on qualified purchases at our brands now thru 5/4/26.
About This Item
Serious Mass is the ultimate muscle building and weight gain formula.
BENEFITS & FEATURES:
With 1,250 calories per 2-scoop serving and 50 grams of protein to support muscle recovery
This 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 support your weight gains goals
Brand : Optimum Nutrition
Country of Origin : United States of America
Style : 2730311, 2730096, 2730097
Web ID: 16ONUUNSRSMSSBNN6GAA
REVIEWS
4.7
100%
Recommended
243 Reviews
Justin
Verified Purchase
6 months ago
Serious Mass Protein Power
I love this stuff! It taste so good and it helps me achieve my goals.
Verified Purchase
6 months ago
Optimum Nutrition Serious Mass Is Great!
Optimum Nutrition Serious Mass Vanilla is really great tasting. I use it every day and will continue purchasing this product although I might try Chocolate next time for a treat.
Sharp
Verified Purchase
8 months ago
Good Chocolate Taste
taste very good, great for wanting to gain weight.
Shot
Verified Purchase
9 months ago
Wooo!
Great for mass!! This is what you need if you want to get the real gains
Dave
Verified Purchase
10 months ago
Double Chocolate
Tastes amazing and mixes very well in shaker bottle
