Bio-Botanica, Inc. Plantain Leaf In Glycerin is a product from the Plantaginaceae plant family, with the Latin name Plantago. Its key chemical constituents include flavonoids, alkaloids, terpenoids, phenolic acid derivatives, iridoid glycosides, fatty acids, polysaccharides, and vitamins. This product serves the functional categories of respiratory and digestive support and is used in the cosmetic and personal care industry, particularly for skin and nervous system applications.