Deep whitening: The toothpaste is formulated to target and remove dark stains on teeth, providing noticeable whitening results. Enamel-safe: Despite its powerful whitening properties, the toothpaste is enamel-safe, ensuring that it doesn't compromise the integrity of the teeth. Hydrogen Peroxide: The inclusion of 2% Hydrogen Peroxide enhances the whitening process, helping to break down and remove stubborn stains effectively. Optic White technology: Leveraging Colgate's Optic White technology, this toothpaste aims to provide professional-level whitening results in the comfort of your own home. Overall, Colgate Optic White Expert Stain-Less Toothpaste seems like a promising option for those looking to brighten their smile and tackle stubborn stains effectively.