iWhite Teeth Whitening Kit iWhite Teeth Whitening Kit whitens teeth by up to 7 shades for a brighter? healthier smile.Designed for an instant? professional results in the comfort of your own home? iWhite Teeth Whitening Kit is an innovative one-step system which actively removes stains and strengthens your teeth whilst delivering a natural whitening effect.Ingredients:Aqua? Hydrated Silica? Glycerine? Phthalimidoperoxycaproic Acid? Sorbitol? Chondrus Crispus Powder/ Hydrated Silica? Peg-40 Hydrogenated Castor Oil? Alcohol? Calcium Lactate Gluconate? Aroma? Methyl Paraben? Pvp? Xylitol? Sodium Hydroxide.Direction:Secure one of the prefilled? ready-to-use whitening trays over the teeth.Wait for 20 minutes.Remove and discard the prefilled? ready-to-use whitening tray.Use for 5 consecutive days for best results.