Gluten free. Keeps working after brushing (Whitens by removing surface stains and helps to prevent new stains between brushings). Alcohol free. High impact white. Effective peroxide formula. Actively whitens and seals out new stains (Whitens by removing surface stains and helps to prevent new stains between brushings). Enamel safe. Freshens breath. Does not contain ethanol. Save Water: Turn off the tap while brushing. www.colgateopticwhite.com. SmartLabel. App enabled scan for more information. 1-800-468-6502. www.colgateopticwhite.com. Cap sealed with printed band.