When you’re unable to have a meal for several hours (like when you’re sleeping), having a protein source that’s slow-digesting is important to help avoid muscle breakdown! The primary protein source in Phase8 is just that – a slow, sustained-release protein. In fact, it has the unique ability to slowly release amino acids into your bloodstream for 8 hours after taking it! (Lacroix et al., 2006. The American Journal of Clinical Nutrition. 84:1070-9)WHEY PROTEIN POWDER – MuscleTech Phase8 is designed to feed your muscles the highest quality blend of protein available. Each serving delivers 26g blend of proteins taken from multiple sources with variable digestive ratesCASEIN PROTEIN plus WHEY PROTEIN BLEND – Phase8 is a premium blended protein formula that feeds your muscles for 8 hours, with high biological value and sustained-release protein. This makes Phase8 the perfect protein for any time of the day or nightPROTEIN POWDER for MUSCLE GAIN – Phase8 supports protein synthesis by delivering incredibly high doses of BCAAs, glutamine and essential amino acids (EAAs)MUSCLE RECOVERY – Whey protein promotes rapid recovery from exercise and supports an insulinogenic response for improved nutrient delivery for men and women. Builds lean muscle, increases strength and enhances performanceMuscleTech was born out of an obsession to redefine the limits of science and human potential. With their commitment to research, development and innovation, they've been globally recognized as one of the leading sports nutrition brands in the industry and continue to be one of America's elite names for redefining performance through cutting-edge products and high-quality ingredients. Backed by America's #1 selling sports supplement company, and with distribution in over 140 countries, MuscleTech has emerged as one of the most recognized sports nutrition brands worldwide.