What are the basic knowledge about skin?

Everyone has a certain understanding of skin, and for women, the quality of skin is related to whether women are beautiful or not. The saying "a white complexion can conceal a hundred imperfections" means that one should judge based on the skin color, which means the whiter the skin, the more beautiful one is. However, in life, many women are troubled by skin problems, such as spots and so on. So, what are the basics of skin care?

Epidermis: The epidermis contains the stratum corneum, which is composed of 6-10 layers of healthy flat keratinized cells (visible to the naked eye).

Transparent layer: only on the soles of the feet and palms, which plays a role in heat insulation and wear resistance

Granular layer: Arranged in a flake-like pattern, contains flake-like keratin, which can refract light

There is a spinous layer - the thickest layer in the epidermis, which absorbs and transports nutrients

basal layer - biochemical layer of dividing and multiplying cells

Dermis: contains collagen, elastic fibers (related to skin aging)

Subcutaneous tissue: fat

Stratum corneum: It is layered like fish scales to prevent moisture loss. Keratinocytes are lifeless and are also called dead skin cells.

Its function is moisturizing

Too thin a stratum corneum can lead to water loss, dry and tight skin, so it should be adequately moisturized.

If the stratum corneum is too thick, the skin will lose its transparency, become rough and dull, and hinder the absorption of nutrients.

Basic facial skin care

Remove makeup. Under a microscope, we can see that the surface of human skin is actually uneven, with many intersecting grooves and textures, as well as countless tiny pores. When makeup is applied to the face, the pits and bumps in the skin become filled with all kinds of chemicals. Makeup must be removed promptly to avoid damaging the skin.

Usually we use makeup remover oil to remove makeup, but oily substances are not easy to rinse off with water. It is easy for them to remain on the face, clogging pores and causing symptoms such as acne and enlarged pores. Moreover, oil can be easily oxidized to produce lipid peroxides, which can easily deposit in the skin and form spots.