Hordeum Vulgare seed flour is the flour from the finely ground seeds of barley, Hordeum vulgare L., Graminae https://cosmetics.specialchem.com/inci-ingredients/hordeum-vulgare-seed-flour# Hordeum vulgare, commonly known as barley, is a member of the grass family grown in temperate climates around the world. Barley is part of various foods and alcoholic beverages. When used in skin care products, hordeum vulgare seed extract provides many benefits due to antioxidant properties. https://thedermreview.com/hordeum-vulgare-seed-extract/