Extend-A-White Post-Whitening Mouth Rinse
Our new Extend-A-White Mouth Rinse helps you enjoy white teeth for longer. It has been proven in laboratory studies to reduce staining by up to 50%* and help repel the effects of staining, helping to protect teeth that have been whitened.
This first of its kind mouth rinse is designed to supplement and work with any form of whitening treatment including our strips, kits and toothpaste.
Find it with the rest of our Rapid White range in Boots
* Laboratory study conducted by J. Drozd and K. Huang, USA, 2017.