Green Tea Extract comes from the natural dried leaves of the tea plant (Camellia sinensis) and has been used for thousands of years in Asia as a beverage and an herbal medicine. Green Tea Extract contains natural caffeine that can activate the central nervous system, which in turn increases the body’s ability to burn extra calories and unwanted fat. This process is known as thermogenesis. More importantly, Green Tea Extract is an excellent source of potent, bioflavonoid rich compounds that are high in polyphenols, which are a special class of bioflavonoids. Catechins, and in particular (-) Epigallocatechin Gallate (EGCG), is the most important polyphenol and has the strongest antioxidant action. Research has shown that EGCG is more powerful than vitamin E in neutralizing free radicals.