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Yun Wuxin, a Ph.D. in Food Engineering at Purdue University in the United States, explained that many people’s panic about detergents stems from "chemophobia," and they worry that chemically synthesized surfactants will be harmful to health. Regarding "Sodium dodecylbenzene sulfonate can harm the skin", although it is written in the product description, it usually refers to a high-concentration pure product. It only needs a few drops to use for washing dishes. The concentration is very low and not long-term exposure. skin. As for "large use without rinsing", it is also a typical fallacy of "talking about toxicity from the dose". The safety assessment of surfactants will consider the situation of large use without rinsing, and in extreme cases, it will not harm health before it can be approved. Yun Wuxin added that some people like to use "alkali" for cleaning, but alkali is also a chemical product, and long-term contact can also harm the skin. In addition, although alkali can remove oil, its cleaning effect is inferior to detergent.
Reference source: udn/元氣網 https://health.udn.com/health/story/6008/4234304