1, hair model

Part of the collected hair is used to make hair models, which we can see in many beauty salons and other places, so that students can practice their hair styles. Some of the hair on these hairstyles is made of real hair, and the hair models made of real hair are more expensive, but more useful.

2, wig hair

Many wigs and beards have been taken away. These wigs are not only wigs that people usually wear, but also wigs and beards used in film and television dramas are made of these hairs, and some of them are used for hair extensions, which are popular in hair salons now, connecting short hair with long hair. This kind of wig and beard is also more expensive with real hair.

3. Soy sauce raw materials

Hair is rich in amino acids, which are also raw materials for soy sauce production, so some illegal small factories will use amino acids extracted from broken hair residue to make soy sauce for profit. The cost of soy sauce produced by this method is very low, but it is very harmful, because modern people's hair is dyed too much, and there will be a lot of chemical residues. If people often eat such soy sauce, it will have a very adverse effect on their health.