Active ingredient
Biotin
INCIBiotin
0.5% to 3%Typical concentration
Last reviewed by BIOSAR Scientific Team, PharmD, Cosmetic Chemistry, Pharmacy practice on .
What it is
Biotin is a water-soluble B-vitamin (vitamin B7) used topically in haircare for scalp products and conditioning treatments. It is a cofactor for carboxylase enzymes that participate in keratin precursor metabolism. Effective at 0.1% to 1% in cosmetic formulations. Topical evidence for hair growth is weaker than oral supplementation in deficient patients; cosmetic claims should stay conservative. No major conflicts.
Pregnancy and breastfeeding
Safe
Considered safe during pregnancy and breastfeeding.
Topical biotin is considered safe during pregnancy and lactation per Mother to Baby. Biotin is an essential nutrient with no known cosmetic-dose toxicity.
Mechanism in detail
What Biotin does
Vitamin B7, a building block the hair fiber relies on. Applied in leave-on hair and scalp formulas, it supports stronger, more resilient-looking strands and a healthier, more vital scalp.
From the BIOSAR catalog
