How we scored it
Where it comes from
Built from a petrochemical cycloaliphatic diisocyanate, caprolactone/diethylene-glycol copolyester and dimethylolpropionic acid, salted with triethanolamine. No natural-origin route exists.
In plain English
A film-forming synthetic polymer used to coat hair or nails with a flexible layer. Every building block comes from petrochemical sources.
CosIng definition: Methylenedicyclohexanediisocyanate, polymer with 2,2-di(hydroxymethyl)propanoic acid and 2,2'-oxybisethanol/2-oxepanone copymer, tris(2-hydroxyethyl)amine salts
Natural alternatives with the same function
A sticky resin tapped from balsam fir trees, used for its piney scent and to form a thin…
Acacia Senegal Gum 100% natural originThe dried gum exuded from the acacia tree, collected by tapping the bark. Used to form a film…
Albumen 100% natural originEgg white. Used in cosmetics to form a film on skin or hair and to help condition them.
Amorphophallus Konjac Root Extract 100% natural originA root extract from the konjac plant that helps form a light film on skin and hair and…
Astragalus Gummifer Gum 100% natural originA natural plant gum, known as tragacanth, harvested from a Middle Eastern shrub. Used as a thickener and…
Aureobasidium Pullulans Ferment Extract 100% natural originAn extract of the liquid left after the yeast-like fungus Aureobasidium pullulans is grown on sugars in a…
References
- 1ISO 16128-1:2016 and ISO 16128-2:2017 — Guidelines on technical definitions and criteria for natural and organic cosmetic ingredients and products. ISO, Geneva.
- 2POLYURETHANE-21. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
- 3POLYURETHANE-21. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=POLYURETHANE-21