Colgate Optic White Express Teeth Whitening Pen, Enamel-Safe Tooth Whitening Applicator, Helps Whiten Teeth in As Little As 1 Day of Use, 7 Day Whitening Treatment, 0.08 fl oz

Colgate Optic White really works! I started seeing a difference after just a few uses. My teeth look brighter and feel super clean after each brush. It has a refreshing minty taste and doesn’t make my teeth sensitive like some other whitening products. Definitely a go-to if you want fast and easy whitening at home!

This is a winner, way cheaper than the dentist. But it does make your teeth sensitive if you have sensitive teeth.

The pen is very easy to use and convenient for on-the-go application. I liked how small and portable it is, making it easy to fit into my bag or use quickly during my routine.Unfortunately, the results did not meet my expectations. While the product claims to whiten teeth in as little as one day, I only noticed a very slight difference after several uses. Additionally, it made my teeth quite sensitive to cold water, which was uncomfortable. I would suggest improving the formula to be both more effective and gentler on sensitive teeth.This product has potential, but it didn’t work as well as I had hoped. While it might work better for others, it didn’t provide noticeable whitening for me and caused sensitivity. I would hesitate to recommend it unless the formula is improved.

So don’t get me wrong. The application works perfectly and starts to show results from use 1 which makes it more likely to complete the requisite 7 applications over 2 days.I just feel like the following 4 factors are something you should be aware of:1. Only works on the front 12 teeth2. Has a 1hr application time3. Not for the back of teeth4. Once opened, has a 30day shelf lifeIt’s because of these 3 factors that I wonder how much more ROI this gel has versus whitening strips that are more affordable and disposable (but a total nuisance).Having said that.. will I buy again when I eventually stain my teeth with coffee? YES.

Work well

Fast and effective- noticed results quickly

It didn’t do anything. I follow instructions, used it three times & it did nothing. I took before & after photos & there’s no difference.

It worked a little bit, but after 2 uses I started to notice the solution started to dry? it got gooey , like a gel. That made it more difficult to apply as it could not spread easily over my teeth. At the end I had to dispose of the product because there was no liquid left to apply, only a thick gooey substance that looked like dry silicone. I always kept the product closed after using it.