Isobutylene/Sodium Maleate Copolymer

Isobutylene/Sodium Maleate Copolymer is a cosmetic ingredient used as a film forming, viscosity controlling agent. It is used in 2 products in our dataset. It is regulated in the EU (listed in a Cosmetics Regulation annex).

INCI nameISOBUTYLENE/SODIUM MALEATE COPOLYMER
FunctionFILM FORMING, VISCOSITY CONTROLLING
CAS number55031-88-4
Prevalence2 products (0% of dataset)
Most used inMakeup
EU statusRestricted (annex )

Used in

Eyeliners 50%Mascaras 50%

Frequently asked

What does Isobutylene/Sodium Maleate Copolymer do in skincare?
Isobutylene/Sodium Maleate Copolymer functions as a film forming, viscosity controlling agent in cosmetic formulas.
Is Isobutylene/Sodium Maleate Copolymer allowed in cosmetics?
Yes, but it is regulated in the EU — it appears in a Cosmetics Regulation annex with usage conditions.
What products contain Isobutylene/Sodium Maleate Copolymer?
It is most commonly found in Makeup products, especially eyeliners (50% of its uses).

Manufacturers with experience using Isobutylene/Sodium Maleate Copolymer

Match with vetted US contract manufacturers that have hands-on experience formulating with this ingredient.