Weight loss or body fat reduction accompanies the athletes, but as well as non-athletes most of their lifes. The objective for reduction may be for competition, improvement of body into swimsuits, or struggle with overweight or dangerous obese. Obesity and overweight are diseases of excessive deposit of fat in the body. The proportion of fat in the body is normally in 25 to 30 percent for women and 20 to 25 percent for men. Obesity and overweight shortens your life and bring a series of complications. Overweight is considered as a precursor of obesity. For weight reduction, it is important, of course, correct adjustment of diet and exercise, but why not make the overall effort easier with the use of supplements for weight loss. Most of weight reduction supplements are based on substances L-carnitine (carnitine), Synephrine (synephrine), Bioperine® (extract of black pepper), Green Tea Extract (green tea extract), an extract from the bark of the white willow or their combination supplemented with adjuvants that increase or enhance their effects.