MASS BUILDER is a scientifically proven weight gaining supplement to your nutritional program, which has been developed after extensive research. It's every serving delivers key muscle building ingredients like fast acting whey protein (Ultra Filtered Lactose Free Whey Isolates & Whey Concentrate), Glutamine, Creatine, BCAAs Complex, Vitamin & Mineral and is consolidated with 1295 calories. The high quality and precise quantity of weight gaining nutrients in MASS BUILDER makes it real power house of mass building and leaps ahead of common weight gaining supplements.