Colgate Optic White Overnight Teeth Whitening Gel Pen, 21 Whitening Treatments, 0.08 oz

This is NOT my first time purchasing this product. Colgate Optic Overnight Teeth Whitening Gel Pen is MY go to when I am looking for quick, easy, and effective teeth whitening. I have tried others. None work as well as this. I am HIGHLY SATISFIED with this product and will buy it over and over again. Thanks, Colgate, and thanks WALMART for making this product available at such a TERRIFIC PRICE and for promptly delivering it to my home SAVING me BOTH TIME and MONEY!

Only on day three and already a noticeable improvement. It's super easy to use, has no taste at all, and as way cheaper than having the dentist do it.

this product works great, I drink a lot of tea and it takes the stains off, but by morning my mouth feels really nasty from the product caking on my teeth.

After one treatment my teeth were whiter. After several treatments my whole mouth was whiter and brighter than they had been in years! I highly recommend Colgate Optic White. Love the product!

While this product works good at whitening, I had a somewhat hard time getting it to come out onto the brush after the first initial time I used it. I will use it again thought as it did whiten my teeth about 2 shades whiter.

Its hard to use, you can't really tell if it went on your teeth or not. Next day is hard to take off have to brush twice. Have not noticed extreme whitening, but some.

The first few days I used this product, I was very impressed. My teeth looked whiter and I was satisfied. Then the product turned really sticky and felt like…..you know when you get tissue stuck to your lips taking lipstick or chapstick off? It's exactly like that. I had to brush my teeth a few times to get all that mess out of my mouth. I really had high hopes because I've lived all other Crest products I've used before.

Had a minor stain on my two front teeth. It was embarrassing. Used this whitening pen as directed for over two weeks diligently until it ran out of fluid. It barely even lightened it. I was so disappointed. Thought a big brand like Colgate would be able to back up their big claims. Don't waste your money like I did. Avoid this product. I did find something that worked instantly and was much cheaper. I won't even charge you for the information; baking soda! I used baking soda with a toothbrush and my little stain was gone! Yeah, baking soda is abrasive. Yeah, don't use it daily… But the results with baking soda far outperformed this whitening pen and I didn't need to use it for weeks or have my heart crushed. This was just something to cushion my time until I can actually afford to go to the dentist. Long story short don't buy this pen, buy baking soda.

Ineffective for me. I read and followed the instructions and saw no change in color. I practice great oral hygiene, and no, my teeth are not stained. i just wanted them whiter. I love the colgate optic toothpaste so I thought I would love this too. Lastly, I think I previously accidentally posted the whitening kit review on the optic white toothpaste review.

Honestly, it's a little bit of a pain to use, but not impossible. However I think it does less whitening than the Colgate pro with hydrogen peroxide and it's twice as much. Wanted to try it bc I'm on a big whitening comparison trend with some friends and across the board we didn't like this one except for our one wine drinker in the group. So maybe ok for those with daily drinking stains?