One way to use hydrogen peroxide is as a mouthwash before ... teeth right after eating, and keeping their toothbrush for too long without replacing it. There are several natural methods to help ...

but you bite into them rather than adhere them to the front of teeth. Most trays come prefilled with whitening gel — if not, you’ll need to fill them with gel before a treatment. While ...

“For those that wish to whiten their teeth at home, I would recommend you brush your teeth before applying any whiteners ... delivering visibly whiter teeth after just one 15-minute treatment ...

After just ten applications, it is guaranteed to whiten up to six shades ... but I drink coffee every morning before work. I don’t think I realized how dark my teeth had gotten until I started ...