Optimum Nutrition ON Serious Mass 6lb Protein Powder product image
Optimum Nutrition ON Serious Mass 6lb Protein Powder product image
Optimum Nutrition ON Serious Mass 6lb Protein Powder product image
Optimum Nutrition ON Serious Mass 6lb Protein Powder product image
Optimum Nutrition ON Serious Mass 6lb Protein Powder product image
Optimum Nutrition ON Serious Mass 6lb Protein Powder product image
Optimum Nutrition ON Serious Mass 6lb Protein Powder product image
Optimum Nutrition ON Serious Mass 6lb Protein Powder product image
Optimum Nutrition ON Serious Mass 6lb Protein Powder product image
Optimum Nutrition ON Serious Mass 6lb Protein Powder product image
Optimum Nutrition ON Serious Mass 6lb Protein Powder product image

Optimum Nutrition ON Serious Mass 6lb Protein Powder

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About This Item

Serious Mass is the ultimate muscle building and weight gain formula.

BENEFITS & FEATURES:

  • With 1,250 calories per 2-scoop serving and 50 grams of protein to support muscle recovery
  • This powder makes the ideal post-workout and between meals shake for sizing up your goals
  • Serious Mass provides you with the tools you need to support your weight gains goals
  • Brand : Optimum Nutrition
  • Country of Origin : United States of America
  • Style : 2730311, 2730096, 2730097
  • Web ID: 16ONUUNSRSMSSBNN6GAA
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REVIEWS

4.7

100%

Recommended

238 Reviews

Images

Verified Purchase

Serious Muscle Growth

I've packed on 35lbs of muscle using this product along with weight training. I highly recommend it for a boost in muscle growth.

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The Best During My Gym Journey

[This review was collected as part of a promotion.] Optimum Nutrition Mass Gainer in Chocolate is a delicious and effective way to boost your calorie intake. It has a rich, smooth chocolate flavor that makes it enjoyable to drink, and it blends easily without clumps. Packed with a good balance of protein, carbs, and essential nutrients, it helps support muscle growth and recovery. Overall, it’s a great choice for those looking to gain weight or build muscle.

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Verified Purchase

Great Weight Gaining Powder

Excellent product! I gained about 11 pounds in 2 weeks. Very flavorful and easy to digest.

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Verified Purchase

Pb.... Strong 💪

This is worth every penny on the dollar... good product definitely buying again.

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Verified Purchase

Great Taste & Texture. Effective.

Long-time Serious Mass user. I use it as a meal replacement for days when my schedule is jam packed and getting lunch is not an option. Tastes great. Quells my hunger and keeps my muscles fed.

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