GNC Amp Sustained StrwBeyond Strawberry Milkshake, 26 Servings, 30.5 oz (Pack of 1)

GNC AMP - Sustained Protein Blend GNC AMP Sustained Protein Blend is a protein powder combining hydrolyzed whey protein, whey concentrate, milk protein isolate, and micellar casein. Go The Distance With 4 Types Of Protein: GNC AMP Sustained Protein Blend is an innovative protein powder combining hydrolyzed whey protein, whey concentrate, milk protein isolate, and micellar casein—delivering up to 7 hours of muscle fuel throughout the day. Train Harder & Recover With Rapid-Release Amino Acids. Sustained Protein Blend harnesses the power of distinct protein varieties, including rapid-release protein for an immediate surge of BCAA when your muscles need it most. Keep Fueling Gains With Ongoing Muscle Support. GNC AMP's protein blend also includes slower digesting, sustained-release proteins with up to seven hours of muscle fuel for ongoing muscle protein synthesis.