Source: Boron RCT (Naghii 2011) — 6–10 mg/day raised free testosterone and lowered inflammatory markers over 1 week.
A trace mineral with outsized effects on hormones and bone.
Influences the metabolism of steroid hormones and minerals like calcium and magnesium.
Safe at low doses (3–10 mg). The upper limit is 20 mg/day — no need to exceed it.
| Per serving | |
|---|---|
| Typical branded single-ingredient product | $0.22 |
| Bulk powder at the clinical dose (250g citrate, $23.97) | $0.01 |
Buying bulk powder instead of a branded bottle saves about 95% per serving.
Bulk price: $23.97/250g →Educational only — not medical advice. Grades and clinical doses are computed from public labels against sourced research (citations on the main site); prices last verified 2026-07-21. Expensive Powder has no sponsors; bulk links may earn an affiliate commission, which never affects a grade. Talk to a clinician before starting any supplement.