Quote:More than a dozen metals — including lead and arsenic — showed up in a broad array of tampons sold across the U.S. and Europe, raising concerns about menstruation products used by millions, a recent study found. 

Tests found lead in all 30 tampons from 14 brands that were purchased from major online retailers and stores in the U.S., U.K. and Greece, according to the findings published this week in the journal Environmental International.

"Our findings point towards the need for regulations requiring the testing of metals in tampons by manufacturers," the researchers wrote.