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Silica (BioSil ch-OSA)

Collagen synthesis · hair · nails · bones

STRONG EVIDENCEVEGANREAD THE RESEARCH
Written to our editorial standards · reviewed against published research· Updated 2 Jun 2026
Last reviewed: May 30, 2026
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Silica: Collagen synthesis · hair · nails · bones. Activates the body's own collagen, elastin, and keratin synthesis enzymes. Strongest evidence for hair thickness and nail strength. Standard dose 10 mg choline-stabilized orthosilicic acid, taken in the morning, about $38/month. Evidence rating: strong evidence.

What is Silica?

BioSil is a patented choline-stabilized orthosilicic acid (ch-OSA) form of bioavailable silicon, the trace mineral the body uses to activate its own collagen, elastin, and keratin synthesis. Unlike collagen peptides, which provide raw building blocks, BioSil triggers the enzymes that build endogenous structural proteins. Placebo-controlled trials demonstrate significant improvements in skin elasticity, hair tensile strength and thickness, and nail brittleness over 5-9 months. Standard dose is 5-10 mg of ch-OSA per day. Look for the BioSil brand or the ch-OSA name to ensure you're getting the studied form.

WHY IT MATTERS

Activates the body's own collagen, elastin, and keratin synthesis enzymes. Strongest evidence for hair thickness and nail strength.

Natural food sources

Where possible, get Silica from whole foods first. Common dietary sources include:

OatsBananasWhole grainsLeafy greensCucumber

Where to buy

BioSil BioSil Hair Skin Nails
RECOMMENDED
BioSil, Silica
10 mg choline-stabilized orthosilicic acid · Morning · ~$38/month

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Common questions

What is Silica?
BioSil is a patented choline-stabilized orthosilicic acid (ch-OSA) form of bioavailable silicon, the trace mineral the body uses to activate its own collagen, elastin, and keratin synthesis. Unlike collagen peptides, which provide raw building blocks, BioSil triggers the enzymes that build endogenous structural proteins. Placebo-controlled trials demonstrate significant improvements in skin elasticity, hair tensile strength and thickness, and nail brittleness over 5-9 months. Standard dose is 5-10 mg of ch-OSA per day. Look for the BioSil brand or the ch-OSA name to ensure you're getting the studied form.
What is Silica used for?
Collagen synthesis · hair · nails · bones. Activates the body's own collagen, elastin, and keratin synthesis enzymes. Strongest evidence for hair thickness and nail strength.
What is the standard dose of Silica?
10 mg choline-stabilized orthosilicic acid, typically taken in the morning. Approximate cost is $38 per month.
How strong is the evidence for Silica?
Strong evidence for its primary uses. See the full study list on the research page.

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