The Hydrocolloid Patch contains: CMC Carboxymethyl Cellulose (Cellulose Gum), Styrene/Isoprene Copolymer, Homopolymer, Hydrogenated Rosin, Paraffinum Liquidum (Mineral Oil), PET, Niacinamide, Sodium Hydroxide, Sodium Hyaluronate, Pentaerythritol Tetrakis and Oligopeptide-10