This whitening kit targets tooth enamel, providing noticeable whitening after seven days of consecutive use. Its convenient and easy to use. Its effects begin to be noticed from the first application. It contains sodium percarbonate, which reacts to light rays and acts to enhance tooth whitening. Its convenient and easy to use. After just one week of use, youll notice a truly visible change. Who is Lacer Blanc White Flash indicated for? Suitable for all those who want to keep their teeth clean and whitened. How do you take Lacer Blanc White Flash? Charge the splint by exposing it to sunlight or artificial light for 5 minutes. Brush your teeth with the preparatory dental gel and a toothbrush. Then, apply the transforming dental gel to the splint and wear it for 15 minutes. Use a maximum of once a day. Not recommended for people with inflamed gums or who are pregnant. The product has no effect on veneers, crowns, fillings, or bridges, only on natural teeth. It is recommended to keep this product stored in a cool, safe place away from small children. Depending on the color of the teeth, the effects will be more or less visible after the first application. Composition: Its formulation highlights: Water Glycerin Alcohol Sodium Laurel sulfate Sodium citrate Caffeine Citric acid Sodium benzoate Menthol Limonene Sodium carbonate