Rk maxx is the most comprehensive, progressive raspberry ketone product on the market. Not only does it have raspberry ketone but it also includes African mango. Both of these supplements are recommended for your weight loss strategy. The rest of this powerful proprietary formula includes antioxidants, fat burners, and a mild stimulant creating the most progressive weight loss formula you can find. Acai Fruit, green tea extract, resveratrol, caffeine anhydrous, apple cider vinegar (powder), kelp, grape fruit (powder). Raspberry ketones are known as a natural thermogenic due to the release of norepinephrine. Raspberry ketones can help suppress the appetite and aids in the breakdown of fat molecules to be used for fat metabolism.