Bio-Botanica, Inc. Cornflower In Propylene Glycol is a product from the Asteraceae plant family, known by its Latin name Centaurea cyanus. Its key chemical constituents include chlorogenic, p-coumaric, caffeic, and syringic acids, quercetin, kaempferol, eriodictyol, and taxifolin derivatives, as well as apigenin derivatives. This product is utilized in food, beverages, and dietary supplements for immune, digestive, and respiratory support. It is also used in the cosmetic and personal care industry, particularly for skin applications.