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Supporting refreshing sleep and maintaining healthy sleeping patterns
Contains Whey Protein Isolate
Muscle contains the highest concentration of Carnitine in the body
Available in 60
Glutamine works as a nitrogen shuttle
Optimum Nutrition Serious Mass Protein Powder 12lb creatine supplement Supporting refreshing sleep and maintainingSERIOUS MASS FOR SERIOUS MUSCLE Optimum Nutrition Serious Mass is considered the ultimate protein formula for individuals looking to gain weight. It specifically caters to hard gainers and ectomorphs, providing the necessary calories to pack on pounds of quality muscle and develop a strong, solid, and muscular physique. Each serving of this mass gainer delivers 1250 calories, along with a blend of 50 grams of high quality protein and over 250 grams of
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