Toxins & heavy metals
Tampons are made from cotton, rayon and synthetic fibers. Some are bleached with chlorine, which can leave trace amounts of dioxins — chemicals linked to hormone disruption, immune suppression and even long-term cancer risk.
A 2024 study found that all tampons tested contained harmful toxins, whether organic or not. Your vagina is highly permeable — anything placed there can absorb into the bloodstream.