“Don’t take a shower” is a common phrase that dermatologists often tell patients with skin allergies who have a damaged skin barrier, sometimes to the disbelief and disbelief of their patients. The causes of allergies are complex and varied, and it is impossible to say exactly why. The signs of skin barrier damage: dryness, acne, facial flushing, tingling, burning and other skin allergic reactions, it is likely that the skin barrier has been damaged. According to research, among the 1.3 billion people in China, nearly 1.1 billion people have a sub-healthy facial skin, and about 400 million of them have damaged skin. So, the question arises, what is the skin barrier? Here, let the professional dermatologists bring you to know more about it! Skin barrier system – the natural guardian of human skin Everyone’s skin surface actually has a natural skin barrier system, which consists of the human epidermal stratum corneum and sebaceous membrane. The stratum corneum is the outermost part of the epidermis, and skin moisture retention is determined by the water content of the stratum corneum, which means that whether our skin is dry or not depends on this layer. Normal skin barrier Damaged skin barrier In the stratum corneum, keratinocytes and intercellular lipids are arranged in a brick wall-like structure, forming a stable skin structure that protects the skin barrier function and effectively prevents excessive evaporation of water from the body while preventing bacteria or foreign substances from invading the body. In a nutshell, the skin barrier consists of the most superficial layer of the skin, which is the surface of the skin visible to the naked eye. Its function is to keep the skin moist and smooth, and to shield it from harmful substances. Most skin problems stem from a damaged skin barrier. Healthy, undamaged skin looks and feels smooth, soft, full and definitely not dry. However, when the skin barrier is damaged, the skin will be as dry, rough and dull as if it has been dehydrated. Closed air-conditioned environment, frequent face washing and bathing, listening to false and exaggerated advertisements and indiscriminate use of skin care products and salon products of unknown origin …… all kinds of problems can cause damage to the skin barrier, which is why it was mentioned earlier that actresses and ladies who love beauty are more likely to have a damaged skin barrier. When the barrier is damaged, the skin will quickly start self-repair, but as time passes, the skin’s self-repair speed will gradually slow down. Once the skin barrier is damaged, it cannot lock moisture internally and cannot resist microorganisms and chemicals externally, leading to a series of vicious circles. The skin becomes more and more dry and produces all kinds of discomfort. How to repair the skin barrier? 1, master the correct knowledge of skin care: this is the focus of the focus, as the so-called knowledge changes fate, efforts to learn scientific skin knowledge, advocate scientific skin care methods, realistic, do not listen to cosmetic advertising, cosmetics salesman’s lull. 2, the correct cleansing: no matter what type of skin you have, to the correct cleansing, try to use mild types of cleansing products, such as gel cleansers with less foam, be sure to avoid strong oil control and cleaning foam-type cleansers, soap-based cleansing products, hand soap, etc. should also be avoided as much as possible. Because strong cleaning products will quietly destroy your skin barrier. 3, do not blindly exfoliate: not all skin types are suitable for exfoliation, it is not recommended to blindly exfoliate. 4, do not use stimulating products: regardless of whether the skin barrier is damaged, you should consciously avoid the long-term use of strong irritating products (such as alcohol, fragrance, dodecyl sulfate-based irritating detergents, etc.) ~ because this will make the healthy skin barrier damaged, so that the damaged skin barrier and then enter the vicious cycle of 3 steps (i.e. barrier damage -> inflammatory substances into -> skin inflammation -> barrier damage ….) 5, auxiliary skin care products: skin care products containing natural moisturizing factors can not only help the skin retain moisture without stimulation, but also promote the repair of the stratum corneum Jun. Then, use some creams containing natural plant oils, which can not only lock the moisture in the skin, but also provide free fatty acids to the skin and improve the speed of skin barrier repair. In addition, make sure to do a good job of sun protection, choose a mild and non-irritating sunscreen, and apply it carefully every day before going out. Also pay attention to removing makeup, try to choose a makeup remover or makeup remover oil, it is recommended to try to use natural plant oils if possible. 6, self-repair: the skin’s self-repair process is slow, and the speed varies from person to person depending on age, generally speaking, about 20 years old 3-5 months can slowly recover, more than 30 years old mature skin, it will take at least six months or more time, in short, this is a very patient process. 7, diet: the last point, to drink more water, eat more vegetables and fruits, but also appropriate intake of plant and animal fats. Finally, it is a responsibility to remind everyone not to blindly follow the wind Shu Qi and other female celebrities choose not to take a bath to skin care, in fact, or according to the different skin problems to decide, like infant eczema, elderly scratchy disease, in the clinical also often need to follow medical advice, do not take a bath or correct bath (choose a mild non-irritating bath products).