Using Over the Counter Whitening Gels
Whitening gels are clear, peroxide-based gels applied with a small brush directly to the surface of your teeth. Instructions generally call for twice a day application for 14 days. Initial results are seen in a few days and final results are sustained for about 4 months. The retail cost for this product is about $15 for a 14-day treatment.
This best diy tooth whitening involves using a whitening gel, which is placed in a tray that fits over the teeth and helps to make the tray feel more comfortable. A key ingredient in this diy tooth whitening gel is carbamide peroxide.