Biotin
Ingredient Facts
Biotin
Synthetic · ANTI-SEBUM
Synthetic
Skin Conditioner
Hair Care
B Vitamin
Not Clean
1H-Thieno[3,4-d]imidazole-4-pentanoic acid, hexahydro-2-oxo-, [3aS-(3a.alpha.,4.beta.,6a.alpha.)]-
CAS #
58-85-5
See origin →
Functions
ANTI-SEBUM
HAIR CONDITIONING
A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.
SKIN CONDITIONING
A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.
Concentration Guide
Industry Max
Industry typically uses up to 2.0% in leave-on products (365 products reported). Source: CIR Safety Assessment (CIR Seq 745).
Biotin
Cosmetic Ingredient Review (CIR) Expert Panel
International Journal of Toxicology
Final Report on the Safety Assessment of Biotin
Cosmetic Ingredient Review (CIR) Expert Panel
International Journal of Toxicology
Allantoin Biotin
European Commission
EU Cosmetic Ingredient Database (CosIng)
Biotinoyl Tripeptide 1
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
Selection of oral microbial adhesion antagonists using biotinylated Streptococcus sanguis and a human mixed oral microflora.
Guan YH, de Graaf T, Lath DL, Humphreys SM, Marlow I et al.
Archives of oral biology, 2001
A Review of the Use of Biotin for Hair Loss.
Deepa P Patel, Shane M Swink, Leslie Castelo-Soccio
Skin appendage disorders, 2017
A Review of the Use of Biotin for Hair Loss.
Deepa P Patel, Shane M Swink, Leslie Castelo-Soccio
Skin appendage disorders, 2017
A Review of the Use of Biotin for Hair Loss.
Deepa P Patel, Shane M Swink, Leslie Castelo-Soccio
Skin appendage disorders, 2017
Verified Jun 2026
Data: CosIng