How we scored it
Where it comes from
Polyurethane-29 combines a petrochemical polyether glycol with hexamethylene diisocyanate, an aromatic diisocyanate (SMDI) and a synthetic tertiary amine. All monomers follow standard petrochemical polyurethane chemistry.
In plain English
A film-forming, conditioning polymer for hair products built from a synthetic amine, a petrochemical polyether glycol and two aromatic/aliphatic diisocyanates.
CosIng definition: Polyurethane-29 is a copolymer of methyl diethanolamine (MDEA), polytetramethylene ether glycol (PTMEG), hexamethylene diisocyanate (HDI) and saturated methylene diphenyldiisocyanate (SMDI)
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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-29. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
- 3POLYURETHANE-29. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=POLYURETHANE-29