What matters should be paid attention to when dyeing hair, and who should not dye hair?

Everyone loves beauty, especially girls. In addition to all kinds of cosmetics, beautiful clothes, shoes and bags, and fashionable and beautiful hair are also standard for girls who love beauty. Of course, now besides girls, boys also like to dye their hair, and some old people like to bake oil. After all, a shiny black hair looks young and energetic, and I remembered the joke, "We agreed to grow old together, but you secretly baked your hair."

However, there are many precautions in dyeing hair, and not everyone is suitable for dyeing hair.

1, it is best not to wash your hair before dyeing it.

Hair dye contains many additives, which are harmful to the skin, so it can't directly contact the skin. If you don't wash your hair, the grease and some skin debris on the scalp surface can protect your scalp. If it is inevitable to wash your hair, be careful not to shave your scalp with your nails. It's easier to scratch the scalp. Once you have a wound, if you accidentally touch the hair dye during the hair dyeing process, it will cause inflammation. Wash hair and scalp in time after dyeing, leaving no residue.

2. Hair dyeing interval should not be less than 3 months.

It is best to dye your hair at intervals of more than 3 months, generally depending on the quality of your hair. Because the hair dye contains a decoloring agent, this ingredient is very harmful to the hair scales. After the hair scales are damaged, the hair tends to become dry and easy to break. Frequent dyeing of hair will make hair very fragile, and any repair is irreparable.

So who is not suitable for dyeing hair?

1, allergic to hair dye.

Hair dye contains many chemical components. It is recommended to have a skin test 3 days before dyeing. If you are allergic, dyeing your hair is not recommended.

2. People with head injuries.

If you have a head injury or a scalp wound, it is not recommended to dye your hair, because the hair dye will stimulate the wound, not only causing inflammation, but also absorbing harmful substances in the hair dye.