What is keratin and what does keratin mean

Don't exfoliate, a lesson from the past. Keratin is a natural barrier, I was acquired improper exfoliation caused a series of problems, and then got eczema and artificial urticaria, and also checked out to have an allergic constitution, I used to be in good health, there is no problem with eating and drinking, but then after leaving home, due to the abnormal three meals led to a decrease in immunity. Now I can only eat vegetarian food for the past few months, and I can't go out during the day, because the heat from the outside world alone will make the damaged place have a burning sensation, and then** will become very red, and when I wash my face, I feel like a stinging sensation like a cracked one.

A lot of people miss out on the best age for skincare and don't start skincare until they think they need it, however, this v

It's a kind of dead skin.

Keratin is the outermost part of the skin's epidermis and is mainly made up of 10 to 20 layers of flat, dead cells without a nucleus. It is easy to accumulate over time and form various ** problems, so remember to exfoliate your skin regularly.

The stratum corneum is the first natural barrier of our human body, which can be divided into the following aspects:

1. Prevention of electricity. The stratum corneum is a poor conductor of electricity, and it has a certain impedance ability to low voltage currents. The resistance value is affected by factors such as sweat gland secretion and excretion activities, mental state and climate, especially related to the water content of the stratum corneum and its surface humidity, and the resistance value is inversely proportional to the amount of moisture, that is, the resistance value of ** when dry is larger than that when wet, and the conductivity is low.

2. Light absorption capacity. Most of the ultraviolet rays are absorbed by the epidermis to protect the body's organs and tissues from sun damage. Artificially removing the stratum corneum will inevitably expose the ** tissue to the sun without shelter.

3. Protection of body skin. The stratum corneum is the top layer of the skin, the layer of dead cells. This is a very thin film of cuticle, about millimeters thick, but plays an important role in protecting the body.

We touch detergent with our bare hands, and the detergent does not penetrate our skin. This is because the stratum corneum exerts its barrier function. In addition, it also prevents the water inside the body from evaporating outward.

Keratin is a hydroxy fatty acid containing 16 to 18 carbons. It is a horn-like texture, similar to a cow's horn or antelope horn, and is generally solid and translucent. Keratin is the main component of the stratum corneum.

**Divided into epidermis, dermis, subcutaneous tissue; The surface layer is divided into five layers, from bottom to top are the basal layer, the spinous cell layer, the granular layer, the transparent layer, and the stratum corneum.

Cells start to grow from the basal layer, with the passage out, through the process of aging and death, keratin is the last product of the continuous regeneration of epidermal cells, **the surface of the stratum corneum is thick, **will lose its luster, gray, peeling, wrinkles, acne, etc. The cycle of keratin formation is about a month, so beauty experts pay attention to exfoliation once every 28 days.

Hair, nails, and the stratum corneum on the surface of ** are all keratin. Keratin is a layer of tissue in the epidermis of some animals and plants, with a tough texture, composed of chitin, limestone, etc., which has the effect of protecting internal tissues.

Keratin is the main component of the stratum corneum of plants. It is not a single substance, but a polymer of high-grade fatty acids (hydroxy C18 fatty acids) with a high degree of unsaturation. The composition of keratin can vary greatly depending on the type of plant.

Keratin is the skeleton material of the stratum corneum, which generally exists in layers on the surface of stems and leaves.

Horn is a texture similar to horns, like cow horns, antelope horns, generally solid texture, translucent. to distinguish it from metallic, woody, grassy, leathery, etc.

"" is actually what we call dead skin. It belongs to the outermost layer of our ** epidermal layer, and the main component is soft keratin, which has strong water absorption. If the stratum corneum is too thick**, it will turn yellow because it contains carotene, and too thick will also affect the absorption of nutrients!

The stratum corneum is made up of 5 to 10 layers of flat keratinocytes that have died. The stratum corneum is our body's first natural barrier. Prevention of electricity.

Ability to absorb light. Protection against mechanical damage. Protection against chemical damage.

Protection against biological damage. Prevents the loss of nutrients in the body.

The main component of the cuticle of the cuticle of the cuticle of the plant. It is not a single substance, but a polymer of higher fatty acids with a high degree of unsaturation.

Keratin is a horn-like texture, such as cow horn, which is firm and translucent. to distinguish it from metallic, woody, grassy, leathery. The stratum corneum is the first barrier of the human body: (1) the stratum corneum has impedance to low voltage and current, (2) most of the ultraviolet rays are absorbed by the epidermis, and (3) ordinary viruses cannot enter the **.

The thickness of the stratum corneum can affect the skin tone and the absorption of nutrients.

Keratin, commonly known as dead skin, is located in the outermost layer of the epidermis.

The epidermal cells of the first keratin are gradually aging, and eventually gradually shrinking, and the nucleus gradually disappears, and finally forms a keratinized state of cell residue. These cellular remnants gradually accumulate and aggregate to form a keratin state.

Usually these keratins are distributed outside the epidermal cells, on top of the granular layer cells, and this substance usually appears as a grayish-white texture with a hard state. It has a certain protective and barrier effect on **, and also has a certain role in retaining moisture.

Exfoliation.

First of all, you need to know your facial skin, if your skin is dry or sensitive, it doesn't matter if you don't exfoliate in particular, if you want to do it, remember to choose a gentle exfoliator, about once every 1 or 2 weeks.

Over-exfoliation will result in dry, red, itchy skin. In addition, many people are afraid that the more exfoliation** will be thinner, in fact, keratin is only the first layer of the epidermis, so it will not lead to **thinning due to long-term exfoliation, unless you really go too far, it is possible to make **thinning.

What is keratin?Keratin, commonly known as dead skin, is located in the outermost layer of the epidermis.

The stratum corneum is composed of 4 8 layers of flat non-nuclear keratinocytes, which contains keratin, which has strong water absorption and a water content of not less than 10 to maintain the best softness. This layer of cells no longer contains a nucleus, the cytoplasm dries out to form fine fibers, the cell membrane is thickened and folded, and the edges of the adjacent keratinocytes fold with each other, and the cells are filled with lipids, forming an important defense barrier of the epidermis. The outer layer of keratinocytes will fall off on their own after a certain period of time, and new keratinocytes will be added at the same time.

The stratum corneum of the frequently rubbed parts is relatively thick, such as the palms of the hands, the soles of the feet, etc. The stratum corneum of the eyelids is the thinnest and more delicate. Excessive cleansing** or whitening and wrinkle removal will damage the stratum corneum, resulting in**sensitivity.

This content was reviewed by Zuo Yagang, chief physician of the Beijing Special Needs Department of the Chinese Academy of Medical Sciences.

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