Your natural tooth colour comes from tiny pigment molecules inside the tooth. The larger and darker these molecules are, the darker your teeth look. Whitening works by using peroxide gels to create “bleaching factors” that break apart these pigment molecules, making teeth lighter. But there’s a problem: saliva quickly neutralizes regular whitening gel, often stopping its whitening action within minutes.

KöR Whitening solves this by using specially designed KöR-Seal trays that block saliva from getting in. This lets the whitening gel stay active for 6-10 hours instead of the usual 20-30 minutes giving you deeper, longer-lasting whitening results.