Created by whitening experts, Colgate® Optic White® Pro Series Stain Prevention^ toothpaste contains our highest level of hydrogen peroxide in a tooth whitening toothpaste; 5%. Hydrogen Peroxide is the same whitening ingredient dentists use to whiten teeth. Feel It Working. Experience A Unique Warming Sensation as You Brush. It deeply whitens teeth from the inside out and is enamel-safe, removing 15 years of yellow stains* from your smile. It is safe for daily use, sugar-free, gluten-free, and vegan. Colgate® Optic White® Pro Series Toothpaste Provides Expert level whitening for a vibrant glow. Helps to remove stains from coffee, wine and soft drinks. Some people may experience tooth sensitivity or gum discomfort when using whitening products. This discomfort is temporary and not harmful. If you experience irritation or more than mild tooth sensitivity, stop use and consult your dental professional. Made in a recyclable tube.