Tongkat Ali Clinical Research: Human Trials, Free Testosterone & Doses
Executive Key Takeaways (Answer-First)
- Human RCTs demonstrate 200 mg of standardized Eurycoma longifolia extract significantly elevates free testosterone.
- Eurycomanone stimulates luteinizing hormone and frees bound testosterone from sex hormone-binding globulin (SHBG).
- Clinical trials report a 16% reduction in cortisol and a 37% improvement in subjective sexual drive.
- {C.BRAND} delivers the full clinical 200 mg dose corroborated by peer-reviewed literature.
Botanical Origin and Bioactive Quassinoids
Tongkat Ali (Eurycoma longifolia Jack) is a slender evergreen shrub tree indigenous to Southeast Asia. While traditional folklore praised its roots for vigor, modern phytochemistry has identified its primary active principles: quassinoids (particularly eurycomanone), canthin-6-one alkaloids, and bioactive glycoproteins.
The Luteinizing Hormone and SHBG Mechanism
As men age, total testosterone declines while sex hormone-binding globulin (SHBG) increases, locking up biologically active testosterone. Clinical research indicates eurycomanone acts on the hypothalamic-pituitary-gonadal axis by down-regulating estrogen feedback, thereby increasing pituitary secretion of luteinizing hormone (LH). Concurrently, it inhibits SHBG binding, liberating free bioactive testosterone into serum circulation.
Key Human Placebo-Controlled Trials
In a landmark randomized, double-blind, placebo-controlled study led by Talbott et al. (2013) published in the Journal of the International Society of Sports Nutrition, subjects receiving 200 mg of Tongkat Ali daily demonstrated a 37% increase in subjective vigor, a 16% reduction in salivary cortisol, and significant improvements in tension and anger scores compared to placebo.
Clinical Dosing Alignment in {C.BRAND}
HorsePeak provides exactly 200 mg of standardized Eurycoma longifolia extract per daily gummy. This matches the exact dosing protocol utilized in landmark human trials, avoiding the sub-therapeutic micro-dosing common in inferior supplements.
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