Engineered with patented biomimetic remineralisation technology, CRYSTAL repairs the mineral losts from the tooth enamel with its natural constituent formula, working against dental aging, protecting from cavities, reducing sensitivity and nourishing the teeth from the inside out. How to use Great for teeth that have been excessively bleached. For best results use CRYSTAL before bedtime and do not rinse with water. This extended action of the effective ingredients on tooth enamel will bring even better regenerative and anti-ageing results. Ingredients Aqua, Glycerin, Sorbitol, Hydrated Silica, PEG-8, Dicalcium Phosphate, Calcium Glycerophosphate, Poloxamer 124, Potassium Nitrate, Xanthan Gum, Aroma, Cocamidopropyl Betaine, Potassium Acesulfame, Hydroxyethylcellulose, Xylitol, Zinc Citrate, Papain, Aluminum Hydroxide, Mentha Piperita Oil, Sodium Chloride, Limonene, Lactose, Gaultheria Procumbens Leaf Oil, Eucalyptus Globulus Leaf Oil, Tocopheryl Acetate, Polyaminopropyl Biguanide, Tin Oxide, Mica, CI 77891, CI 77947.