General Dosage
6-10mg orthosilicic acid daily; or 20-40mg silicon from horsetail extract
Maximum dose: No established UL; doses up to 50mg silicon daily appear safe in studies
Silica Dosage Guide
This content is for informational purposes only and does not constitute medical advice. Consult your healthcare provider before starting any supplement. Full disclaimer
Dosage Recommendations
General recommendation: 6-10mg orthosilicic acid daily; or 20-40mg silicon from horsetail extract
Timing: With or without food; consistent daily use for at least 12-20 weeks needed for visible results
Dosage by Condition
| Condition | Recommended Dose | Evidence |
|---|---|---|
| Skin elasticity | 10mg ch-OSA daily for 20+ weeks | Emerging |
| Hair and nail health | 6-10mg ch-OSA daily | Emerging |
| Bone density support | 6-12mg bioavailable silicon daily | Emerging |
Upper limit: No established UL; doses up to 50mg silicon daily appear safe in studies
Timing & Absorption
With or without food; consistent daily use for at least 12-20 weeks needed for visible results
Can be taken with or without food.
References
- Barel A, Calomme M, Timchenko A, et al. (2005). Effect of oral intake of choline-stabilized orthosilicic acid on skin, nails and hair in women with photodamaged skin. Archives of Dermatological Research. DOI PubMed
- Jugdaohsingh R, Tucker KL, Qiao N, Cupples LA, Kiel DP, Powell JJ (2004). Dietary silicon intake is positively associated with bone mineral density in men and premenopausal women of the Framingham Offspring cohort. Journal of Bone and Mineral Research. DOI PubMed
- Reffitt DM, Ogston N, Sherwood RA, et al. (2003). Orthosilicic acid stimulates collagen type 1 synthesis and osteoblastic differentiation in human osteoblast-like cells in vitro. Bone. DOI PubMed