Summary :
One of the best teas in the world, oolong is ideally purchased loose leaf to retain all the flavor. Made from the Camellia sinensis plant, this partially fermented tea doesn't contain much caffeine. Oolong tea is rich in L-theanine, an amino acid that slows the absorption of caffeine and provides a steady energy boost. Benefits of Oolong Tea Contains antioxidant polyphenols that can boost metabolism. May reduce the risk of heart disease. Regular consumption reduces the risk of cognitive disorders. Can prevent dental caries.