Depending on what you find, you can switch nail polish brands.
A study by the Environmental Working Group (EWG) and Duke University shows that wearing nail polish for 10 to 14 hours can have unexpected (and unwanted) side effects.
The study involved 26 volunteers who applied nail polish and then went about their daily business. After 10-14 hours, the researchers tested and detected triphenyl phosphate (TPHB) in each participant. Furthermore, a press release accompanying the study noted that “chemicals were detected in women’s urine after painting their nails.”
“Importantly, two of the eight TPHP positives were not identified on the product label,” the press release said. “Duke researchers chose not to name these two polishes and six other polishes containing TPHP, and the lab tested only 10 samples, not all of the manufacturers’ nail products.”
The study authors also speculate that some manufacturers may change their labels to report the presence of TPHB before the study is released.
So, why might this be such a big deal?
TPHB is a plasticizer used to make products more flexible. In the case of nail polish, premature cracking can be prevented.
Several studies have shown that TPHB alters the endocrine system of animals and the hormonal and reproductive systems of humans. Some scientists are concerned that the chemical may increase the risk of certain diseases.
Additionally, some studies have shown an association between TPHB and weight gain. It affects the body’s metabolism and increases the risk of obesity.