DefinitionThis section has been translated automatically.
Quaternium (see also Polyquaternium) refers to complex quaternary ammonium compounds. Quaternary ammonium compounds, also called quats, have quaternary nitrogen atoms, i.e. all four hydrogen atoms of the ammonium ion (nitrogen atom) are replaced by organic residues. The compounds are therefore cationic, i.e. they have a positive charge.
The substance is used in cosmetic formulations. It acts as surfactant (washing-active substance; improves the even distribution of the products during application).
Prof. Dr. med. Peter Altmeyer