Teeth Whitening Strips Ingredients: PVP, Glycerin,Hydroxypropyl Methyl Cellulose, Water, Alcohol, Phthalimidoperoxycaproic acid (PAP), Hydroxyapatite, Disodium EDTA, Sodium Chlorite, Sodium Hydroxide, Menthol, Hydrogen Peroxide PAP Pro Teeth Whitening Pen Ingredients: Water (Aqua), Glycerin, Cellulose Gum, Hydroxypropyl Methyl Cellulose, Phthalimidoperoxycaproic acid (PAP), Disodium EDTA, Sodium Chlorite, Menthol, Sodium Hydroxide, Hydrogen Peroxide