Does soap contain a fluorescent agent? How to judge?

In modern life, the safety of skin care products has always been a concern of many people. Today, let me talk about the problem of soap containing fluorescent agents that everyone cares about now.

       With the changes in the environment in recent years, people are increasingly inclined to use green and natural skin care products, and among all skin care products, soap is undoubtedly the most natural product. So, does the soap contain a fluorescent agent? Is there two ways to judge the ordinary consumer to determine whether the soap contains a fluorescent agent?

Method one, view the table of soap ingredients.

According to national standards, regular soaps must be marked with product ingredients. One of them is called "sodium distyryl diphenyl disulfonate", which acts as a whitening agent and is also a fluorescent whitening agent. If such a component is contained in the soap component table, it is a fluorescent agent. However, not all products with added fluorescers will be written in the ingredient list, and some products will not write fluorescer at all. What should I do at this time?

Method 2, using ultraviolet devices (such as professional UV flashlight, the spectrum can be pure; ordinary banknote pen is not, the light is very difficult to observe clearly) to check whether there is blue-white fluorescence.

There are many substances that can emit different shades of fluorescence under ultraviolet excitation: red, yellow, blue, green, and so on. The fluorescent whitening agent emits a bright blue-white fluorescence. Therefore, as long as the paper towel, laundry detergent, BB cream, mask, whitening liquid, soap (slice, or the skin after the soap has been washed) and the like emit bright blue-white fluorescence by ultraviolet irradiation, it can be basically confirmed that it contains fluorescence increase. White agent.

A brief introduction to fluorescent whitening agents

       There are many types of fluorescers, and their safety cannot be generalized for the time being. Among them, the chemical properties of polychlorinated biphenyls are quite stable. When they enter the human body, they are easily absorbed and accumulated, which is difficult to excrete. Animal toxicity tests have shown that it has teratogenic and carcinogenic effects. If the storage of polychlorinated biphenyls in the human body reaches N(o.5-2)g, it will cause poisoning.

       In fact, fluorescers are common in skin care products such as facial masks and body lotions in modern life. The safety of fluorescers is also widely debated. Some people think it is safe, while others think it is harmful. However, there is a point that some advertisements can make the skin whiten and beautiful immediately. Most of them add ordinary fluorescent agents to deceive the consumers. In order to cross the sea, such products often join Xuancheng to add certain special effects ingredients. Whitening is a long-term maintenance work, and I hope you can learn more about it.

       After reading these, I believe that you can have your own judgment when purchasing soap.

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