From the Manufacturer:
Certified Potency Caffeine-Free Green Tea-Power is the highest quality, most potent and most effective form of Green Tea Extract available. Decaffeinated Green Tea-Power is a rich source of polyphenois, 20% (75 mg), and bioflavonoids per capsule. Utilizing a natural decaffeination process, Decaffeinated Green Tea-Power is standardized with the greatest concentration of naturally-balanced active principles while retaining and enriching all the whole-plant synergistic benefits, thus making it one of the world's first and purest concentrated plant extracts.