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🚚 We offer a 3 Serve Return guarantee! You have 30 days to try up to 3 serves, if you don't like the flavour or performance you can return it.
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Multiple benefits in a single scoop - complements every stack.
Optimum Nutrition's Serious Mass is the ultimate weight gain formula. With 1,250 calories per serving and 50 grams of protein for muscle recovery, this instantised powder makes for a sizeable post-workout and between-meals shake. Optimum Nutrition's Serious Mass™ protein blend provides easy-to-digest protein, boosting your muscle protein synthesis and providing quick absorbable protein for better recovery and bigger gains after an intense workout session. Make sure to follow the directions of use at the back of the tub to enjoy the best effects.
Serious Mass
$169.95
Prep time: 2 minutes | Servings: 1
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