The United States is banned, antibacterial bath products really so pit?

Recently, the U.S Food and Drug Administration (FDA) announced that antibacterial bath products containing specific active ingredients cannot continue to be sold on the market, because these products are not more effective than soap and tap water in preventing diseases and reducing the spread of infectious diseases, and may cause long-term health hazards The U.S Food and Drug Administration (FDA) which ingredients are included in these banned antibacterial bath products, and how much harm they do to human body, the reporter interviewed relevant experts Some antibacterial bath products are banned from sale in the United States The chemical substances banned by FDA include 19 kinds of halocarban, fluxaron, hexachlorophenol, hexyl resorcinol, etc The prohibition applies to antibacterial bath products containing one or more of the 19 specified ingredients, the two most commonly used of which are triclosan and Trichlorocarban The FDA said in the statement that although manufacturers claim that bath products with these ingredients have better germicidal efficacy than general bath products, they cannot prove that the long-term use of these chemicals is safe, nor can they prove that these bath products can prevent diseases more than general bath products, or prevent the spread of certain infectious diseases The chemical structure of triclosan (left) and triclosan (right) triclosan (dichlorophenoxychlorophenol), a broad-spectrum antibacterial agent, is widely used in soap, toothpaste and other daily chemicals Trichlorocarban, commonly known as trichlorocarbonylaniline, is a highly effective and broad-spectrum antibacterial agent, which has a highly effective killing effect on Gram-positive bacteria, Gram-negative bacteria, fungi, yeast, etc According to Dr Shi Chunlei of Sino US Joint Research Center for food safety of Shanghai Jiaotong University, the reason why these two substances are widely used in daily chemical products is not only because of their good antibacterial effect, strong removal effect on bacteria, fungi and viruses, but also because they are all aromatic antibacterial agents containing chlorine, which have good stability and are not easy to be affected by the environment and added ingredients And change There is no clear evidence for the harm of antimicrobial ingredients In fact, there are always doubts about these two substances According to FDA experts, animal experimental data show that the active antibacterial ingredients such as triclosan and triclosan, which are often used in daily life, may have side effects on hormones However, the FDA did not provide data and evidence that triclosan and triclosan are harmful to human body It is understood that the scientific community has discussed whether triclosan in toothpaste will cause cancer The most cited experiment is an experiment from Virginia University of technology According to the results of the experiment, the product containing triclosan can react with the tap water containing chlorine to form a substance called "colophon", i.e chloroform Chloroform was used as an anesthetic Animal experiments show that the substance can cause damage to the heart and liver, with mild teratogenicity, and can induce mice to develop liver cancer, but there is no research data on human carcinogenesis According to Shi Chunlei's analysis, the potential risk of triclosan and triclosan is that when these two substances are widely produced and used in human daily necessities, they will be discharged with the sewage after the product is used If the sewage is not properly treated, these two substances will enter the soil system, which may be absorbed by the root system of crops, and eaten by the human body after biological amplification To a certain amount, it will have adverse effects on the human body What is the effect of using bath products containing these antibacterial ingredients before without excessive panic? Tan Xiaodong, a professor at the school of public health of Wuhan University, said that triclosan and triclosan need to be exposed for a long time and accumulate to a certain extent, so they may cause harm to human body They are usually used and are not enough Cai Zhenyun, director of the Institute of chemical engineering, School of chemical engineering and Bioengineering, Zhejiang University, also said: "the public does not have to be particularly alarmed by such substances as triclosan and Trichlorocarban." The concentration of daily bath products is very low Previously, there was a strict international standard for the use of these ingredients in daily chemical production Trichlorocarban, as a preservative of cosmetics, was allowed to be used at a concentration of less than 0.2% internationally When it is used as washing active ingredient, the allowable concentration is 2% "There are many alternatives to general antimicrobial substances such as triclosan or triclosan What preservatives or fungicides are added to bath products, usually led by some large companies, they will do a lot of microbiological and toxicological experiments " Mr Cai said the big companies would quickly respond to the ban, select new alternatives, and the industry would follow up After the ban, manufacturers such as Johnson & Johnson, Procter & Gamble and Colgate said they were or had reformulated their products Shufujia responded that the existing products do not contain 19 ingredients mentioned by FDA.