23% off
Optimum Nutrition Serious Mass
$45.99
$59.99
or 4 payments of with 
Unit price
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SKU: 8248
Description
HIGH-CALORIE WEIGHT GAINER
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 Serious Mass
Customer Reviews
5.0 Based on 6 Reviews
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Loading more... Norman F. Andrew B. marcus s. Naziyah D.
12/10/2024
NF
United States
I recommend this product
Serious Mass
I really love the taste and progress of taking Optimum Nutrition Mass
12/05/2022
AB
United States
The best mass gainer on the market in my opinion
The flavor goes well with so many foods and it is also great stand alone
11/14/2022
MS
United States
lol
it was ok, notice weight gain within a week
04/09/2022
ND
United States
Serious Mass Weight Gainer
It was amazing and results were instant, I’ll definitely be making another purchase!!!!