When dyeing hair, the ammonia in the dye paste has a strong destructive effect on the hair scales on the hair surface. If it is not properly maintained, it will cause hair scales to fall off, lose water, be rough, have burrs, and lack luster and elasticity. It is a lot of people's troubles that the dyed hair is dull or the color is difficult to maintain.
Experts remind that no matter what kind of hair dye or its products are dyed, they generally contain toxic aromatic chemicals. Long-term use may damage the hematopoietic system of the body, or cause fetal malformation in pregnant women, and even lead to dermatitis, skin redness, itching, ulceration and so on. For the sake of health, it is natural to dye as little as possible or not.
Many people have allergic reactions to chemicals used for dyeing hair and perming hair, such as rash, dizziness and even redness and swelling of the skin. Therefore, we should pay special attention to prevent this allergic phenomenon. We can try it on the skin first. If you have redness and allergies, don't dye it.
People who dye their hair are 40% more likely to develop leukemia than those who don't.