Serious Mass from Optimum Nutrition

Optimum Nutrition's Serious Mass will give you the muscles you've always wanted.

What is ON's Serious MASS?

Serious MASS is a protein and carbohydrate-rich formula from Optimum Nutrition designed for muscle development.

This weight gain supplement is the ideal shake to have after workouts and between meals to reach your goals. Serious MASS is the supplement you need to support your quality weight gain objective.

It has been designed with a powerful set of ingredients that do an excellent job helping you gain more mass. It contains a concentrated and controlled amount of calories totaling 1259 kcal per serving. It also includes a large amount of carbohydrates and proteins, which are essential when it comes to strengthening muscles. The energy comes from creatine, an essential nutrient in this regard.

Few supplements on the market offer such deep protein synthesis, making it impossible for you to suffer from catabolism. Likewise, you will notice how you recover quickly and gain more power, making you effective in the most demanding workouts that deliver the best results. Additionally, it is packed with vitamins and minerals that your body cannot do without.

If you practice bodybuilding or any strength sport, you should strengthen yourself with Optimum Nutrition's Serious Mass. This supplement combines the benefits of the best whey protein concentrate, egg albumin, and calcium caseinate. These components allow you to recover quickly, reproduce higher glycogen levels, and achieve unstoppable muscle growth. Consume it also to maintain your muscle gains for longer. It is the most powerful formula that gives you all the strength you need to increase your power and endurance during the most demanding training moments. Don’t hesitate, this product will help you go further than you imagined.