Squalene is an unsaturated hydrocarbon oil previously obtained from shark livers but is now obtainable from vegetable sources. It has six double bonds, making it prone to oxidation and polymerization.
Fixative
Vinyl Caprolactam/VP/Dimethylaminoethyl Methacrylate Copolymer is a Polyvinylcaprolactam derivative used in alcohol-free styling products as a water-soluble film former and high-performance and exceptional fixative polymer with pseudo-cationic functionality.