To help you not to confuse the different types of gels and their function, you can already notice a visual difference. WHITECARE tooth whitening gels are pearly white for those with 0.1% hydrogen peroxide and transparent for those with 16% carbamide peroxide. The WHITECARE remineralizing gel is blue. Besides the difference in color, it is important to keep in mind that the remineralizing gel does not have a whitening function. It can rebuild your enamel, but to get a bright smile, you should choose tooth whitening gels that contain whitening agents.