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What harm does exposure of Japanese hair dye carcinogen often dye hair to the body?

There are many kinds of Japanese products with powerful functions and affordable prices, which are popular with consumers. Recently, consumers familiar with the big brand was exposed hair dye carcinogenic news, causing public panic. For the girls who often dye and perm their hair, for their own health, they should avoid dyeing their hair often!

Japanese hundred yuan stores sell goods of 100 yen, about 6 yuan, with its practical, inexpensive characteristics, with a wide range of consumer groups. But recently, daichuang, a well-known chain of hundred yuan stores in Japan, caused consumers' unease when a hair dye product sold by daichuang was exposed to contain carcinogens.

The company recently announced that formaldehyde, a carcinogen, has been found in a long-term popular hair dye in nearly 1000 stores. In Japan, it is expressly prohibited to add related substances to beauty products.

The product has been widely sold in Japan since 2012, with the recall reaching about 2 million.

Hu Yisheng, special reporter of financial channel: in a Dachuang hundred yuan store near Shibuya Station in Tokyo, all the related products have been taken off the shelves, and an apology statement has been posted in the store to inform consumers about the situation.

In addition, Dachuang recalled another 75 cosmetics sold in its store almost at the same time due to the discrepancy between the ingredient mark on the package and the actual content. It is reported that the recalled products are the exclusive products of Dachuang. Although it is not found that consumers have any physical discomfort after using the cosmetics, the manufacturer suggests to stop using the products immediately.

The head of the public relations department of daichuang said that none of the products involved in the recall were sold in China. At present, Chinese consumers who have purchased relevant goods in Japan are unable to complete the return procedures in China and need to send the goods back to Japan.

It has been pointed out that as one of the most important forms of Japanese retail industry, hundred yuan store chain enterprises mostly cooperate with a large number of suppliers in the way of joint research and development of goods, and participate in production management and quality control and other links. Therefore, in this kind of event, except for manufacturers, retailers also bear an unshirkable responsibility.

Permanent hair dye is the most commonly used and important kind of hair dye, which is also the most harmful to health!

It usually has two tube components (A and b). Tube a is mainly dye intermediate and tube B is mainly oxidant. The two are mixed when used.

It does not use dyes, but dye intermediates, such as phenylenediamine (dyed golden), p-phenylenediamine (dyed brown and black), m-phenylenediamine (dyed purple). Among them, p-phenylenediamine is the most commonly used and the most concerned ingredient for the hidden danger of hair dyeing products!

01. Carcinogenesis

The American Cancer Society has found that people who repeatedly use hair dye for a long time are more likely to suffer from uterine cancer and lymphoid cancer. Hair dye has carcinogenic effect on human body.

Some foreign studies also show that the incidence of breast cancer, skin cancer and leukemia will increase in people who often dye their hair. This is related to the fact that oxidized hair dyes contain many harmful substances, such as aromatic amines, aminophenols and hydrogen peroxide.

02. Kidney injury

There are few reports and studies on the chronic renal injury caused by phenylenediamine, and the cause and effect of the two can not be obtained directly.

However, the existing research shows that long-term exposure to phenylenediamines may lead to chronic renal damage, such as oliguria, anuria, proteinuria and creatinine rise, and at the same time, it will aggravate the existing glomerular diseases.

03. Allergy

In 1939, p-phenylenediamines were first defined as strong allergens, which are the most common antigens causing hair dye dermatitis.

Some sensitive individuals have acute allergic reactions, such as dermatitis, urticaria, asthma, even fever, chills, dyspnea and other serious reactions.

Therefore, in order to emphasize the safety of some hair dyeing products, the label of the products is specially marked with the words "without p-phenylenediamine". In fact, even if this kind of hair dye does not contain p-phenylenediamine, there will be other dye intermediates, which is also a potential safety hazard.