Polyurethane-91
A cosmetic ingredient used as film forming in skincare, haircare, and personal-care products sold in the European Union.
What is it?
Polyurethane-91 is a urethane polymer formed by a multi-step process. First, a polyester is made by reacting Hexanediol with Dimethyl Carbonate. A mixture of this polyester, 3-dimethylamino-1,2-propanediol and 1,4-Butanediol is reacted with Isophorone Diisocyanate. The polymer is neutralized with Lactic Acid.
What does it do?
Polyurethane-91 is listed in the EU cosmetic ingredient inventory with the following declared functions:
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Film forming
forms a thin continuous film on skin, hair, or nails — used in long-wear makeup, sunscreens, and hairsprays
EU regulatory status
Polyurethane-91 is allowed for use in cosmetic products in the European Union under Regulation 1223/2009. It is not subject to a specific Annex restriction at the time of writing.
Frequently asked questions
What is Polyurethane-91?
Polyurethane-91 is a cosmetic ingredient catalogued in the EU CosIng database. Polyurethane-91 is a urethane polymer formed by a multi-step process. First, a polyester is made by reacting Hexanediol with Dimethyl Carbonate. A mixture of this polyester, 3-dimethylamino-1,2-propanediol and 1,4-Butanediol is reacted with Isophorone Diisocyanate. The polymer is neutralized with Lactic Acid.
Is Polyurethane-91 allowed in cosmetics in the EU?
Yes. Polyurethane-91 is allowed for use in cosmetic products in the EU under Regulation 1223/2009.
What does Polyurethane-91 do in cosmetic products?
Polyurethane-91 is declared in the EU cosmetic ingredient inventory with these functions: film forming.
Related ingredients
Source: EU CosIng database (European Commission). This page is derived from public-sector information published by the European Commission. · Last updated: 13/05/2019