Colgate Optic White Renewal Vibrant Clean Whitening Toothpaste is formulated with 3% hydrogen peroxide to remove 10 years of yellow stains with twice-daily brushing for 4 weeks. It aims to deeply whiten beyond surface stains while being enamel-safe for daily use. Key Features: Removes 10 years of yellow stains with the whitening ingredient dentists use. Proven to deeply whiten beyond surface stains. Enamel-safe for daily use. Colgate Optic White Renewal Toothpaste is designed to help rejuvenate and brighten your smile by effectively removing yellow stains and providing deep whitening. As with any toothpaste, it's important to use as directed and in conjunction with regular dental hygiene practices, including brushing twice daily and flossing. If you have specific concerns about whitening or oral health, it's advisable to consult with a dentist.