SERIOUS MASS OPTIMUN NUTRITION 16 SERVINGS 12 POUNDS (5.44 KG)

Serious Mass is the ultimate formula for building muscle and gaining weight. With 1,250 calories per 2-scoop serving and 50 grams of protein to support muscle recovery, this powder is the ideal post-workout and between-meal shake to boost your goals. Serious Mass gives you the tools you need to support your weight gain goals.