Isolation cream is not fully protected

Isolation of makeup, ultraviolet light, dirty air and even computer radiation. To keep the skin away from all kinds of injuries, is it a small bottle of cream ? This is not only a problem worthy of attention in the industry, but also a topic that consumers need to know.

Many companies advertise that the cream is fully protected, and the cream is almost synonymous with the skin's "full protective film." Is the barrier cream really "rejecting the door" for all kinds of skin damage?

“I heard that the cream can protect the computer from radiation, and I can go to the mall for a lap. I didn’t buy anything.” Ms. Li, who works for a foreign company, has a lot of time to face the computer every day. In the process of purchasing the cream, Ms. Li is very confused. The brand creams have different functions and different interpretations. "After listening to the salesperson's introduction, I don't know what features the cream should have."

Ms. Li’s shopping experience is very representative. At a mall in Wangfujing, Beijing, almost every cosmetic counter displays its own cream products. When I came to a certain American brand cosmetics counter, the salesperson recommended a kind of isolation lotion to the reporter. “This is our popular product, and there are a lot of people to buy.” This isolating lotion is marked with SPF30's sun protection index. Next to this product, there is another sunscreen that also bears the "popular product" logo. The salesperson said that the difference between the two products is that the cream can whiten the skin while protecting the computer, and it can also isolate computer radiation. “Computer radiation is the ash layer that blows out of the surface of the computer. The barrier cream prevents these ash layers from sticking directly to the face.”

Moving to a Singapore cosmetics brand counter, the reporter just said that the cream was needed, and the salesperson picked up a small bottle and started the trial on the back of the reporter. According to the salesperson, the cream has three colors: ivory white, light green and light purple. It has no sunscreen effect, but it can adjust the skin tone.

The definition of a Korean brand cosmetics for the cream is obviously different from the previous two brands. The salesperson recommended a BB cream. “Our brand of cream is three-in-one for isolation, sun protection and foundation. BB cream can brighten skin without foundation, so it is better for skin.”

In a French brand cosmetics counter, the reporter saw sunscreen and creams that are very similar in packaging and bottle labeling, but the color of the lotion is slightly different. "Except for one that has a touch-up effect, the other aspects are the same." The counter salesperson said.

“Currently, the cream is still a common cosmetic in China. It does not need to apply for sunscreen special certificates to the Ministry of Health like sunscreen products.” For the phenomenon of different brands of creams, Professor of Cosmetics and Environmental Engineering, School of Chemical and Environmental Engineering, Beijing Technology and Business University Dong Yinxi gave an explanation. “Currently, various color creams on the market contain toners, various fats, etc. Some products claim to have sunscreen functions, but they contain sunscreens like sunscreens. But many are false propaganda.”

"The idea that isolation cream can isolate computer radiation is not good." Dong Yinxi explained that computer radiation is low-frequency radiation, with a wavelength of about 6.5 cm, and the energy carried is very low. "This kind of radiation is basically harmless to the human body and the skin. What about the damage that can be isolated?" Dong Yinxi said that this is mainly due to the increase in free radicals caused by computer radiation. Therefore, adding some anti-free radical active additives can greatly alleviate this effect.

Then, can the cream "reject the dirty air"? Dong Yinxi believes that this statement has some truth. "The cream is generally a 'water-in-oil' emulsion system, which can form an oil film on the skin. Therefore, it can isolate the external environment and isolate the dirty air to a certain extent.” The emulsifying system mentioned by Dong Yinxi actually refers to an emulsifier that makes the cosmetic emulsion stable. The emulsifier is hydrophilic and lipophilic, having a hydrophilic group at one end and an oleophilic group at one end. Before forming the final product, the emulsion product is two phases in which the oil phase and the water phase are not mutually soluble, and the emulsifier enables the immiscible two phases to be in a metastable state, so that it is stable during the shelf life. Dong Yinxi said: "The 'water-in-oil' type emulsion system is only one of the commonly used emulsion systems for lotion cosmetics. There are many skin care products using this system, so the isolation of dirty air is not a patent for barrier cream."

Isolation of make-up may be one of the reasons why many women who love beauty choose a cream. However, Dong Yinxi questioned this statement: “Cosmetic makeup is mainly a mixture of various powders, but many of the creams themselves have a high powder content.” Because of the high powder content, the makeup easily absorbs the moisture of the skin and makes the skin Dry and accelerate aging. “I think some of the moisturizing creams are better for the makeup. These products can increase the moisturization of the skin and improve the dry feeling of the makeup. Use a product with a high powder content to isolate another powdery product from the skin. Injury, I think this statement cannot be established." Dong Yinxi said.