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Biotin

Biotin (vitamin B7) is a water-soluble B vitamin that plays a key role in the normal metabolism of fats, carbohydrates, and proteins. It is also associated with supporting normal hair, skin, and nail health, and is a popular inclusion in beauty-focused nutritional supplements.


Biotin is a widely used ingredient in hair, skin, and nail formulas and is associated with supporting normal keratin production — the structural protein of these tissues. Importantly, high-dose biotin (at high doses) may interfere with certain common blood tests including thyroid panels.

It is advisable to discuss biotin supplementation with your healthcare provider and to mention it before any blood draw.