Targets Stubborn Fat Areas. Cortisol is a hormone in your body that increases fatty deposits in your trouble areas (Stomach, hips, waist, and thights). Stress, Dieting and excercise training are key factors in triggering cortisol. Lean FX, with its exclusive corticometric properties, lowers your cortisol levels allowing you to effectively target and eliminate stubborn fat areas while preserving lean muscle. Lean FX is the first cutting-edge weight loss product that utilizes cortisol reduction with NO STIMULANTS to attack and eliminate fat stores quickly.