Companies selling tampons, pads, menstrual cups or period underwear in New York State are now required to disclose all intentionally added ingredients on product labels. In 2019, New York became the first state in the nation to require period product makers to disclose ingredients by passing A.164-A/S.2387, introduced by Assembly Member Linda B. Rosenthal (D-Manhattan) and Senator Roxanne J. Persaud (D-District 19). The law went into effect this October. There is no federal requirement to disclose, and without requirements, regulations or clear standards, only a few companies were voluntarily providing limited ingredient information. While passed in New York, this law sets a new precedent for period product ingredient disclosure.