Raspberry ketones are unique compounds that give raspberries their distinctive aroma. Researchers have recently determined that like many other fruits, raspberries contain a number of biologically active, naturally-occurring constituents beneficial to good health, including this specific ketone that is unique to raspberries: 4-(4-hydroxyphenyl)-2butanone. Each vegetarian capsule of Futurebiotics Raspberry Ketone + Green Tea provides 3mg of pure Raspberry Ketone, along with 2mg of decaffeinated Green Tea extract.