
How professional whitening works
Whitening uses a controlled-strength peroxide gel that gently breaks down the molecules causing staining inside your teeth. Because the gel sits inside trays moulded precisely to your teeth, it works evenly across every tooth and stays away from your gums.
In the UK, only registered dentists are legally allowed to prescribe whitening at the strengths needed to actually work — anything stronger sold elsewhere is illegal and risky.


