| Nail polish is also known as "nail varnish". Its main components are 70% - 80% volatile solvents, about 15% nitrocellulose, a small amount of oily solvents, camphor, titanium dioxide and oil-soluble pigments. The film formed by nail polish after fingernail is firm and has a proper luster. It protects the nails and gives the nails a sense of beauty.
Nail polish is basically made from nitrocellulose, with acetone, ethyl acetate, ethyl lactate, and two acid tincture of benzene. This nail polish is applied to nails, which can make the nails red and moist, and will not fade for a long time. However, most of these raw materials have certain biological toxicity, which should be avoided to enter the human body and cause chronic poisoning. After applying nail polish, do not take food with your hands, so as not to stick nail polish to food, and eliminate "poison from mouth". Special attention should be paid to oily fingers, cakes and other oil finger foods that can not be eaten by hand, because the compounds contained in nail polish are fat soluble compounds that are easily dissolved in oils and fats, so be careful.
At the same time, nail polish contains a substance called phthalate ester, which is absorbed by human body for a long time. It is not only harmful to human health, but also the most likely cause of miscarriage and malformation. Therefore, pregnant or lactating women should avoid using cosmetics labeled "phthalate ester", which can cause abortion or infant deformity. We know that although phthalate esters are painted by future mothers, they are harmed by children in the abdomen. In addition, this harmful substance can also harm the organs below the waist of infants, causing genital deformities. Therefore, when a mother uses cosmetics containing this substance during breast-feeding, her child may grow up with infertility or impotence. This is the consequence of phthalate esters, a substance that prevents androgens from acting.
Nail polish can be preserved for 2 years under normal conditions, and it can be kept for 3 years under closed condition. |
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