Optimum Nutrition Serious Mass (5.4kg)
ON Serious Mass is the ultimate weight gainer. If you find it difficult to gain weight, you may find a serving of Serious Mass will help to pack on the pounds and develop the physique you have always wanted.
With its high calorie, weight gain formula, Serious Mass also works as a protein to support muscle growth. Bulk up efficiently and gradually with this easy to mix, delicious tasting drink.
6 Flavours available, Chocolate, Banana, Chocolate Peanut Butter, Chocolate Mint, Strawberry and Vanilla. Serious Gains, Serious Taste, Serious Mass™.
Free shaker available with this purchase.
- 1,250 calories per serving
- 50g of proteins and 250g of carbohydrates per serving
- No added sugar
- Enjoy between meals &/or post-workout
- Add two heaped scoops
- New users usually start with 1/2 a serving and then gradually increase