Colgate Optic White O2 Teeth Whitening Pen is the first overnight whitening pen in the market. Apply the gel on your teeth before sleep, and wake up with a brighter smile! Easy-to-use, mess-free precision brush that gets your teeth 3 shades whiter in 3 weeks* while you sleep! It is gentle on enamel and designed for no tooth sensitivity.
Recommended usage: Use once daily for 3 weeks at night before you sleep (no food and drinks consumption after application). Brush it off in the morning during your usual brushing routine. If you choose to use the product during daytime, please avoid consuming any food and drinks within 4 hours after application for optimum result.
*In 3 weeks, for stains caused by food and drinks with continuous use. Individual results may vary.