Designed to boost your caloric intake with the right nutrients 45g of whey protein concentrate, milk protein concentrate and whey protein isolate 100% ultra-fine oat powder as a main source of carbs, maltodextrin and dextrose. Extreme Mass provides healthy fats, fiber, and creatine to ensure your body has what it needs to grow. If you have trouble getting the calories needed to support lean muscle or suffering of a fast metabolism, then a high calorie, high protein weight gainer may be the answer you need to gain weight and to build rock solid lean muscle mass. Unfortunately, weight gainers these days are just cheap protein powders loaded with sugar to up the calorie content. While formulating Basix Weight Gainer, the team of experts has decided to focus on quality, rather than decadent quantities. Let’s take a closer look.