A study found that women with higher levels of a common sunscreen chemical (oxybenzone) in their bodies also had more protein in their urine, which can be an early sign that their kidneys aren’t working as well as they should.

This study looked at whether sunscreen chemicals like oxybenzone harm human health, but it didn’t find strong proof that they hurt kidneys — and it even said the evidence is too weak to be sure. The claim says there’s clear proof of kidney damage, but this study says otherwise.