Back to Ingredient Dictionary

POLYQUATERNIUM-11

Description

Polyquaternium-11 is a versatile synthetic polymer widely used in cosmetic and personal care products. This cationic quaternary ammonium compound is primarily employed as a film-forming agent, hair conditioning additive, and fixative in various formulations.

The ingredient's molecular structure consists of a long chain of repeating units with positively charged nitrogen atoms, giving it excellent adhesion properties to negatively charged surfaces like hair and skin. Polyquaternium-11 forms a thin, flexible film that provides hold, adds body, and improves manageability in hair care products such as styling gels, mousses, and hairsprays.

In skincare formulations, Polyquaternium-11 functions as a conditioning agent and humectant, helping to improve skin feel and retain moisture. Its film-forming capabilities also contribute to the even distribution of other active ingredients in products like lotions and serums.

Polyquaternium-11 is generally considered safe for use in cosmetics, with good stability across a wide pH range. It is compatible with many other ingredients, making it a valuable component in complex formulations. The concentration of Polyquaternium-11 typically ranges from 0.1% to 2% in finished products, depending on the desired effect and product type.