The skin barrier helps our body to keep water and can prevent harmful substances from invading the external environment. How is the skin barrier formed and how does it work? Knowing the skin barrier, we can know why sometimes our skin will get worse, dry, acne, allergies and other symptoms.
The skin barrier is located in the stratum corneum, the outermost layer of our skin epidermis (hereinafter referred to as "skin structure").
It consists of keratinocytes, intercellular lipids and sebum covering the stratum corneum. As shown in the figure, keratinocytes are stacked layer by layer, and the lipid between keratinocytes is intercellular lipid. Their structure is like building a wall. When building a wall, the bricks are arranged first, and the gap in the middle is carefully filled with cement to form a solid wall. So is the skin barrier. Keratinocytes should be arranged healthily and regularly in order to play a good barrier role.
So what factors will affect the health of skin barrier?
External causes: physical friction, wind and sun exposure, wrong skin care methods, use of skin care products and makeup containing harmful substances, poor cleaning and excessive medical beauty.
Internal causes: hormonal imbalance, before and after physiological period, mood and stress, unhealthy lifestyle, such as staying up late, smoking, drinking, etc.
What happens when the skin barrier is damaged?
1: The skin loses the ability to lock water, and the water is easily lost, causing skin problems, such as pseudoallergy.
2. The skin loses its defense ability, and bacteria and other harmful substances can easily invade, causing skin problems, such as rashes and allergies.
3. The protection ability is weakened, and it is easy to produce melanin, become dull and easy to grow spots.
4. The skin function becomes worse, so it is impossible to carry out anti-aging care, because it cannot absorb high nutrition, which will accelerate aging.
How to judge whether your skin barrier is damaged? Answer the following questions, [Yi tooth]
0- 1: Skin barrier is healthy.
2-3: At the initial stage of skin barrier damage, we should begin to pay attention to the situation of skin barrier damage.
4-5: The skin barrier is damaged, and it will become more and more serious if we continue to let it go.
6-8: The skin barrier is in the worst condition, so you need to consult a professional skin management consultant to make a repair plan.
Therefore, the skin barrier is particularly important for healthy and beautiful skin, so it must be protected!