ULTRADENT Opalescence 20% Teeth Whitening Refill Kit (4 Syringes) Carbamide Peroxide. Made by Ultradent, Unflavored. Tooth Whitening Refill Syringes - B-5402-2

Great results, little to no sensitivity

These are the only tooth whiteners that I use. At one time, I could not find them on Amazon and tried a different brand. It was awful. If you want your teeth whiten and not have an awful taste or film in your mouth after taking your tray out, you got to try these. They’re the only brand to use.

The syringe broke on 2 of them, gonna try 3rd one later. Would not buy again.

me encanto mas creo que debe venir con las cubetas, pero excelente producto

it works. but a little strong for me

They work as promised!

This whitener works great. Will be ordering it again.

I have used this product for years and usually purchase from my dentist. I don't feel that the product you sent was is good as it's supposed to be maybe the date is expired? It doesn't seem to be as strong as I have used 20% in the past

ممتاز ✅وصلني مغلق زين

It does the job but makes your gums very sensitive that it will be bleeding