Optimum Nutrition Serious Mass "New Arrival" Low UV index

Low UV index

Measuring 120cm in length

Massage effect thanks to integrated silicone quartz pad with 3D profile

Step on to the CORTEX Weightlifting Platform to train hard and conquer PBs

Optimum Nutrition Serious Mass "New Arrival" Low UV indexOptimum Nutrition Serious Mass the ultimate in weight gain formulas. Ectomorph's rejoice! If you are training hard, doing the work everyday, squatting hard but not putting on the size you want then you should try Optimum Nutrition's Serious Mass. Benefits: Not just a weight gainer but a great all round supplement with added Creatine and Glutamine Very high in carbohydrates and calories that can be used to increase your daily protein and calorie intake