Vo5 Curl Defining Mousse ingredients explained: Aqua (Water), Butane, Isobutane, Propane, Polyquaternium-4, Propylene Glycol, Vinyl Caprolactam/Vp/Dimethylaminoethyl Methacrylate Copolymer, Silicone Quaternium-16, Polysorbate 20, Cocamidopropyl Betaine,