Polyquaternium-104
INCI: POLYQUATERNIUM-104
Reviewed by Kate · Last updated 18 Aug 2026
What Is Polyquaternium-104?
Polyquaternium-104 is the polymeric quaternary ammonium salt formed by the reaction of hydroxyethylmethacrylate, acrylic acid, methacryloylpropyl dimethicone, and acrylamidopropyltrimonium chloride.
Its declared cosmetic function is hair conditioning.
Source: European Commission CosIng inventory.
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