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

Love this stuff, makes my teeth super white

I've used this product for years. Works greatHad always bought at dentist office, so I have the trays, last time I bought it there the price went to $50 for two tubes....this was 4 tubes for $40.57. The expiration date is Oct 2026 !

Whitens teeth to a long lasting beautiful smile. I have been using this product for several years. Highly recommend.

As a hygienist, I love this brand! We sell it in our office but only the 35% and at a higher cost with less product. I tell all of my patients to buy it through Amazon for that reason. I never recommend the 45% unless it's a savvy patient. Stick with the 35% if your new to it.

Working but will need few treatment this single treatment will not be enoughEasy to use just be gentle with syringeCan irritate gum so avoid getting it on it

Demasiado bueno me dejó los dientes hermosos y blancos me encanta el modo de aplicar debe de ser con mucho cuidado para no dañar tus encías gracias a este producto quité mis manchas de café desde hace muchos años me encanta ese producto gracissss me encantó lo súper recomiendo

It really whitened your natural teeth.

These do lighten your teeth, but not like movie star white. I use them with fitted trays I got from dentist. They do cause teeth sensitivity though so wait a few days in between uses. I wanted something a little stronger because I got the 35% from my dentist and it wasn't lightening like I'd hoped. These whiten a little better I guess, but again not as much as I wanted. Might get better with more uses.