What can I do with my hair? What can human hair be used for?

Human hair is protected from cold, sun, and ultraviolet rays. Hair can also protect the scalp and brain from external factors, especially in infancy and young children, when the bones of the head are not fully developed, and the role of hair is even more important. Hair can also reflect even a person's health condition.

Hair also has a certain aesthetic effect, and hair can also accelerate the evaporation of water in the human body. Hair can also preserve a person's temperature and has a certain thermal insulation effect. Hair is rich in DNA that can be used to identify people.

The role of hair Hair is an important part of the human body, and it is accompanied by beautiful hair since the birth of the baby, and hair is an appendage of **. Hair plays a very important role in people's lives. Cosmetic effects:

has a bright black hair, neatly repaired and generous, long and transparent, when presented in front of everyone, it gives people a kind of chic and elegant, beautiful enjoyment; On the contrary, if it is fluffy and dirty, it will give people an unpleasant feeling. Protective: Thousands of hairs wrap around the skull, naturally forming the head's first line of defense.

Thick, healthy, clean hair plays an important role in fitness by protecting the head from external mechanical and bacterial damage. Sensory effect: the feeling of hair is more sensitive, when the external environment has an impact on the human body, whether it is wind and rain, or sun and fire, the first thing to feel is the hair, and the information sent by it is transmitted to the brain, so as to take a variety of protective measures.

Regulating: Hair regulates body temperature. In winter, the cold wind is cold, the blood vessels are constricted, and the hair can keep the head a certain amount of heat; In summer, the red sun is scorching, the blood vessels dilate, and the hair can radiate heat from the outside.

As a result, hair has the dual function of keeping heat both warm and cool. Hair is a fibrous tissue that grows from the scalp and is an arrangement of hard keratin formed by cell regeneration. Hair is made up of two parts: the root and the shaft.

What can human hair be used for, everyone's hair needs to be trimmed or taken care of at the barbershop, so the hair that people cut off goes to **, what is the use of hair after the hairdresser collects hair? Let's take a look at what human hair can be used for.

Human hair is used for the following main purposes:

1. Hairstyle model

Some of the hair taken away is used as a hairstyle model, which we can see in many beauty salon schools and other places, which is used by students to practice making hairstyles, and some of the hair on these hairstyles is made of real people's hair'Hair models made from real people are more expensive, but they are easier to use.

2. Wigs and beards

In addition to the wigs that people usually wear, the wigs and beards used in film and television dramas are also made with these hairs, and some of them are used to make hair extensions, which are hair extensions that are very popular in hair salons now, and short hair is extended into long hair, and this kind of real wig hair is more expensive.

3. Raw materials for soy sauce

Hair is rich in amino acids, and amino acids are also raw materials for the production of soy sauce, so some illegal small factories will use amino acids extracted from broken hair residue to make soy sauce in order to make profits. The cost of soy sauce produced by this method is very low, but its harm is very great, because modern people's hair is permed and dyed, there will be a lot of chemical residues, and if people often consume such soy sauce, it will cause a very adverse effect on the body.

Wigs and feeds can be made.

First, most of the hair of ** went to the wig factory

After processing, it becomes a wig product sold in the store, and TV and movies are definitely in demand for this kind of wig products, of course, there are some to catch up with fashion or to cover the embarrassment of hair loss, and of course, a considerable part of it will be exported to all over the world.

The earliest hair collection in our country can be traced back to the late Qing Dynasty, when German businessmen purchased hair raw materials in China, and a businessman in Xuchang, Henan Province valued business opportunities and opened a hair village, called Dexingyi. It was this hair dealer that purchased hair locally, and processed it into wigs that were popular at European and American gatherings, and the hair-making industry gradually took shape.

In the countryside, when I was a child, there were a lot of barbers who would sell on the street every three or five times. After that, the sisters would negotiate the price with the barber. If the hair is long enough, Wang Qiao can sell it for a few hundred yuan, which is equivalent to the income of a rural family last month.

So, at that time, the girls wanted to keep a black and thick hair and sell it for money.

2. Processing into feed or other products

In fact, there is a little keratin substance in our human hair, but it can be refined after chemical treatment, some of which are processed into feed additives, and there are certain amino acids and other elements in the hair.

By September 2020, the hair is 50 cm long, **around 300-500 yuan, and the longer the hair**, the higher.

Hair can be used as an industrial raw material to make amino acids, and the main component of hair is keratin, accounting for about 97%. Keratin, on the other hand, is made up of amino acids. After chemical treatment, the hair can be hydrolyzed with high-concentration hydrochloric acid, which can decompose 28 kinds of amino acids, which can produce a large number of animal nutrition solutions and feed additives, and become raw materials for industrial processing.

Wigs, hair extensions: hair extensions are recently introduced by Europe hairstyle technology, as the name suggests, hair extensions are to connect hair to real hair, instantly achieve the transformation from short hair to long, hair extensions can be Sakura wigs, can also be real hair.

Hair care: 1. Shampoo and hair care. Shampoo your hair and then maintain it with conditioner.

2. Bake oil regularly. It's best to do a hot oil routine for your hair every other month.

3. Perm and dye separation. It is best not to perm and dye hair together, because perm and hair dye are rich in more chemical ingredients, and the damage to the hair is greater due to the damage of two layers.

4. Time distance. If she is not satisfied with the newly permed hairstyle, some people will re-perm it once or ask the hairstylist to help her ** as it is, but as everyone knows, Spine Tanqing has great damage to her hair.

Hail envy can be used as a hairstyle model, wig, and beard.

1. Hairstyle dispatch model.

Some of the hair collected is used as a hairstyle model, which can be seen in many beauty salon schools and other places, which is used for students to practice hairstyling, and the hair on these hairstyles is made by real people's hair, and the hairstyle models made by real people are more expensive, but they are easier to use.

2. Wigs and beards

In addition to the wigs that people usually wear, the wigs and beards used in film and television dramas are also made of these hairs, and some of the sources are used to make hair extensions, which are hair extensions that are very popular in hair salons, and short hair is extended into long hair, and this kind of real wig hair is more expensive.

Hair can be made as a hairstyle model acres, wigs and beards.

1. Hairstyle model

Some of the hair collected is used as a hairstyle model, which can be seen in many beauty salon schools and other places, which is used for students to practice hairstyling, and the hair on these hairstyles is made by real people's hair, and the hairstyle models made by real people are more expensive, but they are easier to use.

2. Wigs and beards

In addition to the wigs that people usually wear, the wigs and beards used in rubber film and television dramas are also made of these hairs, and some of them are used to make hair extensions, which are very popular hair extensions in hair salons.

Ha. You're laughing at that. Let me tell you what I think.

Hair is an appendage that protects the head from damage from external bacteria.

Hair can define your appearance, and hair can play a role in regulating body temperature. Heat is retained in winter, and blood vessels dilate in summer to release heat.

Hehe, I think that's all.

Ai (reply).

Please support my answer! Thank you ha!