Bamboo extract (silica)

Tier 3 — weak evidence · Hair · Nails · Bone

A plant source of organic silica marketed for hair, nail, and bone health. Contains higher silica concentrations than horsetail extract. However, very few human trials have tested bamboo extract specifically, and most claims are based on theoretical benefits of silica rather than direct evidence. Generally safe with no serious side effects reported.

Dose: 200–400 mg/day bamboo extract (70% silica); human trial evidence lacking