I got the 10% solution and I wish I had done one of the stronger options. It's slowly working, but for the same price, I'd definitely get the 15 or 20. My gums are fine and my teeth are not sensitive from the gel, but I might be concerned about the 35%. Ordering was easy.
Effective. Wearing this at night reduces the sensitivity and my teeth don't hurt when exposed to air. With the lower percentage, I do have to use this more often.
Since I have very sensitive teeth, the OPALESCENCE 10% has been great. If you can tolerate higher percentages that would work even better. Ive taken off a star because one order had a bad syringe of sticky gel that was very hard to press out and did not adhere to the dental tray or spread properly on the teeth. I understand quality-control issues can happen, but I sent two messages and was annoyed that no one even bothered to respond.
everything is good whitening.
Exactly as prescribed, pack of four. I used one and i got compliments the next day.