Cinnamon has a long history of culinary and medicinal uses. Its high aldehyde content makes it a useful antimicrobial and antiseptic. Cinnamon has been a highly prized commodity since antiquity and is one of the most recognizable scents in the world. Cinnamaldehyde is the main constituent in the bark oil. It is used in perfumery to give a blend lift and strength, and is considered a mild fixative. The cinnamon bark is used for gastrointestinal problem, diarrhea, and gas. It is also used for stimulating appetite and to treat infections caused by bacteria and parasitic worms.