What is healthy and environmentally friendly nail polish?

In recent ten years, the safety of cosmetics has been greatly improved, but it is an indisputable fact that harmful chemicals in nail polish can penetrate into the human body through the nail bed. If you like to apply nail polish, you should know three chemical components commonly used in nail polish that are harmful to your health: toluene, dibutyl phthalate and formaldehyde (usually these three substances are the "three noes" values in environmentally-friendly formula nail polish). Soon, the "four noes" and "five noes" nail polish standards will also be introduced soon.