Is the scalp the same as the skin? Is the skin of the head and face the same skin?

The thickness of the scalp is second only to the area around the eyes, and it is the second thinnest in the human body**, which is very thin and also easily damaged.

Three major characteristics of the scalp:

The scalp is a piece of the body, and the scalp is also a part of the body, one of the weakest pieces.

The scalp is an extension of the face**.

The scalp is the highest piece of the body, and it controls most of the body's elasticity.

The following factors determine that the scalp is more likely to be emotional:

1.The scalp is the thinnest in the human body, second only to the eye area, and the aging rate is 6 times that of the face and 12 times that of the body.

2.Unlike the general ** cell metabolism cycle of 28 days, scalp cells are metabolized.

The cycle is only 14-21 days.

3.The layers of hair cover make it easier for dirt and detergent residue to build.

4.Combing your hair too hard, dyeing it too hard, or blowing it out too often can make your scalp unhealthy.

5.Stress, diet, sleep, endocrine disorders.

Even changes in the weather can affect the health of the scalp and cause damage to the scalp.

The scalp is different from **, there are many hair follicles on the scalp, and there are a lot of sweat glands on it.

It should all be **, it's the same anyway, but the scalp is under the hair, so it's not easy to see.

The scalp simply refers to the cortex on the head,** including the surface tissues of the entire body.

The basic structure is composed of epidermis, dermis and subcutaneous tissue, and the scalp and face are actually a skin, but the scalp is 6 times older than the face and 12 times that of the body.

Compared with the scalp and the face**, there are a few more special features:

One: The thickness of the scalp is about millimeters, the thickness of the cheeks is about millimeters, and the thickness of the nose is about millimeters. That is, the scalp is thinner than most parts of the face.

Second, the density of sebaceous glands on the scalp is about 144-192 square centimeters, on the forehead is about 52-79 square centimeters, and on the cheeks is about 42-78 square centimeters [2].

Three: In 12 hours, the amount of sebum secreted on the surface of the scalp reached 288 g cm, while the amount of sebum on the forehead was only 144 g cm.

In short, the scalp is thinner and the sebum secretion is more vigorous than the face**, and the scalp is more challenging to clean than the face due to the cover of the hair.

The first layer of cowhide is good.

The first layer of cowhide belongs to the category of dermis, which is divided into two categories: the first layer of leather and the second layer of leather.

The first layer of skin is composed of a dense and thin fiber layer and a slightly loose layer closely connected to it, which has the characteristics of good strength, elasticity and process plasticity.

The second layer of leather only has a loose fibrous tissue layer, which can only be used to make leather products after spraying chemical raw materials or polishing, which maintains a certain natural elasticity and process plasticity, but the strength is poor.

Dermis includes the first layer of skin, the second layer of skin, and so on.

The first layer of skin is the most superficial layer of skin on the animal's body, and the first layer of skin is divided into many types of grades, and the biggest feature is good fastness. The skin of cows, pigs, horses and other animals with thick skin is cut into upper and lower layers after hair shedding, and the upper part of the fibrous tissue is processed into various first layers of skin. Strong and durable, it won't break after wearing.

The dermis is divided into two types: the first layer of skin and the second layer of skin. The first layer of skin is divided into green standard head skin (tree paste skin and grass wood paste skin) and ordinary standard head skin (spray paint and trim skin).

The second layer of leather is obtained by cutting thick leather with a sheet leather machine, the first layer is used to make full-grain leather or trimming leather, and the second layer is made into two layers of leather through a series of processes such as coating or filming, so it is also called film cowhide. The second layer of leather still retains the characteristics of cowhide, but the durability and flexural strength are far from those of the first layer of cowhide.

Usually, you must not stay up late and eat less greasy food to keep your scalp fresh, but do not wash it every day. That will make the scalp drier and cause more dandruff, and you can also supplement with vitamin B6 B2.

The causes of dandruff can be considered from many aspects, first, it is related to the metabolism in the body, because the scalp oil secretion is excessive and cannot be discharged and cleaned up in time, so there will be a lot of dandruff. Second, it is related to the change of weather, if the weather is too dry, the scalp is not getting the nutrients it deserves, then it is easy to form dandruff. Therefore, in order to control the formation of dandruff, you should wash your hair frequently, pay attention to the hygiene of your scalp, use a wooden comb to comb your hair, and blow dry your hair in time after washing.