As we all know, dye hair marcel either to the scalp hair or is harmful to the body. So, in order to to minimize the damage, dye hair before shampoo? The question we must attach importance to. Now, let experts for you answer before don't wash your hair dye hair to hair and the other about some necessary knowledge.
In fact, dye hair before shampoo? About this problem, experts answer is: dye hair before had better not need a shampoo. Don't wash your hair dye hair day before had better, if want to wash your hair, it is best to catch hair shampoo for two or three days before. Because, this is, the principle of the hair dye hair is in the surface layer of hair scale slice open, so as to catch hair color particles can be smooth into the hair. The scalp is human body hair follicle most densely populated, hair coloring harmful material easily after hair follicles to human body in. Even if the hair and scalp no direct contact, will also through the volatile gases into the pathways to the body. So, need to use of the scalp grease to these harmful material form against, hair don't wash your hair before these oil layer washed away.
Experts, doctors say some ingredients in hair dye is poisonous. Its main of toxic material is refers to the benzene kind of composition. According to the health ministry cosmetics health standards committee, south China normal university professor QiuBingYi said, in our country at present of the cosmetics for hair between benzene 2 amine content standards, is the European Union in 2007 new control standards, and shall not add provisions between benzene 2 amine.
Had better not often catch hair, a year most that is 2-3 times, excessive frequently to the hair hair will cause great damage. In addition, dye hair of the time want to avoid direct contact with the dye to skin. If not be careful gush to immediately use vaseline daub or is clean.
The survey shows that in the market and into the possibility of cancer has hair dye. Even some emphasize "plant essence" of hair dyes also has cancer-causing potential. Although the hair colorings harm will is a little bit small, but no harm is impossible, because will contain make hair black of benzene 2 amine "element.
