Hair coloring will destroy the melanin of hair

According to "CCTV - Weekly Quality Report", hair dyes contain carcinogens that are harmful to health, and experts suggest that it's best to dye your hair no more than twice a year.

A patient, Ms. Han, who had been hospitalized at the Beijing Friendship Hospital, was diagnosed with acute lymphoblastic leukemia, and after three months of fighting the disease, she said goodbye to the world. Wang Zhao, director of the hospital's hematology department, said it was confirmed that Ms. Han had a history of regular hair dyeing for more than 10 years, which is closely related to the occurrence of leukemia. This is because hair dye contains a chemical called "p-phenylenediamine".

Some beauty salons claim that hair dyes are natural and plant-based, said Yan Xiuzhen, president of the China Hairdressing and Beauty Association, adding that almost all hair dyes on the market and in professional hair salons are chemical dyes, and that natural and plant-based hair dyes are virtually impossible to find on the market.

Experts pointed out that the hazards of hair dyes have nothing to do with whether the dyes are qualified or not, or whether the price is high or low. Hair dye allergy is also not determined by the brand or grade high and low, hair dye itself as long as contains "p-phenylenediamine", the chemical composition of the threat to human health will not disappear.

Q: I've dyed my hair many times, but I don't have any allergies or discomfort.

A: It is safe to say that with traditional chemical hair dyes, there are toxins present! Allergy is actually an external symptom of poisoning. Hair dye allergy is not terrible, due to hair dye allergy can reduce the number of times of hair coloring, the toxins are relatively reduced. The scary thing is that hair coloring is not allergic, there is no symptomatic reaction on the surface, and the toxins accumulate when the hair is dyed frequently. Hair dye in more than 20 kinds of harmful chemicals, through the human body transdermal absorption of 1%, it is possible to induce skin cancer, bladder cancer, kidney cancer, lymphoma, leukemia. Research at the University of Pennsylvania in the United States has shown that people who often use chemical hair dyes are 3.8 times more at risk of disease than normal people, and the frequent birth of deformed children by hair dyers in China is proof of the news. The accumulation of chemical toxins in the body is like a chemical reactor! Once the reaction is severe consequences!

Q: What is "aniline chemical hair coloring and perming products"?

A: By chemical hair coloring and perming products, we mean that aniline is used as a functional ingredient in hair dyes and mercaptoacetic acid is used as a functional ingredient in perms; it is well known that aniline and mercaptoacetic acid are poisonous (this can be found in any organic compounds handbook).

Q: I am an average hair color consumer, how can I tell if a product is an aniline-based chemical hair color?

A: 1, no manual must be toxic chemical hair dyes

2, there is a manual but labeled with aniline phenols such as diphenol, hydrogen peroxide, resorcinol, p-aminophenol, aminotoluene, trinitro-p-p-phenylenediamine, aminodinitrophenol and other aniline phenols and aromatic words are chemical hair dyes.

3, there are instructions, there is no aniline phenol word, but in the precautions labeled need to do allergy test, must be chemical hair dye.

Q: What are the specific manifestations of allergic reactions to the use of traditional chemical hair coloring and perming products?

A: traditional hair coloring products used in the main raw material aniline chemical substances with toxicity and strong sensitization, allergy manifested in local skin itching, pain, erythema, edema, pimples, blisters, severe cases will appear blisters, oozing, vesicles, and even systemic reactions.

Q: Frequent use of traditional chemical hair dyes will get blood disease, right?

A: Not for sure, but a high percentage. Experts have found that there is a definite relationship between hair coloring and blood disorders, and that the percentage of people who get blood disorders from frequent hair coloring is much higher than that of people who don't dye their hair.