How we scored it
Where it comes from
Polyurethane-5 is a polyester-urethane built from petrochemical glycols, adipic acid and isophorone diisocyanate. No monomer has a commercially significant natural-origin route.
In plain English
A film-forming polymer used in nail and hair products to create a flexible coating. It is made entirely from synthetic petrochemical building blocks.
CosIng definition: Polyurethane-5 is a copolymer of Hexylene Glycol, Neopentyl Glycol, Adipic Acid and isophorone diisocyanate monomers
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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-5. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
- 3POLYURETHANE-5. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=POLYURETHANE-5