NPL Hyper Gain Mass is an ultra-high-calorie, heavy-duty mass gainer explicitly engineered for "hard-gainers" who struggle to pack on weight and muscle. While NPL Pro Mass prioritizes cleaner, real-food carbohydrate sources, Hyper Gain is NPL's high-carb, fast-absorbing weight formulation optimized for aggressive mass phases, rapid glycogen replenishment, and heavy caloric surpluses.