Will Purple Toothpaste Actually Give You a Whiter Smile?

Purple toothpaste uses color theory to cancel yellow tones for a temporary brighter look — but it’s cosmetic, not real whitening, and most skip fluoride. Here’s how it works.

Purple toothpaste uses color theory to cancel yellow tones for a temporary brighter look — but it’s cosmetic, not real whitening, and most skip fluoride. Here’s how it works.