Phenolic compounds are a class of chemical compounds that are widely distributed in plants and have been found to have various biological activities. These compounds are characterized by the presence of a phenol group, which consists of a six-membered aromatic ring with an attached hydroxyl group. Phenolic compounds have been shown to exhibit antioxidant, anti-inflammatory, antimicrobial, and anticancer properties, among others. Research in this area focuses on the identification, isolation, and characterization of phenolic compounds from natural sources, as well as their potential health benefits and applications in food, pharmaceutical, and cosmetic industries. Studies have also been conducted to investigate the bioavailability, metabolism, and physiological effects of phenolic compounds in the human body.