Polyquaternium-91 is a polymeric quaternary ammonium salt of hydroxypropyl methacrylate and polyethylene glycol methacrylate quaternized with ethyltrimonium chloride methacrylate

JCIA 표시명 ポリクオタニウム－９１: 本品は、メタクリル酸ヒドロキシプロピル、メタクリル酸ポリエチレングリコールとメタクリル酸エチルトリモニウムクロリドからなる４級アンモニウム塩の重合体である。

출처: Japan Cosmetic Industry Association labelling names

Other restriction: ban substances that deplete the ozone layer

출처: European Commission CosIng

Reviewed by CIR: Safety Assessment of Trimoniums as used in Cosmetics

출처: Cosmetic Ingredient Review