Polyquaternium-11 is a cloudy, straw-colored liquid. In cosmetics and personal care products, it is primarily used in the formulation of hair care products with limited use in other product types.
Polyquaternium-11 is the polymeric quaternary ammonium salt formed by the reaction of diethyl sulfate and a copolymer of vinyl pyrrolidone and dimethyl aminoethylmethacrylate. It is in the chemical class known as quaternary ammonium compounds (generally referred to as a “Quat”). These compounds are positively charged tetra-substituted nitrogen derivatives.
Polyquaternium-11 is available in two forms: approximately 50% Polyquaternium-11 dissolved in alcohol, and 19% dissolved in water with both forms referred to as “commercial Polyquaternium-11.” Pure, or undiluted, Polyquaternium-11 is not available for use in cosmetics and personal care products.
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