A cationic copolymer used for hair fixing.
What it is
Polyquaternium-55 is a cationic copolymer of vinylpyrrolidone, dimethylaminopropyl methacrylamide and a methacrylamidopropyl lauryl dimethyl ammonium chloride monomer. CosIng lists it as a hair-fixing ingredient.
Where it is used
Found in styling gels, mousses and other hair styling products.
Limits of interpretation
The INCI list shows which ingredients are present, not how much of each. Above 1%, ingredients are listed in descending order of weight; below 1% the order is free.
The INCI name does not show the proportions of the monomers or the molecular weight.
Functions
- Hair fixing
- Permitting physical control of hair style.
EU regulation
This ingredient is not listed in the annexes of Regulation (EC) No 1223/2009 in the CosIng data.