Our whitening mouthwash contains xylitol, peppermint oil, and glycerin. It can penetrate deep into the enamel and break down stains deposited on teeth, making them whiter from within. Its usage method is simple: 1 Rotate the bottle cap to open the product; 2. Pour it into your mouth and start rinsing your mouth; 3 Rinse your mouth for 1 minute and then spit it out; 4 Use twice a day for 7 consecutive days for better results. Whitening Mouthwash comprehensively whitens teeth, relieves oral odor, provides long-lasting freshness, and protects gums and teeth