Ellagic acid is a dimeric derivative of gallic acid found abundantly in pomegranate (Punica granatum) fruit, peel, and seeds, as well as in berries and walnuts. It is extracted from pomegranate husk using hydroethanolic methods and purified by crystallization.
Ellagic acid and its gut metabolite urolithin A are extensively researched for antioxidant, anti-proliferative, anti-inflammatory, and photoprotective properties. The compound inhibits melanin production and collagen degradation. Commercially, ellagic acid is used in antioxidant supplements, skin-brightening cosmeceuticals, cardiovascular health products, and premium anti-aging formulations.