COSCIENS Biopharma Inc. is a life science company that develops and commercializes products for the cosmeceutical, nutraceutical, and pharmaceutical markets in the United States, Germany, Colombia, the United Kingdom, and internationally. It operates through Active Ingredient and Pharmaceutical segments. Its active ingredients include oat beta glucan for cholesterol reduction, yeast-derived beta glucan as an immune booster, and avenanthramides for inflammation reduction. It also provides Macrilen/Ghryvelin (macimorelin), an orally available ghrelin receptor agonist for diagnosing adult and childhood-onset growth hormone deficiency, as well as for endocrinology and oncology indications. The company sells through its distribution network and has license agreements with Pharmanovia, MegaPharm Ltd., ER Kim Pharmaceuticals Bulgaria Eood, NK MEDITECH Ltd, Agriculture Canada, and the University of Alberta. Formerly known as Aeterna Zentaris Inc., it changed its name to COSCIENS Biopharma Inc. in August 2024. Incorporated in 1990, it is based in Toronto, Canada.