Cosmetic ingredient

BETAINE

Betaine is a zwitterion, meaning an inner salt whose structure contains a trimethylated ammonium group and a carboxyl group. The chemical description therefore identifies a species with internal charges.

INCIBE6 products
CAS number
107-43-7/ 590-47-6
EC number
203-490-6/ 209-684-7
Chemical name
Methanaminium, 1-carboxy-N,N,N-trimethyl-, hydroxide, inner salt

BETAINE: what it is

Betaine is a zwitterion, meaning an inner salt whose structure contains a trimethylated ammonium group and a carboxyl group. The chemical description therefore identifies a species with internal charges.

BETAINE: what it does in cosmetics

In hair formulations, betaine is classified for hair conditioning. In skin care, its classifications combine skin conditioning with a humectant function.

Catalogue presence

Products containing this ingredient

See which products include it and the name used in each composition.