The main hazards caused by daily hair washing are the following: 1, the hair loses its luster, shampoo has a variety of chemical synthetic substances, too frequent cleaning of the hair, but will lead to the loss of too much of the original oil on the hair, hair surface loss of protective layer, will not only lead to the loss of hair luster, but also lead to hard and brittle hair, affecting the normal beauty. 2, leading to the loss of nutrients hair follicles, once the infection inflammation The hair will seriously fall off, more likely to lead to baldness and hair loss, in addition to inflammatory cells deposited in the hair follicle, easily lead to folliculitis. 3, shampoo compounds substances will be deposited through the hair follicle in the human head skin surface, if improperly cleaned easily lead to the loss of nutrients in the root of the hair, in the long run easily lead to cellular lesions, mutations, but will cause cancer.