1, toothpaste, although the skin has a certain bactericidal effect, but on the skin pigmentation melanin and not play a role. Toothpaste contains ingredients that can produce "hydrogen peroxide", "hydrogen peroxide" can remove anaerobic bacteria in the oral cavity, so some people use toothpaste to treat acne skin and pigmented skin, which is not scientific. Because the toothpaste produced "hydrogen peroxide" on the skin has a certain scorching and stimulating effect, its level can not be artificially mastered, the use of excessive will lead to the destruction of the skin stratum corneum, that is, the destruction of the skin barrier function, so that the skin becomes sensitive to resist external stimulation of the ability to be poor.
2, toothpaste used in some people's faces can cause serious consequences, such as herbal toothpaste, someone allergic to a certain herb, it will lead to face swelling and other problems.