Optimum Nutrition Serious Mass Protein Vanilla 5.44kg Pre-Workout Enriched with Aminexil and Niacinamide

Enriched with Aminexil and Niacinamide

all-day protection and live fearlessly

Non-comedogenic formula

As your kids grow it’s important to ensure they are getting sufficient nutrients to support their eyes and brain health

and brighten skin

Optimum Nutrition Serious Mass Protein Vanilla 5.44kg Pre-Workout Enriched with Aminexil and NiacinamideOptimum Nutrition Serious Mass is a high calorie weight gainer which is also high in protein and when taken over time with regular resistance exercise and a balanced diet can help you gain mass and muscle. It also has creatine and glutamine to support Muscle building & recovery, when accompanied by a balanced diet and regular exercise.