Our dental powder contains menthol， potassium citrate and hydroxyapatite. It oxidizes tooth stains with the active whitening ingredient PAP to provide whitening effective results without sensitivity， gum irritation or tooth enamel corrosion. The way to use it is very simple: Method 1: Use without toothpaste， wet the toothbrush and shake off the excess water. Dip the toothbrush into the powder jar so that the bristles are evenly coated. Brush thoroughly for 2 minutes. Drain and gargle after use. Method 2: Wet the toothbrush with toothpaste， shake off excess water， and then apply the toothpaste to the toothbrush. Gently dip the toothbrush into the jar of toothpaste powder so that the toothpaste is evenly coated. Brush thoroughly for 2 minutes. Drain and gargle after use. Make your teeth whiter and make you a more confident person.