Our brushes contain hydroxyapatite, cellulose glue, aloe vera leaf extract. It can repair and whiten teeth, improve the surface shine; Soothe gums, relieve discomfort and protect oral health. Promotes gum health and provides additional oral protection. Its use method is very simple: open the teeth whitening pen, unscrew the right amount of product, evenly apply on the surface of the teeth. It keeps your teeth white for a long time and gives your smile confidence throughout the day.