It is very important to note that the use of tooth whitening gels is regulated by European legislation. If you want to perform a tooth whitening treatment at home, you do not have a choice in the dosage of the gels. You must use gels with 0.1% hydrogen peroxide. This dosage allows you to feel safe and avoid any irritation on your gums and teeth.
When gels are more strongly dosed, they must be used and sometimes prescribed by dentists.