Day White Excel 3 ACP 9.5% Teeth Whitening 3pk Kit (7.2mL total)

I've used DayWhite for at least eight years. The first two kits I bought from my dentist, which were around $200 each. I was so happy to find it online! It works fast, doesn't make my teeth sensitive, and people comment on their whiteness! I use trays which were custom made for me by the dentist, so I can't speak for how it works in do-it-yourself trays. To initially whiten, I used it twice a day for 30 minutes each; I drink a lot of tea, so, to keep teeth white, every eight months or so I just use it for 30 minutes a day for 3 days, and my teeth lighten up to the max! Great stuff!

I've used the lower dosage version of this product for a few years after getting started with it at the dentist's office. The whitening results are great, but after using this 9.5% gel for 20 minutes, I experienced intense, shooting pain in one tooth and had to remove the product before the recommended minimum of 30 minutes. It's strange because I do have one particular tooth that is quite sensitive, but that one did not bother me at all during the treatment and a tooth that has never bothered me reacted so strongly. I plan to continue using the 9.5% product in shorter intervals and hope to prevent further pain/sensitivity, but this may not result in good whitening.

In the future I will stick to the 7.5% strength, which caused only mild sensitivity with use. If you have sensitive teeth, you should definitely go with the weaker solution.

This is same product I bought from my dentist but half the price.I think it does a good job.You are able to control the amount of whitening by choosing when to stop when your teeth look the way you want.You do not get that artificial,chicklet look like can happen with the one time dentist whitening.The only downside is it slow and takes several weeks to get good results.