If you’re in the bulking phase, your goal is to gain weight — but you want to build muscle, not just accumulate fat. While a high-protein, high-calorie diet forms the foundation of successful bulking, it might not be sufficient if you’re struggling to consume enough protein and calories for optimal muscle growth. Fortunately, mass gainers can bridge this gap and help you reach your daily nutritional targets more efficiently.
With countless mass gainers available, including options like Dymatize Super Mass Gainer, choosing the right one can be overwhelming. That’s where Serious Mass stands out.
Serious Mass lives up to its name, and you’d be hard-pressed to find something quite like this if you are looking for a mass gainer. Designed for dedicated bodybuilders and serious gainers who demand maximum muscle-building potential, this supplement goes far beyond standard protein powders. If you’re seeking something that delivers exceptional results, Serious Mass might be precisely what you need. Let’s dive into our comprehensive review of this powerhouse mass gainer.
What Is Serious Mass?
Serious Mass is a high-protein weight gain powder manufactured by Optimum Nutrition, the same company behind Opti-Men and Essential Amin.o Energy.
This supplement transcends typical protein powders, delivering substantial amounts of protein, calories, and BCAAs to fuel exponential muscle growth. Tailored for dedicated lifters pursuing serious muscle gains — whether you’re a competitive bodybuilder or someone who has struggled with weight gain — this formula provides all the essential nutrients needed to build a lean, powerful physique. The product comes in delicious flavors that eliminate the bitter taste and unpleasant aftertaste common with other supplements.
For those seeking a comprehensive source of protein, vitamins, minerals, and BCAAs, Serious Mass delivers exactly what you need. This mass gainer deserves serious consideration if maximizing muscle mass is your primary fitness objective.
Serious Mass Advantages
- Comes in different flavors
- Tastes great
- Easy to mix
- Contains plenty of BCAAs for muscle building
- Packed with plenty of protein and calories
- Great for hard gainers and bodybuilders
- Plenty of essential vitamins and minerals
- Perfect for post-workout shakes or in-between meals
Disadvantages
- May trigger some side effects
- Not suitable for weight loss
Who Makes Serious Mass?
Serious Mass is manufactured by Optimum Nutrition, headquartered in Downers Grove, Illinois. The company produces premium supplements across multiple health categories, including protein powders, mass gainers, pre-workouts, post-workouts, multivitamins, and fat loss supplements. They also offer a dedicated apparel line for fitness enthusiasts. Optimum Nutrition has earned widespread acclaim from serious athletes and fitness professionals, as evidenced by exceptional customer reviews and ratings. For those prioritizing quality and effectiveness in their supplement choices, Optimum Nutrition represents a brand worth exploring.
Serious Mass Ingredients
Serious Mass contains the following ingredients: carbohydrates, protein, vitamins and minerals, glutamine, and creatine.
How Does Serious Mass Work?
To prepare Serious Mass, add 24 ounces of water to a blender, followed by two scoops of the powder. Blend for 60 seconds. For enhanced flavor, incorporate fresh fruit, and add ice cubes to create the perfect smoothie consistency.
Serious Mass can be consumed three different ways: post-workout, between meals, or before bedtime. The preparation method remains similar across all scenarios. For post-workout consumption, wait 30 to 45 minutes after finishing your session. When using it between meals, reduce the serving to half a scoop instead of the standard two scoops. For bedtime consumption, use the full two-scoop serving at least one hour before sleep.
Optimal results require a 48-hour recovery period between training the same muscle groups. For instance, after an upper body workout, focus exclusively on lower body training or complete rest during the recovery window. This approach allows proteins and amino acids to properly repair muscle microtears from previous sessions. Recovery is integral to the growth process and maximizes your results.
The caloric and protein content in two scoops equals approximately three hamburger and fries meals. Combined with a rigorous training program designed for muscle growth, you’ll gain substantial muscle mass. For those serious about bulking, this type of mass gainer provides exactly what you need.

Is Serious Mass Safe?
Mass gainers may cause common side effects due to their concentrated ingredients. Users of Serious Mass have reported nausea, cramps, bloating, stomach upset, diarrhea, gas, and irritability.
Where To Buy Serious Mass
You can purchase Serious Mass directly from the Optimum Nutrition website. A 6-pound container costs $34.99 while a 12-pound container is priced at $50.99. Prices may vary when purchasing from third-party retailers.
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Serious Mass: Is It Worth It?
For those committed to significant muscle growth, Serious Mass represents an excellent investment. This stands among the top weight gainers that bodybuilders and hard gainers can depend on, particularly when they need concentrated amino acids, protein, and calories to accelerate their progress. Higher nutrient intake translates to greater muscle growth potential. Whether you’re a strength athlete or competitive bodybuilder, a quality mass gainer is essential. With abundant servings per container, this product provides exceptional value for achieving your physique goals.











