Best Silica for Skin
Top 2 products ranked
Last reviewed May 2026
Clinical dose: 5–30 mg
Why Silica for Skin
Silica plays a supporting role in skin. Trace mineral involved in collagen cross-linking, glycosaminoglycan synthesis, and bone mineralization. Population studies associate higher silicon intake (~40 mg/day) with greater bone mineral density. In clinical studies, silica promotes skin elasticity and reduces roughness.
What dose to look for
Clinical studies typically use 5–30 mg of silica. Clinical trials use 5–30 mg elemental silicon/day. ch-OSA studies typically use 6–12 mg Si/day for bone and 10 mg Si/day for skin/hair/nails. Products below this range may not deliver meaningful results.
What form to look for
Avoid silicon dioxide — minimal oral bioavailability. Avoid colloidal silica — poorly absorbed particulate form. Look for choline-stabilized orthosilicic acid (ch-osa) or orthosilicic acid for better absorption.
What the research says
Silica has moderate clinical evidence for skin benefits. A few clinical trials on bone and skin health, but evidence is limited to specific forms like ch-OSA Learn more
Clinical research on Silica (Silicon)
LOW — limited clinical data · 5–20 mg/day
- •Silicon is a component of glycosaminoglycans and may support collagen and connective tissue integrity in skin
- •Limited high-quality clinical data for skin-specific outcomes
