My hometown is in the countryside. When I was a child, I liked to have long hair. Every time I go to the street, I am chased by my aunt who collects my hair and asks if she sells it. I'm troubled. The price of this kind of wool is generally high. One of my classmates bought more than 1000 hair.

They usually buy these hairs at such a high price for five purposes:

The first one, which we can think of the most, is to make wigs and sell them to people who need them. Mainly people who suffer from hair loss and girls who love beauty. People who are troubled by hair loss cover up their embarrassment with wigs; Girls who love beauty may want to try different hairstyles, but they don't want to go to the barber shop for haircuts frequently, so they will choose to wear wigs to satisfy themselves.

Second, as a training tool for apprentices studying beauty salons. In some advanced hairdressing training centers, apprentices use real hair when practicing hair-cutting techniques, which is more effective.

Third, making cosmetics Our hair contains a lot of amino acids, which are the basic materials for making many cosmetics. People can use science and technology to extract amino acids from hair and use them to make cosmetics.

Fourth, make your hair into a toy. Some children like toys made of hair and real hair. Using real hair can make toys look more exquisite and realistic, but relatively speaking, the price is more expensive.

Fifthly, it is made into nutrient solution and feed. Hair contains a lot of protein. After chemical treatment, these protein can be hydrolyzed with high concentration hydrochloric acid, and 28 kinds of amino acids can be decomposed. These amino acids can be used to produce nutrient solution and feed.