Colgate Advanced Whitening Toothpaste is clinically proven to whiten teeth in 14 days. It gently polishes and helps protect against future surface stains with the aid of micro-cleansing crystals.Directions for use: Brush thoroughly with a Colgate toothbrush, at least twice a day, or as directed by a dentist or physician. Children 6 years and under should only use a pea sized amount and should be supervised by an adult to minimize swallowing.