinc a day (2.5× our dose) for 6 months raised testosterone from 2.8 to 5.2 ng/mL, while placebo produced no change. It is the only placebo-controlled trial to show a testosterone rise from zinc, and it was in men with a disease-driven deficiency; two other trials in dialysis patients found no effect.
Kilic M, et al. (2006). Neuro Endocrinology Letters. Source
In a small study of 10 male wrestlers with no placebo group, four weeks of zinc sulphate (3 mg per kg of body weight a day, well above our dose) was followed by higher resting and post-exercise testosterone and thyroid hormone levels than before supplementation. Athletes lose zinc through sweat, so needs can run higher.
Wessels I, et al. (2017). Nutrients. Source
Zinc is critical for immune function. Deficiency impairs immune cell function, while adequate zinc supports both innate and adaptive immunity. This has been extensively documented across multiple studies.
Om AS, Chung KW. (1996). The Journal of Nutrition. Source
An animal study found that zinc deficiency altered aromatization of testosterone in rat liver, suggesting zinc plays a role in modulating testosterone-to-estrogen balance. This is an additional proposed mechanism beyond its role in testosterone synthesis.
Every claim we make is grounded in peer-reviewed research. Tap any study to read the abstract.
Zinc is biochemically required for testosterone synthesis — this isn't theory, it's established biology. Supplementation restores testosterone in deficient men. Benefits in already-replete men are less clear.
No ingredient works alone. Zinc was chosen because it amplifies — and is amplified by — specific formula partners.
Zinc provides the biochemical foundation for testosterone synthesis — it's required for the enzymes that produce testosterone. Tongkat ali and fenugreek support the signaling and hormonal environment that determines how that testosterone is used. Foundation plus optimization.
Both zinc and vitamin D are common deficiencies that affect testosterone production. Addressing both simultaneously covers two potential bottlenecks — zinc at the synthesis level, vitamin D at the receptor and signaling level.
Zinc and boron both influence testosterone through different mechanisms. Zinc supports synthesis directly, while boron may affect free testosterone levels and estrogen metabolism. Boron also demonstrates anti-inflammatory effects, which may further support the hormonal environment.
Always consult with a healthcare professional before starting any new dietary supplement, especially if you have an existing medical condition or take prescription medications.
