Optimum Nutrition Serious Mass Size:5.44 kg (Many materials on the market

(Many materials on the market are produced from Genetically modified corn)

* (Derma test: Eight-week independent clinical studies involving 10 women (2012))

Mild Joint aches

Steric Acid)

Optimum Nutrition Serious Mass Size:5.44 kg (Many materials on the marketSERIOUS MASS FOR SERIOUS MUSCLE To gain weight, you need to consume more calories than you expend. For many aspiring to hit their calorie goals and put on size, a highly active metabolism, weak appetite or on the go lifestyle can make it a real challenge to get enough calories from food alone. SERIOUS MASS is the ultimate muscle building and weight gain formula. With 1,250 calories per 2 scoop serving and 50 grams of protein to support muscle