1. Two separate scientific studies support the key ingredient (C. canephora robusta) with an average weight loss of 10.95 lbs. in 60 days with a low-calorie diet in the first study, and 3.7 lbs. in 8 weeks with a calorie-reduced diet and moderate exercise in the second study. 2. In short-term studies, research shows that caffeine can help temporarily promote increased energy expenditure (calorie burning). 3. Contains caffeine to increase energy, boost metabolism and enhance focus.