Optimum Nutrition Serious Mass 5.4kg
Serious Mass: The ULTIMATE in weight gain formulas. Serious Mass supplies you with the tools you need to pack on the pounds and develop the physique you've always wanted.
BEYOND THE BASICS
Adding Calories Has Never Been This Easy or Tasted So Good
50 g of BLENDED PROTEIN
Over 250 g of Carbohydrates with NO ADDED SUGAR
Enhanced with Creatine, Glutamine, and Glutamine Peptides
25 Vitamins and Essential Minerals