Carotene and vitamin B should be supplemented after perming

　　A perm reshapes the condition of the hair by changing the links between hair keratin proteins. Many people feel that their hair is dry, dull and dull after perming.

　　This is because during the process of perming, the alkaline components and oxidation in the potion destroy the hair cuticle on the surface of the hair, lose moisture and nutrients inside the hair, and denature the keratin of the hair.

　　Vitamin B12 can promote smooth blood circulation, improve the body's utilization of protein, and promote the growth and development of head cells.

　　Carotene can absorb ultraviolet rays and reduce the oxidation and discoloration of hair. Taking vitamin B and carotene together can make hair more moisturized and shiny.

　　People with allergies are more likely to suffer from perms skin allergies , Therefore, try to do an allergy test before perming to make sure there is no allergic reaction before perming.

　　The cycle of perming should not be too short, usually every three to six months. Pregnant women are best not to perm their hair, especially in the first three months of pregnancy, as it can easily cause fetus deformity.