Active ingredient
Biotin
INCIBiotin
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. 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.
Where it helps
Concerns Biotin addresses
Aging
The first time you notice it is rarely a wrinkle. It is a quality of light — the way your skin catches it differently in a morning mirror,…
Explore the concernDullness
Dull skin is the visible loss of luminosity, where the surface appears flat, grey, or fatigued instead of light-reflective. The underlying…
Explore the concernHair Loss
For the months you have been finding more hair on the pillow than the comb. For the part line that has slowly widened. For the new mother,…
Explore the concern
From the BIOSAR catalog
