Colgate Optic White Renewal is our best whitening toothpaste ever. It contains 3% hydrogen peroxide, a professionally recommended whitening ingredient proven to deeply whiten beyond surface stains. With unprecedented whitening power, our 3% hydrogen peroxide formula removes 10 years of yellow stains* while being safe for enamel. Plus, the fluoride toothpaste formula helps to prevent cavities. Get a renewed, whiter smile with Colgate Optic White Renewal Whitening toothpaste. *when brushing twice daily for 4 weeks