ON Serious Mass 12lb + Pre Advanced Pre Workout + FREE Box of Protein Crunch

SKU: 44150

$184.85 $139.00 inc. GST

or 4 payments of $34.75 with Afterpay



OPTIMUM NUTRITION 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

Optimum Nutrition PRE Advanced Pre Workout unleashes amplified energy, focus, and supports enhanced endurance to help you reach the pinnacle of your game, crush your next set, get that last rep, and achieve some true gains. Whatever your goals, accomplish them all with the pre-workout from the most trusted brand in sports nutrition.


Nutritional Info


Additional information

ON Serious Mass

12lb Banana, 12lb Chocolate, 12lb Strawberry, 12lb Vanilla

ON Pre Advanced

Berry Blast, Raz Lime Mojito, Strawberry Mango Daq

FREE ON Protein Crunch

Milk Chocolate Box, PeanutButter Box, Choc Mint Box