Raspberry ketones (RK) are similar in structure to synephrine and capsaicin, which are both noted as being thermogenic due to their release of norepinephrine. Norepinephrine increases lipolysis (which means the breakdown of 'white' fat cells), enhances focus and attentiveness, and suppresses appetite. Raspberry ketones may help aid in fat loss through preventing fat storage through causing HSL (hormone-sensitive lipase) to enter fat cells. HSL is the enzyme that once inside the fat cell, slices apart fat molecules into various fatty acids in preparation for fat metabolism. In laymans terms, you cannot have maximum lipolysis without ample supplies of HSL inside the fat cell.
As a dietary supplement, take 1 capsule 1 to 3 times daily, 30 minutes prior to meals.