Sunscreen Chemicals Seep Into Your Bloodstream – Surpassing Toxicology Threshold

Researchers at the U.S. Food and Drug Administration revealed the results of a small clinical trial designed to test how four of the most common sun-filtering molecules on the market behave after they’ve been sprayed on and rubbed in.

The results, published in the journal JAMA, show that contrary to what sunscreen manufacturers have been saying, UV-blocking chemicals in only a few hours after application infiltrate the bloodstream and shoot up to concentrations above the FDA’s toxicology threshold.

The 24 participants randomly assigned four commercially available sunscreens: two sprays, a lotion, and cream showed the same absorption levels, which except the cream remained elevated through the end of the study—three days after participants had ceased spraying and smearing.

With sunscreen application growing into a daily routine, U.S. health regulators are now asking U.S. sunscreen makers to submit additional data to ensure the chemicals don’t mess up people’s hormones, affect their reproductive systems, or cause cancer.

Source: WIRED, Sunscreen Chemicals Soak All the Way Into Your Bloodstream