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Optimum Nutrition SERIOUS MASS available in 2.7KG and 5.45KG


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


Guaranteed delivery this Thursday, 23 September


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.

Additional information

Weight 5.45 kg

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