To achieve a desired result, you should know a couple simple rules when choosing a whitening product. First of all, one of the main points is to check that the chemical composition of the whitening product contains at least 22 % of carbamide peroxide, which is the standard amount.
Saavutamaks soovitud tulemust, tuleks teada mõnda põhjasja,kui valid sobivat toodet. Esiteks, kõige tähtsam on see, et toode sisaldaks vähemalt 22% karbamiidperoksiidi, mis on ühtlasi ka standardkoguseks.