The kit comes with a whitening pen filled with hydrogen peroxide gel that you brush over your teeth before using the light.

A professional dental appointment to brighten your smile isn’t always in the cards, which is one reason why the best whitening kits are highly popular among beauty lovers. Over-the-counter ...

Your beautiful, stunning, gorgeous teeth ... whitening journey—complete with whitening pens and dentist office visits—or just looking for low-key maintenance, Colgate's Total Whitening Gel ...