New to the molecule? Start with what ch-OSA® actually is
For anyone weighing collagen support for skin, hair or nails

Silicon, Collagen and Your Skin, Hair and Nails: The Dermatology Hub

Your skin, hair and nails are largely built on collagen, and silicon is a cofactor your body uses to make it. This hub explains the ch-OSA® approach (generate your own collagen rather than ingest it), previews the peer-reviewed evidence with its limits, and points you to the four guides for skin, hair, nails and acne scars.

Updated June 2026Reviewed by the Biosil scientific team

Dermatology

Silicon, Collagen and Your Skin, Hair and Nails

Skin, hair and nails share one thing: they are built on, or held together by, collagen. Skin is roughly 70% collagen by dry weight, hair grows from a collagen-rich follicle, and the nail bed sits on connective tissue. When people reach for a supplement to firm skin, strengthen hair or harden nails, the real target underneath all three is the same protein.

Biosil® approaches that target differently from most collagen products. Instead of asking you to ingest collagen, it supplies ch-OSA® (choline-stabilized orthosilicic acid), a bioavailable form of silicon that acts as a cofactor your body uses to build its own collagen. The Biosil® position in short: generate your own collagen, do not ingest it. This hub explains where that idea holds up, where the evidence is thin, and which guide to read for your specific concern.

Where ch-OSA® fits, and where it does not

ch-OSA® supports your body's general collagen formation. That is a nutritional role, not a medical one. It does not treat, cure or reverse any skin, hair or nail condition, and it is not a substitute for a dermatologist. Treat it as background nutrition for the collagen scaffold, best used alongside good skincare, sun protection and, where needed, clinical care. New to the molecule? Start with what ch-OSA® actually is.

What the Evidence Actually Shows

Two peer-reviewed ch-OSA® trials are the ones most often cited for skin and hair. They are worth knowing about, and worth reading with a clear head about their limits.

  • Skin (Barel 2005). In women with photo-damaged facial skin, oral ch-OSA® over 20 weeks was reported to support skin elasticity and reduce roughness versus placebo, with lower brittleness scores for hair and nails as secondary findings.
  • Hair (Wickett 2007). In women with fine hair, ch-OSA® over 9 months was reported to increase hair tensile strength (elasticity and break load) and thickness versus placebo.

The honest caveat: both studies were small and were supported by the ingredient manufacturer, which lowers how much certainty you should read into them. They are suggestive, not conclusive, and neither shows ch-OSA® treating a disease. We keep the studies, their funding and their limitations in plain sight on the peer review page.

Where ch-OSA® fits: skin, hair and nails are built on collagen, and silicon is a cofactor your body uses to make it. ch-OSA® from Biosil® supports your body's own collagen formation generally. It is an adjunct to skincare and clinical care, not a treatment, and worth discussing with your clinician.

Explore the Dermatology Guides

Four in-depth guides sit under this hub. Each one is honest about where ch-OSA® can support general collagen nutrition and where it cannot do the work for you.

Related Biosil® Hubs

Silicon and collagen matter beyond skin. For surgical or aesthetic recovery, see the aesthetic recovery hub. For bone, gum and implant healing, see the dental hub. Both apply the same generate-your-own-collagen principle to a different tissue.

Sources

  • Barel A, et al. Effect of oral intake of choline-stabilized orthosilicic acid on skin, nails and hair in women with photodamaged skin (manufacturer-supported). Arch Dermatol Res. 2005. View source
  • Wickett RR, et al. Effect of oral intake of choline-stabilized orthosilicic acid on hair tensile strength and morphology in women with fine hair (manufacturer-supported). Arch Dermatol Res. 2007. View source
  • Reffitt DM, et al. Orthosilicic acid stimulates collagen type 1 synthesis and osteoblastic differentiation in human osteoblast-like cells in vitro (cell-culture study, not skin). Bone. 2003. View source
FAQ

Silicon, Collagen and Skin: Frequently Asked Questions

What practitioners and patients ask most about :

Can silicon or collagen supplements really improve skin, hair and nails?

The honest answer is nuanced. ch-OSA® provides bioavailable silicon, a cofactor your body uses when it forms collagen, the protein that makes up much of skin and supports hair and nail structures. Small ch-OSA® trials (Barel 2005 on skin, Wickett 2007 on hair) reported improvements in elasticity and hair strength, but both were manufacturer-supported and modest in size. Treat it as general nutritional support, not a cure, and discuss it with your clinician.

What is the difference between ingesting collagen and generating your own?

Eating collagen peptides gives your body amino acid building blocks. The ch-OSA® approach is different: you supply silicon, a cofactor your body uses to build its own collagen. Biosil®'s position is generate your own collagen rather than ingest it. Neither approach treats a skin condition; both are background nutrition alongside skincare and clinical care.

Which Biosil® guide should I read for my concern?

For loss of firmness and sagging, read the sagging skin guide. For thinning or fragile hair, the hair guide. For weak or splitting nails, the nails guide. For post-acne marks and texture, the acne scars guide. Each one explains where ch-OSA® can support general collagen nutrition and where it cannot help.

How strong is the evidence behind ch-OSA® for skin and hair?

It is suggestive, not conclusive. The peer-reviewed ch-OSA® studies are real but small and largely manufacturer-supported, which lowers certainty rather than proving an effect. We summarise them, with their funding and limits, on the peer review page. ch-OSA® supports your body's own collagen formation; it does not treat any dermatological disease.

Is ch-OSA® safe to take alongside skincare or medical treatment?

ch-OSA® has a long safety record (FDA GRAS status, positive EFSA opinions, decades of use) and is intended as an adjunct, not a replacement, for medical or dermatological care. If you are pregnant, under treatment, or taking medication, discuss any supplement with your clinician before starting.