Biosil Basics® L-Cysteine CE is the paraben and phenoxyethanol free version of our original ingredient, Biosil Basics® L-Cysteine, which is formed from the reaction of the non-essential amino acid, Cysteine, and a highly reactive silicone.

INCI Name: Dimethiconol Cysteine
Ingredient Functions: Hair Conditioners
Ingredient Categories: Biosil Specialty Silicones