More and more workplaces are implementing free and readily accessible menstrual products in washrooms, though lately, there may be greater hesitation from those who usually reach for tampons. A recent study published in Environment International went viral on social media after it found that a selection of tampons from several widely available tampon brands contained measurable concentrations of potentially dangerous metals.

No one wants to hear that the products they’ve been using for several days each month contain arsenic, lead and other harmful metals. It’s no wonder that many have indicated an immediate desire to stop using tampons, expressing outrage at the study’s findings—but it’s important to read the fine print.