In this section the following words have the meanings indicated. “Confidential substance” means any ingredient: For which a claim has been approved by the U.S. Environmental Protection Agency for inclusion on the confidential portion of the federal Toxic Substances Control Act Chemical Substance Inventory; For which the manufacturer of the menstrual product or the supplier of the ingredient claims protection under the federal Defend Trade Secrets Act; or That is generally recognized as safe by the U. S. Food and Drug Administration under 21 C.F.R. § 170.30. “Ingredient” means any intentionally added substance in a menstrual hygiene product that serves a technical or functional purpose in the finished product, including any fragrance or coloring. “Menstrual hygiene product” means a disposable or reusable product used for the purpose of absorbing or containing menstruation or vaginal discharge, including sanitary pads, tampons, and menstrual cups. Beginning April 1, 2028, a manufacturer of menstrual hygiene products shall include a list of all ingredients listed in order of predominance and displayed prominently in conspicuous type on each consumer–facing package of menstrual hygiene products sold in the State. A manufacturer may list a confidential substance by its common name to protect confidentiality.