Source: Look at the News Network
(Original title: Uncle becomes a guy?! Be careful and magical “a black washing” will cause cancer) to cause cancer)
During the National Day holiday, people went out to travel, relatives and friends, and all hoped to have a good image. Some elderly people with older and white hair were used to enhance the “face value” by dyeing hair. Recently, a so -called “one -shampoo” product appeared, claiming that as long as you washed your hair, your hair can be blackened.
The product was very convenient to publicize it, and it would be dyed with hair when washing, and 30 minutes was enough. “One black washing” products often use “pure natural, chemical without chemical additives” as the selling point. Whether is it as a promotional saying, a question mark is required.
The difference between the two “one black washing” products is only ten yuan. Although the manufacturers are different, the bottle of the two products is almost the same. However, the positioning of the two products for itself is very different: “One Black” is labeled as shampoo, while “white turns black” is marked as hair dye cream. On the outsourcing of the two products, there are some hints of Chinese herbal medicine ingredients. A picture of a herb with black painting is used, and the “chemical composition” is marked. The words “lead non -toxic, natural extract, natural black” and so on are all showing their identity of their pure natural products.
However, it is strange that although both products claim to use pure natural formulas, there are text expressions of “advise consumers to use gloves” in the instructions.
In the experiment, we prepared a white wigs to verify the effect of two “one black washing” products. According to the instructions for use, the use of “one black washing” is about four times that of shampoo, and it can be rubbed during use. Subsequently, we applied the two products to the left and right sides of the wig cover, and waited for 20 minutes according to the instructions. Wash it with water.
The wig cover of the white hair passed through the role of “washing the black”, the entire hair was basically all black, and the reporter also left a dye -like thing. It seems that “one black washing” does have the effect of making white hair quickly black, and the whole process is much faster than conventional hair dyeing. However, is this product really “safe and reliable, natural extract” as the propaganda said? How does “wash black” achieve fast black hair effect? Look at what the professionals say.
Professor Jing Yanbi of the School of Chemistry and Chemical Engineering of Yangzhou University believes that the so -called “natural extraction” of “one black washing” product is suspected of false publicity. “It is not clear about what plants and animals are pure natural, and in its product composition, you can obviously see the diharamine, tetrazhamotics, and phenylphenols. These are traditional chemical materials for hair dyeing. “
According to Professor Jing, these three chemicals are applied to the hair, and the protein in the hair will react to produce black substances to achieve the effect of white hair and black hair. In the barber shop, hairdressing equipment is generally used to accelerate such chemical reactions through high temperature and light. However, in the “One Black washing” product, merchants have added hydrogen peroxide to act as a catalyst accelerated response. This is a speculative approach, completely setting up the safety of consumers.
Jing Yanbi: “It uses 50%hydrogen peroxide, which is quite serious to the human skin. If such substances are applied on the scalp, the scalp will be corroded first, so he will match you with a glove Protect your skin, but it cannot protect the skin of your scalp. Some carcinogens are caused by oxidation, so such a high concentration of hydrogen peroxide is very harmful to the human body. “
It is understood that the use of “one black washing” products, which leads to damage to the skin, has been exposed by CCTV and many domestic media. According to experts, the dihanramine in the “one black washing” product is a carcinogenic substance. my country has clear requirements for the dilate content in hair dye products, and must not exceed 6%. At present, regular hair dye products have long disabled such ingredients, and consumers need to be vigilant when buying.