OpalescenceTM GoTM - Khay tẩy trắng đổ sẵn - Hydrogen Peroxide 10% & 15%

The prefilled trays are so convenient—no messy mixing or syringes to deal with, just pop them in and go about my evening. I used the 10% strength for a week and could already see a noticeable difference in my smile's brightness before switching to the 15%.

I was honestly skeptical about doing whitening at home, but these prefilled trays were mess-free and the 15% strength actually made a visible difference after just three days. The trays stayed put comfortably for the full 30 minutes, which was a nice surprise.

The prefilled trays are so much easier than fiddling with strips that never stay put. I noticed a real difference in shade after just a few uses, and the 15% strength didn’t make my teeth overly sensitive like I feared.