common commercial-sunscreen chemicals: oxybenzone, avobenzone, octocrylene and ecamsule.
All four chemicals were found to have entered the users’ bloodstreams at levels far exceeding U.S. Food and Drug Administration safety thresholds.
Still, the UCSF study team did not conclude that anyone’s health was at risk. And some experts believe any concerns that might be raised are outweighed by the anti-cancer and anti-aging benefits of FDA-approved sunscreens.
One of those experts is Dr. Steven Wang, director of dermatology at Memorial Sloan Kettering Cancer Center, in Basking Ridge, N.J.
“There’s tons of scientific data that sunscreen with SPF of at least 15 reduces the risk for both
