Definition
Polyurethane-29 is a copolymer of methyl diethanolamine (MDEA), polytetramethylene ether glycol (PTMEG), hexamethylene diisocyanate (HDI) and saturated methylene diphenyldiisocyanate (SMDI)
Cosmetic roles
Leaves a thin film where appliedFILM FORMINGKeeps an emulsion from separatingEMULSION STABILISINGHolds hair in placeHAIR FIXINGSoftens hairHAIR CONDITIONING
Safety & regulatory references
Other restriction: ban substances that deplete the ozone layer
Source: EU CosIng ingredient list
Reviewed by CIR: Final Report: Safety Assessment of Polyurethanes as Used as Cosmetics
More data — names, identifiers, properties, test records, literature
Names & identifiers
POLYURETHANE-29INCI폴리우레탄-29Korean label name (MFDS standard)