The skin barrier
- What is the skin barrier
Skin barrier broadly includes physical barrier, pigment barrier, nerve barrier and immune barrier. The narrow sense of skin barrier mainly refers to the physical barrier, and the skin barrier we usually say is a physical barrier. The so-called skin barrier is the natural guard of human skin, everyone's skin has a layer of natural skin barrier, simply put, is a "protective film".
The skin barrier is composed of sebum membrane, stratum corneum keratin, lipids and dermal mucopolysaccharides. In the stratum corneum of healthy skin, keratinocytes and intercellular lipids are arranged like stable brick walls, with keratinocytes as bricks and intercellular lipids as mortar. The integrity of the "bricks" and "mortar" ensures the integrity of the skin barrier.
- Structure of skin barrier
In our life, at any time will suffer from the invasion of external physical, chemical, biological and other adverse factors, and then cause damage to the body, the skin barrier plays a role in preventing the invasion of these harmful factors; On the other hand, it can avoid the loss of water and lipids in the human epidermis and dermis in daily life.When the skin barrier is damaged,the keratinocyte arrangement is disorganized and loose, the physiological sefat and water are easily lost, the water content of the epidermis is reduced, and the transepidermal water loss (TEWL) is increased, which can not resist external stimulation and even cause skin diseases.
- after skin barrier is damaged
At present, due to climate change, environmental pollution, sun exposure, bad living habits or wrong skin care, the skin barrier is damaged, making the skin's own defense ability is insufficient, and the skin becomes sensitive and fragile. Common skin symptoms of impaired skin barriers are as follows，Dehydrated skin peeling, dry itching tight, poor tolerance, sensitive redness。
4.How to solve the problem of damaged skin barrier
The management of skin barrier can be started from two aspects: "repair" and "care". Repair the skin barrier, replenish the lack of lipids in the skin, lock the skin moisture; Strengthens the skin barrier, leaving the skin in a stable state and strong resistance to external stimuli.
A daily skincare routine is very important in repairing the skin barrier. Try to avoid the daily use of facial scrub products; Pay attention to sunscreen products to reduce UV stimulation of the skin; Use soothing, non-irritating skin care products, etc.
When choosing skin care products, it is recommended to use peace of mind products that do not add alcohol, flavor, color and other sensitizing ingredients. The efficacy of skin care products is mainly barrier repair, improve the skin's own immunity, and make the skin tough. When the skin barrier is repaired, dryness, redness, flaking and other problems will go away.
