Colgate Optic White Express Teeth Whitening Pen, 35 Treatments, 0.08 OZ

INGREDIENTS: Alcohol, Acrylates/Octylacrylamide Copolymer, Water, Hydrogen Peroxide.

See directions below. Click Uncap and click until serum appears. 1-2 clicks is enough for up to 4 teeth. It may take up to 20 clicks for serum to appear on the first use.
Apply after brushing your teeth with water, dry top row of your teeth with a tissue, then apply a thin layer of serum to each tooth, wait for 15 seconds for the clear coating to form, and then repeat on the bottom row.
 Whiten Leave the film on your teeth for 1 hour. Avoid brushing your teeth or eating (you can drink water). After 1 hour, remove the dried film by brushing your teeth with water.
 Repeat Repeat for a total of 3 applications on Day 1, and a total of 2 applications on Days 2-7
Clean After use, wipe the brush bristles with a dry tissue; do not use water. Close the cap tightly until you hear a "click" to avoid hardening of the tip.
If it hardens, do not rinse with water. Instead, click pen 2-3 times and the new serum will soften the bristles.

Flammable. Keep away from heat or flames. Do not use while smoking. Keep out of reach of children. Do not use with children under the age of 12. Do not swallow. If more than the amount used for whitening is accidently swallowed, get medical help or call a Poison Control Center immediately. Avoid contact with eye. If product contacts the eyes, rinse thoroughly with water. Avoid direct contact of the product with the gums and/or salivary flow. If irritation of the gums or mouth occurs, discontinue use and consult a dentist. Some people may experience tooth sensitivity or gum discomfort when using whitening products. This discomfort is temporary and not harmful. If you experience more than mild tooth sensitivity, stop use and consult your dentist.