Our V34 Foaming Whitening Toothpaste contains sodium lauryl sulfate, sorbitol. It helps to remove stains, remove yellow stains. The way it works is simple: shake it gently to make sure the formula is well mixed. Apply 2 pumps directly to the mouth. Gargle for 15 seconds. After use, drain excess mouthwash and do not swallow. Keep your teeth healthy after use, and your teeth are getting whiter.