Most hair gel products contain alcohol solvents and latex particles, which have carcinogenic effects. Freon and dichloromethane are used as spray additives. In the process of using hair gel, these harmful chemicals will produce a large number of fine particles floating in the air, which has a strong stimulating effect on eyes, nose, pharynx and trachea. They can not only cause corneal irritation symptoms such as photophobia, tears, pain and congestion, but also destroy respiratory epithelial cells and ciliary system, cause inflammatory reaction of mucosal tissue, and induce or aggravate allergic rhinitis, pharyngitis, tracheitis and asthma.
Hair gel contains alcohol, which will make hair dry and dull if used too much. A study by Imperial College London, University of London, found that the exposure of pregnant women to hair gel, mousse and styling water in the early pregnancy may increase the risk of hypospadias in boys. This disease will seriously affect urination function and even destroy fertility. "If adult men use hairdressing products for a long time, it will also do great harm to fertility."