Contains: 2 x 0.96ml Venus White Max Hydrogen Peroxide 2 x 0.24 Venus White Max Activator with Potassium Nitrate 1 x 1.2ml Gingival Barrier 7 x Black Mini Tips For professional use only In-office Whitening Three or four 15-minute treatments with 38% hydrogen peroxide gel Syringe-to-syringe mixing chemically activates the product, ensures a thorough mix and provides maximum freshness Contains potassium nitrate which helps decrease sensitivity associated with bleaching Follow in-office treatment with Venus White Pro custom take-home whitening or Venus White Ultra pre-filled, disposable whitening trays for best results Venus Comfort Gel is available separately and contains potassium nitrate and potassium fluoride