Hand sanitizer is a common daily necessities. Its function is similar to that of soap. It is combined with water to remove dirt and adhering bacteria by mechanical friction and surfactant. However, hand sanitizer manufacturers often advertise their own antibacterial ingredients, which can more effectively eliminate bacteria and inhibit the growth of bacteria on the skin. Manufacturers believe that this can keep the skin relatively clean and reduce the risk of infectious diseases. It is this part of the bacteriostatic substance that has attracted controversy.
The so-called bacteriostatic substance refers to a substance which exhibits the effect of inhibiting the proliferation of bacteria in the laboratory. In the United States, antibacterial testing of over-the-counter toiletries with antibacterial markers is not a direct test of the efficacy of the product in reducing infection rates. In terms of disease prevention, there is currently no evidence that toilets marked with antibacterial/antibacterial properties are superior to ordinary soaps and clean water.
The harm of triclosan is still under investigation
Triclosan is an efficient broad-spectrum antibacterial agent widely used in toothpaste, high-efficiency medicated soap, hygienic soap, sanitizer, disinfectant hand sanitizer, wound disinfectant spray, medical device disinfectant and facial cleanser.
Dr. Peter Vikesland of Virginia Tech University of the United States and others have done research. Triclosan reacts with chlorine gas remaining in water during the treatment of tap water to form chloroform. Chloroform has obvious liver and kidney toxicity and mild teratogenic effects. Since chloroform has been classified as a suspected carcinogen by the US Environmental Protection Agency (EPA), there have been media warnings to use caution in the use of hand sanitizers and household chemicals containing triclosan. But Dr. Vikesland later denied the news that he had issued a warning. Triclosan is a low-toxic chemical when it enters the body through oral and skin contact routes; however, it is a moderately toxic chemical when it enters the body through inhalation; it is not irritating to the skin and is not sensitized. According to the final guidance document of the US Environmental Protection Agency's risk assessment for carcinogens, triclosan is classified as “impossible to become a human carcinogenâ€.
Triclosan has an effect on mammalian thyroid function, but it remains to be studied in humans. As for whether triclosan reacts with free chlorine in tap water to form chloroform, and the environmental pollution affects the human body due to the presence of biomagnification, it is not fully understood yet, so the harm of triclosan to human body needs to continue. the study.
Hand sanitizer is neither an angel nor a devil
There is no need to be afraid of triclosan in hand sanitizer. After all, fairly reliable professional organizations such as FDA and IRAC have not warned about their safety, so they can use it with confidence. At the same time, there is no need to place too high expectations on it, because the hand sanitizer is not a drug after all, and the approval process is not as strict as the drug, and its effect may not be as good as the propaganda.
In short, what should be known about washing hands is that it is more important to wash your hands than to use hand soap or soap.
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