The dangers of nail polish lie in its toxicity. Some modern nail care cosmetics contain the following components, capable of seriously damaging your health:

Toluene — a solvent which gives the nails a smooth finish and preserves the pigment. Toluene can affect the central nervous system and cause reproductive disorders. Headaches, weakness, fainting, and nausea are just some of the likely consequences of using substandard nail polish.
Formaldehyde — a colorless gas that helps increase a polish's storage life. If you're suffering from allergies, contact with formaldehyde can cause dermatitis and possible chemical burns. In more severe cases, it can trigger heart rhythm disorders, convulsions, and cancer.
Dibutyl Рhthalate is used as a fragrance. The presence of this dangerous component may cause you endocrine disorders, gynecological diseases, and diseases of the respiratory tract.

Scientists conducted a study with a group of 24 women. 6 hours after painting their nails, most of the participants were displaying elevated levels of diphenyl phosphate — a derivative of triphenyl phosphate which is formed in the process of metabolism. 10 hours after the beginning of the experiment, the levels of diphenyl phosphate in the bodies of all participants rose to 7 times above the norm. These results are truly alarming.

What Happens to Your Body 10 Hours After You Apply Nail Polish