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

I of course, love to have white teeth, but my teeth are so sensitive that traditional strips will cause pain not just when I use them but for days after. therefore, I decided to give this pen a try. I will say it is not the most fun to use, but I got my system down. First, I take a piece of paper towel and stick that in my upper gum and completely dry my upper teeth. Then I apply the serum and I repeat on the bottom. After about a minute I take out the paper towel from my gums. I did have sensitivity for about three seconds on one of my bottom teeth when I used this, but it only lasted for those couple seconds and did not recur. I recommend also using Sensodyne toothpaste, which will help with sensitivity. I started noticing a difference in two days. Now I will just use it periodically here and there, but I love having this product and it really does work and you can use as much or as little as you want depending on how white you want your teeth.

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.

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.