A new law has been signed in New York State that will require companies to list all ingredients in menstrual products like tampons and pads.

Gothamist reports that Governor Andrew Cuomo has signed a bill into law that is the first like it in the U.S. This law will require menstrual product manufacturers to list all of the ingredients in the product on the label. This applies to tampons, pads, menstrual cups, and period underwear. The law is set to take effect in six months.

This wasn't previously required, even though some products go inside the body because they are considered medical devices, according to Gothamist. There have been rumors and theories that menstrual products contain dangerous things like asbestos. The hope is that listing the ingredients will eliminate fears of these harmful substances.

Tampons, typically made of cotton, have been altered by manufacturers depending on the price of cotton, with things like synthetic materials and rayon. According to Gothamist, they have been known to have compounds like carbon disulfide and methylene chloride, which are known reproductive toxins.

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