MHP brings the most advanced mass-promoting technology to your nutrition program with up your mass. The result of over 10 years of research and development, up your mass is so powerful, it can help pack on lbs. Of muscle onto the frame of the hardest gainer in just 5 weeks. The superior quality and quantities of muscle building nutrients in up your mass far outweigh those used in the competitor’s weight gain formulas. You will never find another weight gainer that works as quickly and effectively as up your mass.