What people hear most about dyeing hair is that dyeing hair can cause cancer. In fact, hair dyes cause cancer because they contain carcinogens.
Generally, almost all hair dyes that can be seen on the market contain chemical components, which are easy to cause cancer. Related research has long confirmed that some inferior hair dyes contain phenylenediamine, phenols, lead and other harmful substances, which will accumulate poisoning once used for a long time, which may lead to skin cancer and leukemia.
According to research, phenylenediamine and aminobenzene contained in hair dyes are potential carcinogens and mutagens. In addition, a study published in the International Journal of Cancer shows that women who use hair dye have a higher risk of breast cancer than women who do not use hair dye.
What kind of hair dye is the most harmful?
Although dyeing hair may cause cancer, many people disagree. Because of this, we need to know more about hair dyes and see which one is the most harmful to people's health.
There are three main types of hair dyes, namely synthetic hair dyes, natural hair dyes and inorganic hair dyes. Among them, inorganic hair dye, also known as black hair dye, is the most harmful to human health. Because this hair dye contains more heavy metal ions, such as lead, copper, iron and so on. Once people use this kind of hair dye frequently, it is very easy to cause heavy metal accumulation poisoning, aplastic anemia, system damage and so on.
The second is synthetic hair dye, which will cause ulcers and pigmentation after long-term use. Finally, natural hair dyes do the least harm to human body, but their coloring power is poor, so many people don't like to use this kind of hair dyes.