Enhanced with Glucose Management Proprietary Blend Helps Maintain Healthy Glucose for Those Already Within Normal Range Dietary Supplement Cinnulin PF is a patented natural water extract of cinnamon standardized to bioactive polymers while removing unwanted fat-soluble compounds found in cinnamon. Each serving contains a minute amount of caffeine (0.4 mg max). Since a cup of coffee contains around 40-60 mg of caffeine, the negligible amount of caffeine in this supplement will not induce a stimulating effect. Best results are achieved by taking this product along with maintaining a proper diet and regular exercise.