Meet our OG whitening formula that started the whitening craze 40 years ago and still whitens teeth 6 shades in 5 days (on average)! The secret to this formula is our exclusive Calprox® formula (which gently whitens and cleans without sensitivity) and the meticulous, 72-hour production process (versus just 3 hours for traditional toothpaste) that ensures the quality in every tube that no other toothpaste can give you. Made with clean ingredients that are safe, gentle and clinically-proven to whiten while promoting healthy teeth and gums — all without sensitivity. You do you, while we take care of the stains (no need to adjust your lifestyle or consumption habits!). Just brush!