Polyquaternium-7 is a multifunctional polymer and it is used in cosmetic formulations. Polyquaternium-6 acts as an antistatic (reduces static charges by neutralizing the electrical charge on the surface, for example of hair), as combability aid and as a film former (forms a film on skin, hair or nails when applied). This is because the molecules of the polyquaternium-6 is positively charged. They attach themselves to the (negatively charged) hair shaft during washing and care, and thus form on surfaces such on hair a coherent film (film former). This makes the hair appear smoother and easier to comb.