Removes 10 years of stains in just 3 days. Whiter teeth in just 1 day when used as directed. Our highest level of hydrogen peroxide in an over-the-counter whitening toothpaste.

“Some toothpaste have abrasive particles, which can remove superficial stains but can damage tooth structure over time. One brand that I recommend is Colgate Optic White because it ranks well on the Toothpaste Abrasive Index and whitens with hydrogen peroxide.”

Propylene Glycol, Calcium Pyrophosphate, PVP, PEG/PPG-116/66 Copolymer, PEG-12, Glycerin, Flavor, Hydrogen Peroxide, Sodium Lauryl Sulfate, Silica, Tetrasodium Pyrophosphate, Sodium Saccharin, Disodium Pyrophosphate, Sucralose, Phosphoric Acid, BHT, Water.

After less than 5 days of consecutive use, my teeth had a noticeable white shine to them in comparison to the non-whitened teeth. It works exceptionally well with stains, but it takes slightly more time with discolored teeth. With all that being said, the biggest drawback is that it is not very easy to use.

Contains clinically proven technology to safely remove surface stains. Enamel-safe teeth whitening, that's good for daily use.

Also if they contain peroxide for the bleaching action that it has for whitening, it will eventually cause more erosion of the outer layer and hence sensitivity and weakening of tooth structure. Prolonged use can lead to sensitivity which is evident in your case.

For optimum whitening results patients should refrain from eating and drinking for 30 minutes after treatment.

Indications and Usage. Intended use: The Colgate(R) Optic White(R) Professional system is intended for at-home teeth whitening. The full at-home procedure includes 35 applications, or 3-7 treatments of 5-10 days each.

In general, it's recommended that you wait at least 30-60 minutes after teeth whitening before you eat or drink anything other than water, the same as you should wait to eat or drink anything for about 30-60 minutes after brushing your teeth.

For optimum whitening results patients should refrain from eating and drinking for 30 minutes after treatment.

between 24-72 hours In general, you should avoid foods that are likely to cause re-staining or irritate sensitive teeth. After a short time you can resume a normal healthy diet, normally between 24-72 hours.

Yes, you are able to eat and drink following teeth whitening treatment. However, we do recommend following a strict diet for a few days after treatment, being careful to avoid certain foods and beverages that are likely to severely stain your teeth.