Optimum Nutrition Serious Mass

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  • Regular price $134.00


Serious Mass is the ultimate in weight gain formulas. With 1,250 calories per serving and 50 grams of protein for muscle recovery support, this instantized powder makes the ideal post-workout and between meals shake for sizing up your goals. Serious Mass provides you with the tools you need to pack on the pounds and help you develop the physique you’ve always wanted.


Adding Calories Has Never Been This Easy or Tasted So Good

1,250 Calories

50 Grams of Blended Protein

Over 250 Grams of Carbohydrates with NO ADDED SUGAR

Creatine, Glutamine and Glutamic Acid

25 Vitamins and Essential Minerals