Biotin

Biotin is a B vitamin that plays a crucial role in various metabolic processes, including the metabolism of fats, carbohydrates, and proteins. It is often associated with supporting healthy hair, skin, and nails. While essential for overall health, its topical benefits are less established than its dietary role.

BenefitMinimal 1 / 4

Barrier support i0.5 / 4

Whether it supports the skin barrier — restoring lipids, reducing water loss, aiding barrier repair, or strengthening the skin’s protective function.

RiskLow 0.5 / 4

Rated by SpottyLabs' ingredient methodology, independent of brands.

What it helps with

• Supports healthy hair and nails (ingested)
• Essential for metabolic functions (ingested)

Things to watch

• High doses may interfere with certain lab tests (ingested)

Products with Biotin

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Frequently asked questions

What is biotin used for in cosmetics?

Topically, biotin is often included in hair and nail products with the aim of strengthening them, though scientific evidence for significant topical absorption and efficacy is limited. Its primary benefits are seen when ingested.

Can biotin improve hair growth?

When ingested, biotin can support healthy hair growth, particularly in individuals with a biotin deficiency. However, for those without a deficiency, evidence for significant hair growth improvement from supplementation is less conclusive.