The Flash teeth whitening pen helps remove surface stains and discoloration caused by coffee, tea, smoking, and other factors. Designed to give you a brighter and whiter smile in the comfort of your home. Easy, effective, affordable, and can be used as a standalone or complement to professional teeth whitening treatments. Features: - A soft brush tip for precise application, allowing you to target specific areas on your teeth for optimal results. - The Flash teeth whitening pen offers an easy and convenient way to achieve professional-level results. - Quick and efficient, whitening at least two shades per single application. - Chemical-free and safe for daily use, gentle on tooth enamel. - Ideal solution for a brighter, whiter smile. - 16% Carbamide Peroxide. - Taste: Mint. - 4 ml/Pen.