Compound Library

Supplement / Testosterone Support

Boron (as Boron Glycinate)

Trace mineral that reduces SHBG and increases free testosterone and free E2 within 1 week of supplementation. 6mg/day shown to increase free testosterone 25%+ in one study. Also improves vitamin D utilization and cognitive function.

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Educational reference only. This page does not diagnose, prescribe, or replace care from a licensed professional. Laws, availability, and clinical appropriateness vary by location.
Reference dose3–10mg elemental boron oral daily.
Half-life24 hours
Risk flaglow
Regulatory noteReview required

Side effects and watch-outs

  • GI upset at high doses
  • Nausea
  • Diarrhea
  • Very well tolerated at 3–10mg