Colgate Optic White Express Teeth Whitening Pen with 35 Treatments, Enamel Safe, Designed for No Tooth Sensitivity, 0.08 oz

five stars because I have one veneer from a childhood accident. I needed to make sure I found a product that would be distributed evenly on real teeth as well as the veneer. This said safe for both..! I gave it a try as I drink ice tea and a lot of fresh blueberries. Complete change after the first use. So impressed I only had to use it three times. I wished I took a before & after pic. I def will if I do it again. No issue’s with teeth sensitivity like other products …. 😁

This Colgate Optic White Express Teeth Whitening Pen promised a brighter smile with 35 treatments, all while being enamel-safe and gentle. Unfortunately, my experience fell far short of those claims.After just *one* application, the pen became completely clogged, rendering it useless. Despite following the instructions carefully, the whitening gel simply wouldn't dispense. This effectively turned a product marketed for 35 treatments into a single-use item – and a highly disappointing one at that.Beyond the functionality issues, there were no discernible results after that initial use. I understand that significant whitening takes time, but even a slight improvement would have been encouraging. Sadly, there was absolutely no difference in the shade of my teeth.Ultimately, this purchase felt like a complete waste of money. While I was fortunate enough to receive a refund, the frustration and disappointment of a product failing so quickly are hard to ignore.**Pros:*** Enamel-safe (though I didn't get to experience the claimed benefits)* Money was refunded (Colgate customer service was responsive in this case)**Cons:*** Clogged after only one use* No noticeable whitening results* Feels like a waste of money* Product failed to deliver on its promises**Verdict:**Avoid this product. The Colgate Optic White Express Pen, in my experience, is plagued by clogging issues that make it unreliable and ineffective. While the prospect of quick and easy whitening is appealing, this pen simply doesn't deliver. Save your money and explore other whitening options.

I had hopes for this product but not so much. Doesn't work in 1 day like it states. I'm on my second day and not much change. I won't order again. So disappointed.

Whiten my teeth immediately and I drink coffee and smoke.. Some people are just slow. It isn't hard or confusing at all! Pump the pen and brush.. You'll see it's on there because it bubbles. Tips: I put a paper towel in my mouth and Vaseline on my lips for protection and I didn't want saliva touching the gel.. Get a white smile and keep it pushing..

This product is somewhat effective. It was able to whiten my teeth a little bit (not to the extent I want it to) but you have to apply it twice on the first day then once for 7 days straight for an hour, which can be tedious for busy people.

Waste of time and money. Have followed the directions precisely and no difference the first, second, or third day. Discontinued using after no more serum would come out. Frustrated with this product. Would not recommend!

This product is great. It dries down fast so it is comfortable to keep on. Follow the instructions and it works great!

I love this pen - it actually WORKS! Follow the instructions exactly and you WILL see a difference in your teeth even after the first use. But you have to keep it up at least every other week if you continue to drink coffee/tea/red wine etc. I did get some sensitivity after 3 uses, but it went away quickly. Another trick - make sure you put some vaseline on your lips and just inside of lips to keep it from burning your delicate lips/gums.