Biotin

Biotin is a water-soluble B-complex vitamin (B7) used in cosmetics as a micronutrient cofactor and conditioning agent. Formulators include it in skin, hair, and brow products to support keratin-focused claims and offer label-friendly antioxidant presence.
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Ingredient Snapshot

Overview
Vitamin B7 added to support healthier-looking skin and hair.
Category
Skin Conditioning
Type
Skin Conditioning

Ingredient Ratings

Overall Rating

Fair

Comedogenic Risk

None

Skin Benefits

May help skin feel more resilient and look less dull by supporting surface vitality, and can contribute to a healthier-looking complexion when paired with supportive ingredients; topical benefits are modest with limited evidence.

Uses In Skincare & Cosmetics

Common in facial serums and moisturizers, as well as lash and brow conditioners, and also appears in scalp tonics and leave-in treatments.

Comedogenic Rating

This ingredient is not typically evaluated for comedogenicity, and no standardized rating is available.

Safety

Considered low-irritation for most, though mild sensitivity is possible. Patch test if you're reactive, and discontinue if redness or stinging occurs.

Is Biotin a Good Ingredient?

Topical biotin has limited clinical support for skin benefits, so its effects tend to be modest, which is why it's rated Fair. It's generally mild, but sensitive individuals could experience slight irritation.