Beware of 7 home remedies for scientific skin care

　　There are many popular beauty remedies in life. Some of them can indeed solve problems simply, get twice the result with half the effort, and have been proven to be correct. However, some of them are not the same and can actually cause great harm to your health. skin , which ones are effective and which ones should be guarded against? Here are the answers for you one by one.

　　There are many beauty tips in life, some of which have been proven to be correct, while others can greatly harm your skin. Which ones are effective and which ones should be avoided? Here are 7 beauty "little remedies" that you need to guard against one by one.

　　1. Toothpaste and salt water are very effective in suppressing acne?
　　
Another announcement will be made tomorrow, but today I suddenly have annoying pimples. How do artists and models deal with similar skin problems? Toothpaste and salt water must be the common answer. Is it effective?

Regarding salt water, most professional doctors generally say that it "has a certain effect." Plastic Surgery and Dermatology Hospital The doctor will tell you: “After squeezing the acne with a special cotton cloth, you can use a cotton pad dipped in salt water to wipe the remaining wounds. ”However, he also said that this is only a certain degree of disinfection and inhibition at most, and has no actual therapeutic effect. For example, when your face suddenly becomes red for no reason, using gauze soaked in salt water as a mask is one of the ways to take advantage of the disinfecting effect of salt water. Since salt water is not 100% effective, what about toothpaste that is said to inhibit the growth of acne? Professional doctors said: “This method is not only baseless, but also a very dangerous folk remedy. The main component of toothpaste foam contains substances that denature proteins, which not only destroys proteins in the body, but can also be said to be the natural enemy of the skin. In addition, most whitening toothpastes contain hydrogen peroxide (commonly known as hydrogen peroxide). Excessive use may cause side effects such as redness, swelling, and inflammation of the gums, not to mention the skin. ”

　　2. Will the pores become smaller if you rinse with cold water after washing your face?

“Rinse your face with cold water a few times at the end. This is the secret to making your skin elastic. ”Many beauty experts have said this, is it true or false? In response to this question, Kim Su-kyoung, a researcher at Unilever Korea Central Research Institute, replied: “Rinsing with cold water can indeed shrink the pores on the face, but this is only temporary. Even if this method is used for a long time, it will not have much impact on the skin. However, if you wash your face with warm water and then suddenly rinse it with cold water, it may cause irritation to the skin. ”A professional doctor from a dermatology hospital told us: “In fact, the best way to wash your face is to first wash your face with warm water of 38°C to 40°C that is similar to the skin temperature, then rinse it with water slightly colder than the skin temperature, and finally use lotion for maintenance. In addition, the most important key to maintaining pores is how to completely remove metabolites and blackheads from the pores. This has nothing to do with whether you rinse your face with cold water. ”