POLYURETHANE-21 is graded B (Low Concern) by Expert·ING, based on COSING regulatory data. It is restricted under EU COSING — AnnexIII-CONCENTRATION-.
POLYURETHANE-21
Safety grade: B
This is a synthetic plastic-like substance that forms a thin, flexible layer on your skin or hair. It's similar to the material used in flexible plastics and coatings found in everyday products.
It creates a protective film on the skin or hair surface that helps lock in moisture, improve texture, and provide a smooth, lasting finish to cosmetic products.
Graded using: COSING.
- EU COSING — Restricted
Last verified: May 26, 2026
Other Film Forming ingredients
- CELLULOSE GUM — Grade A
- GUAR HYDROXYPROPYLTRIMONIUM CHLORIDE — Grade A
- POLYQUATERNIUM-7 — Grade B
- POLYQUATERNIUM-10 — Grade A
- HYDROXYETHYLCELLULOSE — Grade A
- ACRYLATES COPOLYMER — Grade A
- MALTODEXTRIN — Grade A
- CERA ALBA — Grade A