Our V34 purple toothpaste contains sodium lauryl sulfate and cross-linked carboxymethyl cellulose. It can reduce yellow discoloration or stains, restoring a bright smile to teeth. It's gentle on sensitive teeth and gums without stripping enamel or irritating gums; it naturally neutralizes yellow in teeth, hiding stains, enhancing brightness, and freshening breath. Its usage method is very simple: take an appropriate amount of toothpaste on the toothbrush, gently brush teeth in circular motions from the inside out for 1-2 minutes, then rinse with water. Protect teeth and gum health, maintain teeth whiteness, relieve oral discomfort, say goodbye to tobacco stains and tea stains, hide stains, increase teeth brightness.