Yeast extract should be stopped immediately in case of allergy

"Fair and beautiful" skin has been the goal people yearn for and pursue since ancient times In recent years, with the growing popularity of celebrities for cosmetics containing yeast ingredients, the global beauty industry has blown a natural yeast wind, and become one of the mainstream products in skin care products, and even many stars "speak" platform for yeast skin care Since its inception, SK-II "immortal water" and domestic hot-selling "TST active yeast" have been included These brands of yeast skin care constantly promote their "magic effect" in skin care, which can make the skin achieve "crystal clear perfect effect" Yeast, or "yeast", is rich in a variety of proteins that are beneficial to human body, which has been widely confirmed in the food industry However, in the field of cosmetics, does yeast skin care cosmetics really have such magic? Is the cosmetic that advocate yeast skin care safe? Does the so-called "living yeast" really exist? What should be paid attention to when using? These are also issues of great concern to consumers Yeast skin care, really so magical? Some research reports and papers show that some components of yeast and its metabolites and derivatives have been used in cosmetics for many years In 2008, Gasper confirmed through human experiments that yeast extract has the safety comparable to vitamin, and has the effect of significantly improving skin condition, including improving skin roughness At the same time, the self-evaluation results of the subjects showed that yeast extract has a good effect of whitening skin In 2011, Japanese expert Kikuchi Nishimura confirmed that the yeast extract could significantly reduce melanin by adding 3% active substance to B16 cells of mouse Human experiments showed that the yeast could significantly improve the genetic skin allergy symptoms and reduce the skin water loss through skin Yeast extract, as a natural and safe active substance, can play a unique role in cosmetics Rox, a skincare expert in the skincare circle, said: the surface of human skin is like a small ecosystem, in which a large number of bacteria, fungi and other microorganisms are active, including yeast Yeast skin care can be understood as when the skin ushers in a variety of active ingredients extracted from yeast, it will increase the vitality of this ecosystem, promote metabolism, and achieve the effect of skin care Yeast skin care, safety is the first step for the use of cosmetics raw materials, the State Food and drug administration has clear provisions At the end of 2015, the State Food and Drug Administration issued the catalogue of used cosmetics raw materials (2015 Edition), in which many raw materials related to yeast skin care are listed For example, lysosomes from fermentation products of Bifidus yeast, extracts from Saccharomyces cerevisiae, Lactobacillus / sainfoin, etc The food and drug administration also has strict regulations on the number of colonies and yeast in cosmetics Experts from the China perfume and flavor Cosmetics Industry Association said that the use of cosmetic materials is rather complex A series of experiments are needed to see whether it will stimulate the body and other problems, such as dosage, formula, use alone or fermentation products According to China's cosmetics hygiene code and cosmetics safety technical code, the number of colonies per ml or g of cosmetics shall not be greater than 1000 CFU (colony or bacterial cell); the total number of mould and yeast shall not be greater than 100 CFU Health beauty expert Jia Hong said that once the colony exceeds the standard, it means that the cosmetics are unqualified or have gone bad When selecting products, Rox, a beauty and skin care expert, suggests logging into the website of the State Food and drug administration to check whether the products have passed the inspection of the food and drug administration Is there really so-called "living yeast"? Yeast widely exists in the natural environment and organism It can be regarded as a kind of "living" nutrition, which is rich in active substances and has a good repair and regeneration effect on the skin However, due to the active biological signs, the storage environment is extremely demanding, which also leads to high production cost and difficult to mass production The active yeast is extracted from fresh milk, which is the spring of life The pure microbial products with fermentation activity are obtained by using bioengineering technology and fermentation ventilation culture The recently sold TST live yeast mask claims that the three kinds of yeast contained in it are extracted from milk and plants It can remove dead skin, keratinocytes and acne from the skin, remove the collagen needed for the skin, and penetrate the bottom of the skin, and provide the nutrients needed for cell regeneration, so that the effect of activation and repair cells can be optimized "Generally, the yeast in cosmetics refers to the extract or filtrate of a yeast fermentation product," explained Rox, a beauty and skin care expert Because these extracts or filtrates contain a variety of active ingredients, they can moisturize the skin, promote cell metabolism, whitening and other functions Zhao Yi, a dermatologist at Beijing Qinghua Changgeng hospital, said that yeast skin care is a concept and yeast is a fungus We can put forward some elements from it Some studies have shown that these elements are beneficial to skin care, but they are not so simple and can be used Their reliability and safety need official certification Is yeast skin care suitable for all beauty lovers? Experts said that yeast skin care products have a certain beauty effect As long as there is no irritation or discomfort and no obvious allergic symptoms in the use of products containing yeast extract or filtrate from regular brands, it is generally considered that they can be used safely However, recently, some consumers have also exposed on social network, because of the use of yeast skin care cosmetics, resulting in redness, swelling, allergy and other symptoms on the face, calling on everyone to stop believing in yeast skin care cosmetics Therefore, not everyone is suitable to use yeast cosmetics Han Yuze, chief dermatologist of Yuemei medical beauty clinic, said that using cosmetics is icing on the cake, and the nutrients contained in cosmetics are indeed meaningful for skin maintenance But it's also possible to have allergies when using cosmetics Any cosmetics may be allergic after use, which may include some ingredients or use improperly Once the skin is uncomfortable, it should be stopped immediately And to the authority of the patch test, through the test to get a test report, analysis of the individual allergic to which ingredients Jiahong, a health beauty expert, also said that under special circumstances, such as skin breaking, small wounds and rashes, the rapid penetration of these highly active ingredients into the skin will cause poor skin tolerance, resulting in skin problems such as redness, fever, sensitivity and fragility When the skin is damaged, the simpler the cosmetic ingredients are, the better The most important is the moisturizing function Too many other active ingredients will become a burden on the skin Yeast extract is rich in amino acids, oligopeptides, minerals, vitamins and other nutrients for human body, its safety is beyond doubt As a safe, nutritious and efficient whitening active substance, yeast extract can be used in cosmetics However, it is suggested that it must be evaluated and tested safely and reliably before use, and it must not be used blindly.