National Federation of industry and Commerce Cosmetology Cosmetics Yan Shixiang, a vice chairman of the expert committee of the chamber of Commerce, and professor of Beijing Technology and Business University, said that the main component of nail polish is organic solvents. Harmful substances in nail polish can penetrate into the human body through the nail groove. For example, benzene and benzene derivatives, o-benzoic acid two esters and other chemicals, play a role in softening nails, but absorbed by the body can affect the central nervous system, long-term exposure to benzene can lead to leukemia and cancer. Frequent manicure can also cause the nail color to darken and turn gray, so that thick nail polish can only be used to cover up. Such a vicious cycle will damage the surface of the nail, like the enamel like substance on the surface of the tooth, causing nails to break and break.

For many women who like to attach crystal false armor, Yan Shixiang reminds that sticking the crystal fingernail to file the skin of the nail root, which easily leads to inflammation of the nail groove, which will cause the front end of the finger to become hypertrophic and deformed.