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Smartwatch and fitness tracker bands have elevated levels of PFAS, study says. How concerning are these forever chemicals?

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A new study found that some smartwatch and fitness tracker bands may expose the skin to forever chemicals.

More expensive wristbands made from fluorinated synthetic rubber can have especially high amounts of a particular forever chemical called perfluorohexanoic acid (PFHxA) The study was published in the American Chemical Society’s journal Environmental Science & Technology Letters .

A significant fraction of short-chain PFAS deposited on the skin can migrate into the dermis.

Some fraction will actually enter the bloodstream after passing through our skin.

If you have a smartwatch or fitness tracker band that contains fluoroelastomer, Alan says there’s no need to panic.