How to restore damaged skin barrier? What is skin barrier?

How do you restore your skin barrier if it’s damaged? So do you know what teaches screen barriers? Let’s learn about skin barrier knowledge together.

How to restore damaged skin barrier

What to do if skin is damaged?

The sebum membrane has an irreplaceable important function for the human body. Together with keratinocytes and intercellular matrix, it forms a complete skin barrier. This barrier can lock in skin moisture and oil, and resist the invasion of various skin surface pathogens, playing a very important protective role.

Because our skin cells are constantly regenerating every day, the skin barrier is also constantly being renewed. Old keratin is shed, and intercellular matrix and sebum are constantly pushed to the surface of the skin and washed away by sweat and the washing process.

Therefore, our usual skin care routine is a process of regular artificial renewal of the skin barrier. Cleansing milk helps remove the mixture of "old dead skin cells + sebum + extracellular matrix and dirt adhering to the skin", and moisturizing cream replenishes the ingredients needed by the skin to help maintain the integrity of the skin barrier, which is similar to a regular "renovation" of minor repairs. (So ​​daily basic skin care is still very important)

However, once powerful "demolition" procedures such as acid peels and laser beauty are introduced, our skin's own repair system has to work overtime all night to completely rebuild the barrier. If at this time you are still using the same skin care steps as usual, it is equivalent to a typhoon today and a flood tomorrow on this ruins. How can the skin be effectively repaired?

So, it is easy to tear down a wall but difficult to build one. The difficulty lies in how to not interfere with the skin's own repair process. Therefore, during the skin repair period, you must avoid eating spicy food, beef, mutton, etc. It is necessary to take protective measures when going out and apply sunscreen. Create a stable repair environment for the skin.

Skin barrier physiology

The skin is the strongest barrier to protect the body. The outermost layer is aging keratinocytes. We can imagine the skin as a wall, and the keratinocytes are like bricks. What connects the bricks?

The extracellular matrix plays the role of "mortar", and the sebum secreted by the sebaceous glands is the paint of this wall. The extracellular matrix and sebum are generally fat-soluble components, such as steroids, fatty acids, ceramides, etc., so we collectively call them lipids. The sebum secreted by the sebaceous glands is called sebum, which, together with the sweat secreted by the sweat glands, mixes together to form a sebum film.