Tallow dihydroxyethyl betaine (inci)

"Tallow" refers to components from animal tallow (bovine tallow ), "betaine" (also called trimethylglycine or glycine betaine), is a quaternary ammonium compound with three methyl groups. Betaine is a derivative of the amino acid glycine and is formed as a by-product during sugar production from, among other things, the molasses of the sugar beet (Beta vulgaris, hence "betaine").
Tallow dihydroxyethyl betaine is used in cosmetic formulations. The substance mixture acts as a surfactant (washing-active substance; improves the even distribution of the products during application), as a substance with cleansing effect and as a foaming agent (increases foam formation and improves volume, structure and stability of the foam).