Optimum Nutrition Serious Mass – Complete Supplement for Rapid Weight Gain

Optimum Nutrition's Serious Mass is one of the most popular and effective hypercaloric supplements on the market, developed especially for those looking to gain weight, strength, and muscle mass quickly and efficiently. With 1,250 calories per serving, 50g of high-quality protein, complex carbohydrates, and creatine monohydrate, it provides essential nutrients to boost muscle growth and accelerate recovery after intense workouts.

Its formula is also enriched with vitamins and minerals that aid in energy metabolism and support physical performance. With a Banana flavor, it offers a tasty and nutritious experience.