What's in it

Dosage per 2 Capsules: 38 mcg (1500 IU)
Dosage per 4 Capsules: 75 mcg (3000 IU)
Role: Vitamin D3 is crucial for maintaining optimal testosterone levels. Studies show that men with adequate vitamin D levels tend to have higher testosterone compared to those who are deficient.
Research:
- A 2011 study published in Hormone and Metabolic Research found that vitamin D supplementation significantly increased total testosterone levels in men with a deficiency. [Source]
- A 2020 review highlights vitamin D’s role in testicular function and its influence on androgen biosynthesis. [Source]

Dosage per 2 Capsules: 20 mg
Dosage per 4 Capsules: 40 mg
Role: Magnesium supports enzymatic reactions critical for testosterone production and reduces sex hormone-binding globulin (SHBG), thereby increasing free testosterone.
Research:
- A study in Biological Trace Element Research (2011) demonstrated that magnesium supplementation boosted free and total testosterone in both sedentary and athletic men. [Source]
- Magnesium also aids in reducing oxidative stress, which can impair testicular function. [Source]

Dosage per 2 Capsules: 15 mg
Dosage per 4 Capsules: 30 mg
Role: Zinc is essential for testosterone synthesis, as it regulates enzymes involved in androgen production. Zinc deficiency is directly linked to low testosterone levels.
Research:
- A study published in Nutrition (1996) revealed that zinc supplementation increased testosterone in men with a deficiency. [Source]
- Zinc also reduces aromatase activity, preventing testosterone from converting to estrogen. [Source]

Dosage per 2 Capsules: 300 mg
Dosage per 4 Capsules: 600 mg
Role: Fadogia Agrestis is a plant extract traditionally used to enhance libido and testosterone production by stimulating luteinizing hormone (LH) release.
Research:
- A 2005 study in Asian Journal of Andrology showed that Fadogia Agrestis supplementation in rodents increased testosterone levels and improved sexual behavior. [Source]
- While promising, more human studies are needed to confirm its efficacy and safety.

Dosage per 2 Capsules: 300 mg
Dosage per 4 Capsules: 600 mg
Role: Tongkat Ali (Eurycoma longifolia) is a potent adaptogen that supports testosterone production, reduces cortisol, and enhances fertility metrics.
Research:
- A 2012 study in Andrologia demonstrated that Tongkat Ali supplementation increased testosterone levels by 37% in men with low testosterone. [Source]
- A 2021 systematic review confirmed its effectiveness in improving male reproductive health. [Source]

Dosage per 2 Capsules: 250 mg
Dosage per 4 Capsules: 500 mg
Role: Ashwagandha (Withania somnifera) is an adaptogen known for its stress-reducing properties. By lowering cortisol, it creates a hormonal environment conducive to testosterone production.
Research:
- A 2019 study in The American Journal of Men’s Health found that KSM-66® Ashwagandha increased testosterone by 14.7% and improved muscle strength in healthy men. [Source]
- Ashwagandha also enhances sperm quality and motility, as shown in a 2013 clinical trial. [Source]

Dosage per 2 Capsules: 3 mg
Dosage per 4 Capsules: 6 mg
Role: Boron enhances free testosterone by reducing SHBG and increases vitamin D levels, which indirectly boosts testosterone production.
Research:
- A 2011 study in Journal of Trace Elements in Medicine and Biology showed that boron supplementation increased free testosterone levels by 28% in healthy men. [Source]