What does it mean to smile from the inside out? Because we believe in the transformative beauty of real smiles Colgate-Palmolive is proud to introduce a revolutionary new beauty essential - Visible White O2. Formulated with a patented Active Oxygen-based tooth whitening technology it WHITENS TEETH IN 3 DAYS (when used as directed on pack). As soon as you brush Colgate Visible White O2 gives off a warming effect inside your mouth. Along with this it releases a gentle wave of ultra-fine whitening foam - that's the Active Oxygen. The millions of active oxygen bubbles get absorbed gently into your enamel and whiten teeth from the inside out! Available in 2 refreshing flavours: Aromatic Mint: Like a rushing mountain stream the freshness of this herby wintergreen mint gives a refreshing flavor that lasts. Peppermint Sparkle: Fresh bright with slight hint of spice this delightfully balanced flavor brings a long-lasting flavor that feels like your mouth is sparkling. Recommended Usage: Put a pea size amount of our Colgate toothpaste on the head of the toothbrush. Insert the toothbrush into your mouth & use gentle short s to brush your teeth. For a better experience try with Colgate Visible White O2 Toothbrush.