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Biotin

supplement

Vitamin B7 — essential for hair, skin, and nail health. Deficiency is a common cause of hair thinning.

Conditions It May Help

Hair Growth

Biotin (vitamin B7) is essential for keratin production — the structural protein that makes up hair, skin, and nails. Bi...

★★★★★effectiveness

Where to Buy

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Sports Research Biotin 5000mcg

★★★★★4.7|$12-16

Check Price on Amazon

NOW Biotin 5000mcg

★★★★★4.6|$8-12

Check Price on iHerb

⚠️ Safety Information

Always consult your healthcare provider before starting any natural remedy, especially if you are pregnant, nursing, taking medications, or have a medical condition. Natural does not always mean safe — interactions with medications are possible.

Last reviewed: February 2026