The structure of the skin, we know the structure of the skin, and if we look at this picture,

First of all, when you look at this picture, you'll notice that he has something called an epidermis, so what's the relationship between the epidermis and our skin? The epidermis, it's directly what we can see, I first look at the skin, whether there is gloss or whether there is redness of the skin is a phenomenon, whether there is this moistness, the roughness of the skin. So these are all visible through the epidermis, but inside the epidermis, I want to share with you today.

First, there's a stratum corneum. The stratum corneum which is the outermost layer of epidermal cells is a layer of dead cells that do a lot of work in our skin,

For example, he has certain protective functions,

For example, the thickness of the stratum corneum affects the skin's ability to absorb and it also affects the skin's ability to store water,

And it affects the complexion of the skin,

For example, our cuticle, let's say this hand is our cuticle, one layer, two layers, three layers, four layers, this is our four layers of cuticle, if, under normal circumstances, we have three layers of cuticle, he is normal and healthy, but if the cuticle is too thick, then this skin, in the process of absorbing cosmetics, as it penetrates down, Cuticle too good. So it will affect the absorption of cosmetics. So in the same way, some people will say that I have long felt that I did not absorb well, then I will remove him once, I also want to let it absorb a little better I remove again, then, this way your absorption is good. But there will be a problem with the skin, because the absorption is too fast, he will not be able to stand, then the skin may appear, a phenomenon of sensitivity.

Then the thickness of the stratum corneum will also affect our skin color, because we have a substance called melanin under the skin, and melanin particles will metabolize through the stratum corneum layer by layer, and fall off through a stratum corneum, so our skin color will become a little whiter. So here, if there is no way to fall off in time, melanin will all accumulate in the stratum corneum, so our skin color will see relatively dark and black. So the stratum corneum affects the skin color and the stratum corneum affects the water storage function of our skin.

When the cuticle is normal, the function of the skin to retain water will be very healthy, but when the cuticle is too thin, a layer of water cuticle, the lack of a layer of water will be lost once, the lack of a layer of water will be lost, so you will find that under thin circumstances, the skin's ability to store water will be reduced. The ability to decline, why our skin in the winter will be more dry or even peel off is because the skin stratum corneum lack of water, so its cells, is dry, off line, dandruff. This is the function of our stratum corneum, of course, the stratum corneum also has a protective function. If the stratum corneum is thin, its protective function is very good under normal circumstances, but if the stratum corneum is too thin, under normal circumstances, suppose I have four layers of stratum corneum, but my protective function will decline, and external things will invade the skin, the protective function will decline, and the decline will be obvious again. There's red blood under the skin, capillaries.

So this is the effect of the stratum corneum on our skin, the thickness of the stratum corneum affects the color of the skin, affects the absorption function of the skin, affects the water storage function of the skin and it also affects the resistance of the skin, this is our stratum corneum.

So someone said, well, since I want the cuticle to have so much influence and I want this skin to be whiter and closer, because you said after the cuticle, it's going to affect the skin tone, so let me just make the cuticle thinner, and my skin tone will be whiter and I'll exfoliate once this week, and then I'll exfoliate again next week. Then when you go again, you will find that your skin is more and more sensitive, and you will find that there is redness in the sun, and you will find that it is easy to be allergic.

So it doesn't mean that if you want to go to the stratum corneum, you can go to her, and the survival of the stratum corneum, her cycle is 28 days, which is the metabolic cycle of our epidermal cells 28 days to produce a stratum corneum, to metabolize a stratum corneum.

I also want to give you a little bit more clarity on why some people get dark skin,

And some people's skin will be white?

Why in the summer? Our skin will be a little darker?

And white skin in the winter?

Why do we get sunburn in the summer?

All of this is because inside our skin are cells called melanocytes. Melanocytes are mainly found in our epidermis. So it has several effects on our skin.

First of all, it will play a protective function, but in the process of ultraviolet radiation to our skin, melanocytes will produce a lot of melanin particles, and this melanin particles will refract the ultraviolet light out, and play the function of protecting the skin. So in the same way, if we're in the summer on our face you'll find that when we're exposed to ultraviolet light, let's say we're exposed to more sunlight, maybe we're in a higher position, like the cheekbones, like the bridge of the nose, so you'll find that we tend to get sunburn in this area, when ultraviolet light hits our skin, Our skin to protect itself will produce more melanin particles, this melanin particles, will refract the ultraviolet light, so the ultraviolet light is strong, the melanin will produce more particles, then it will form more pigmentation. Our color spots are formed when the pigmentation is uneven.

So the same melanin in addition to protecting the skin against UV rays, then there is another function.

Did any of us notice? But when we have acne, many beauty consultants tell you not to squeeze it with your hand, do not pick it with your hand, why? Because you pick, you squeeze it will leave liquid, produce our pimple mark, and even leave a scar, that is because we have a wound in the process of squeezing our skin, and in the process of healing he needs a certain amount of melanin to help it heal. So what we find is that after the wound has healed and the pimples have developed if the wound is deep, it will leave a pimples mark. So I suggest you must remember, do not go to hand to pick and squeeze.

This is what we're going to focus on in the epidermis of our skin a stratum corneum a melanocyte a metabolic cycle of our epidermis. Similarly, when we use skin care products, we need 28 days to have an effect because we follow the skin's metabolic cycle is 28 days, such as freckle, why say, many of our consumers are asking my beauty consultant said: hey, how long does your home this cosmetics have an effect? I wonder if it'll work in a week. Then our beauty consultant answered very clearly, we should tell our consumers that our cosmetics and skin care products can only be changed after one cycle, because we improve the skin according to the metabolic cycle of the skin, and it takes us 28 days to complete. It's the epidermal layer of the skin.

As the skin outside our epidermis improves,

You will find, why some people, her skin is very shiny and very hydrated, and what's more, very white.

But you'll notice that the outline, it's not clear, it's starting to sag, it's starting to sag, it's even got the law, the Sichuan script, and our crow's feet.

There is a network of substances, this crisscrossing, it forms the skin under the skin to form a similar to our spring force, he to support the elasticity of our skin, so what is this network, it is mainly our collagen fibers and elastic fibers, we have heard such a saying, want to beauty, or it is said to eat our tremella soup, you can beauty, Why? Because these substances add a lot of collagen to our skin, and these collagen can synthesize the web that we have now, which cannot support the elasticity and firmness of our skin, and our web, as you can see on our top here, we have the blue substance in this picture. This blue substance is what we usually call water. This crisscrossing network is our collagen fibers, when the lack of water, our collagen fibers will appear a property change, it will become brittle. Just imagine, our rubber band, when the rubber band has passed a certain period of time, it will change in the future, you pull it and it will break because we lack the moisture of this collagen fiber, it will not be moisturized, so you pull it may break. As soon as it's broken, it forms creases and those creases show up on the outside of the skin and form our wrinkles. If she is hydrated, she will slowly become elastic, then our skin will slowly become more timely.

So when our skin wants to reduce the formation of wrinkles, the first thing to give the skin a lot of water. Only with enough water can it moisturize our collagen fibers and keep them from becoming deformed. When the water is deformed, our skin will sag and sag. Therefore, in addition to supplementing a lot of water, we also need to supplement the collagen protein of our collagen fiber, because collagen fiber must have collagen protein to synthesize. Makes the skin more elastic. This is the dermis of our skin, the epidermis,

What you see is the glossiness of the skin, the redness of the skin, the wetness of the skin, and his texture. The real effect of pig feet is the elasticity and firmness of the skin, as well as the rate of skin sagging and aging.

This is the structure of our skin. According to the data, I know that the skin also has a subcutaneous tissue, but these skin care products have little to do with it, so we can focus on the epidermis and dermis.

So, what kind of skin is the healthiest?

First of all healthy skin, we will see that the skin should be rosy and shiny.

And her skin is dry, oily, and insensitive,

Finally, I feel the skin should be clear and blemish free.

This is what we all want and what we consider to be the most ideal type of skin. Under normal circumstances, we will divide the skin into these types, first we will have dry skin, normal skin, oily skin and mixed skin, these are the four types of skin that we normally give you.