... cool place. Best if used by date noted on package.PVP,PEG 8,Water,Hydrogen Peroxide,Acrylates Copolymer,Sodium Hydroxide,Sodium ... cool place. Best if used by date noted on package.PVP,PEG 8,Water,Hydrogen Peroxide,Acrylates Copolymer,Sodium Hydroxide,Sodium ...