In order to prevent the skin from being irritated and allergic, an allergy test should be carried out when using new cosmetics. Don't be fooled by exaggerated claims in advertisements. Even if it works for many people, it may not work for you. On delicate skin that is difficult to be found, apply a small piece and cover with gauze. After 1 day and night, compare with the surrounding skin, if itching and small red bumps appear, it is not suitable to use.

The answer is yes. There is a saying on the Internet that women’s skin care products contain estrogen, and men can’t use it. This is wrong. Few of the skin care products on the market now blatantly add estrogen, which is also prohibited by the country. , as a woman, I will never choose skin care products containing estrogen, so cosmetics manufacturers will not be so stupid. However, I have also seen a certain product that actively indicates that it contains estrogen, and this product is not recommended for men and women. However, it is better for men to choose skin care products specially designed for men, because after all, they are formulated according to the characteristics of men's skin. Women's skin care products are different from men's products in terms of oil addition.

The answer is not necessarily! The make-up products produced by regular manufacturers will be operated in strict accordance with national standards. Now some brands of foundations even add skin care ingredients in order to achieve dual effects of modification and skin care. As for the lead contained in cosmetics, you don’t need to panic. Lead is a heavy metal that is banned by various countries, but it is also allowed to be unavoidably brought in during the production process. Our country has regulations that the content of lead in products cannot More than 40mg/kg, regular manufacturers will comply with such regulations, so it is credible in terms of safety. But if it is a three-no product, it is difficult to guarantee the quality and it will damage the skin.

Every enterprise will have a clear market positioning and pricing for products at the beginning of product planning, so the research and development of cosmetic formulas cannot be separated from the market. Suppose a face cream is sold to second- and third-tier cities, and the price is 50 yuan/50 grams. According to the calculation of packaging, production, filling, profit and other expenses, the cost of raw materials should be controlled at 100 yuan/kg. If this standard is not met , Formulation designers need to fine-tune the formula to reduce the cost of the product, such as selecting more cost-effective functional raw materials, optimizing the amount of addition, screening out lower-priced raw materials, etc.

The stability of cosmetics is one of the important factors reflecting the quality of cosmetics. Formulation designers can properly adjust the thickening system and emulsification system of the formula to ensure product stability while ensuring skin feel.

Microorganisms. Cream and cream cosmetics often contain rich nutrients, making them a good culture medium for bacteria. According to regulations, there should be no more than 1000 microorganisms per gram of cosmetics, and they should not carry pathogenic bacteria. However, during a period of time, it was found that some cosmetics contain over 10000 microorganisms per gram and carry pathogenic bacteria, mainly due to lax operating procedures that cause pollution to humans and animals. Currently, there have been changes in this type of issue.