What is the barrier function of the skin? Skin barrier in a broad sense includes physical barrier, pigment barrier, nerve barrier, immune barrier, etc. In the narrow sense, it mainly refers to the physical barrier, and we usually talk about the physical barrier. The physical barrier is composed of sebaceous membrane, keratin, lipids, “sandwich” structure, brick wall structure, dermal mucopolysaccharides, mucopolysaccharides, etc. It protects the skin from external harmful substances, irritants and sunlight, and has moisturizing and anti-inflammatory effects. When it is damaged, it can cause dry skin, aging, pigmentation, atopic dermatitis, eczema, psoriasis, ichthyosis, solar dermatitis, irritant dermatitis, hormone dependent dermatitis, acne, rosacea, seborrheic dermatitis and a series of skin diseases. As the saying goes, people live face, trees live skin. Among the whole body skin, the longest exposure time is precisely our most cherished face. The most common hazards encountered by the skin 1, ultraviolet radiation 2, chemical pollution and dust erosion 3, a variety of cosmetics 4, a long time computer and a variety of electrical radiation We may be at the most beautiful age, is enjoying the beauty of youth, but do not know that the aging of the skin in these adverse external environment has begun to quietly accelerate. A study shows that people after 25 years old, if you do not know the reasonable maintenance of the skin, the skin will be like a slide downhill, which is not enough to cause us to be alarmed? The saddest thing in life is to grow too anxious! The age of 20, the face of 30, is because you have the mentality of a 40-year-old! If you don’t care about your skin and let the damage and aging go, even if you have more hyaluronic acid, it’s hard to smooth out the signs of age! Skin barrier function test So what kind of guidance and help can skin barrier function test provide to customers? First, it can clarify your skin type. The skin test includes: oil, moisture, transdermal water loss, skin pH, etc. This can objectively understand whether the patient’s skin type belongs to oily, dry or mixed, which is an important reference value for the patient’s correct skin care and selection of skin care products. At the same time, according to the analysis of the skin pictures collected by different lights, it is possible to understand the distribution of spots and their types under each level of the skin, the subcutaneous capillary situation, whether there are hidden acne problems in the skin and whether there are deposits of abnormal substances under the skin (such as fluorescent substances), through objective data display, patients can have a closer understanding of their own skin lesion condition, and at the same time, it is important for doctors to choose treatment plans. It is also an important guide for doctors in choosing treatment plans. Rational skin care The skin barrier function test can help customers understand their skin type correctly, get out of the misunderstanding, and choose the appropriate skin care products instead of expensive ones. The role of water and milk is to hydrate, and the role of oil is to lock water. Dry skin should choose moisturizers with high oil content, if the oil is too low to make up more water will be consumed in a very short time; while oily skin needs refreshing skin care products to properly remove oil and protect the cleanliness of the skin. If you want to ask how to properly skincare, we use four words to answer: that is “reasonable skincare”. If you know your own skin, you can protect it reasonably effectively, otherwise the untargeted skin care may be counterproductive and cause damage to the skin’s barrier function.