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.
NoneVitaminVeganEvidence: Medium
BenefitMinimal 1 / 4
Barrier support
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)
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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.
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