See http://safetoothwhitening.org/the-law/. Dentists are not allowed to use hydrogen peroxide at 22% because of the health risks and it is utterly illegal to sell these gels to the general public. Check with trading standards for the truth.
The owner has replied but dentists cannot legally use 22% carbamine peroxide either. The maximum they can use is 18%. However it is utterly illegal to sell over 0.1% to the general public because of the health risks. This trader is selling illegal gels to the general public that even dentists are not allowed to use. Google trading standards and teeth whitening for details.
This review is not valid. Failed to contact us. Kindest regards PDS Dental Group