Sunscreen enters bloodstream after just one day of use, study says
(CNN)It
took just one day of use for several common sunscreen ingredients to
enter the bloodstream at levels high enough to trigger a government
safety investigation, according to a pilot study conducted by the Center
for Drug Evaluation and Research, an arm of the US Food and Drug
Administration.
The study,
published Monday in the medical journal JAMA, also found that the blood
concentration of three of the ingredients continued to rise as daily
use continued and then remained in the body for at least 24 hours after
sunscreen use ended.
The four chemicals studied -- avobenzone, oxybenzone, ecamsule and octocrylene -- are part of a dozen that the FDA recently said needed to be researched by manufacturers before they could be considered "generally regarded as safe and effective."
So, should you stop using sunscreen? Absolutely not, experts say.
"Studies
need to be performed to evaluate this finding and determine whether
there are true medical implications to absorption of certain
ingredients," said Yale School of Medicine dermatologist Dr. David
Leffell, a spokesman for the American Academy of Dermatology. He added
that in the meantime, people should "continue to be aggressive about sun
protection."
"The
sun is the real enemy here," said Scott Faber, senior vice president
for government affairs at the Environmental Working Group, or EWG, an
advocacy group that publishes a yearly guide on sunscreens.
"It's
not news that things that you put on your skin are absorbed into the
body," Faber said. "This study is the FDA's way of showing sunscreen
manufacturers they need to do the studies to see if chemical absorption
poses health risks."
The need to screen
https://edition.cnn.com/2019/05/06/health/sunscreen-bloodstream-fda-study/index.html
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