Them shits is everywhere.
This would explain the terrible rashes I get when I wear mine lol.
I’m not exactly sure, but I don’t think, that you’d get rashes, besides having an allergy to that specific molecule, but as they are not really easily broken up, they are also not very reactive friendly - at least that’s my interpretation
So, having them block up some stuff is some reasonable concern and we never really know what happens with them inside our body, but I would guess that your rashes come more from the humidity under the wristband and the constant friction of it - at least my arm doesn’t really like that, but to have a heart monitor on my wrist, I need to wear it quite tight.
And could also be an allergy to something else in the wristband
Edit: I’m too tired and should stop writing…
Scientists do not currently understand how readily PFHxA transfers into the skin, nor the potential health effects it poses once it gets there, though Peaslee says recent studies suggest that a significant percentage could pass through human skin under normal conditions.
This seems to be there important missing link here. We know that these chemicals are everywhere, but don’t yet know if they pass through the skin or off there are any significant impact. I wish they cited which studies have looked into this.
Oh no! Forever is such a long time!