Opalescence45% Syringes Teeth Whitening Gel - with PF - (4 Syringes) Refill Kit Carbamide Peroxide. Made by Ultradent, in Mint Flavor. Tooth Whitening 5359-2

Dentist highly recommended. Whitens my teeth, love it 😊

These work well for me. My tip is do not use this if you have any kind of cut on your gum, it will burn! It will look like white patches on your gum. So brush very carefully and lightly if you do before using. Other than that, i'm used to the sensitivity if I wear them for 1 hour per day for 2 consecutive days or more.

I was very surprised how great this product is. You don't need a lot of the gel. A small amount does the trick. I used it for about 20 minutes 2 times a day and I stopped at the end of the 3rd day. The results were amazing. I was very careful not to place the gel to high in the mouthpiece and keeping it away from my gums. No issue's, just go slow.

Good product.

The consistency isn't good, I'm not sure why. As soon as I opened a strong product went flying out. Then any time I push to get product out, too much comes out. The product just balls up and it's hard to put it where you want it. You definitely need trays to keep the product off of your gums. I will say, It is very potent and it works! I am extremely happy with the results

My wife and I used the 45% twice in a week, and we are pleased with the results. For each session, we kept it for about 1 hour. Highly recommended.

Works fast!

Top tier whitening, won’t use longer then 30 mins per use. can cause tooth sensitivity, if sensitivity occurs use sensodyne toothpaste