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Optimum Nutrition

Optimum Nutrition, Serious Mass, 50g Protein Powder, Chocolate, 12 lb, 16 Servings

4.5 · 177 reviews
12,212 ₽

Serious Mass is the ultimate muscle building and weight gain formula. This whey protein powder has 1,250 calories per 2-scoop serving and 50 grams of protein to support muscle recovery. This whey protein powder makes the ideal post-workout drink.

Size: 12 lb

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Serious Mass is the ultimate muscle building and weight gain formula. This whey protein powder has 1,250 calories per 2-scoop serving and 50 grams of protein to support muscle recovery. This whey protein powder makes the ideal post-workout drink.

Customer reviews

5.0
Serious mass protein power

I love this stuff! It taste so good and it helps me achieve my goals.

10/16/2025
5.0
Good Chocolate Taste

taste very good, great for wanting to gain weight.

8/4/2025
5.0
Wooo!

Great for mass!! This is what you need if you want to get the real gains

7/26/2025
5.0
Double Chocolate

Tastes amazing and mixes very well in shaker bottle

6/25/2025
5.0
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.

6/2/2025
5.0
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.

2/18/2025
5.0
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.

1/6/2025
5.0
VERY YUMMY RECCOMEND

[This review was collected as part of a promotion.] Taste really good and it’s very easy to mix and it’s defiantly working the texture is also good and very nice and smooth once mixed and it’s definitely worth its value

12/29/2024
5.0
i need more

[This review was collected as part of a promotion.] super amazing omg i need another one rn i just finished mine!!! it helped me create muscle mass very healthily since i don’t gain weight easy. its great and it lasted so long. tastes yummy like cake!!

12/23/2024
4.0
Good taste

[This review was collected as part of a promotion.] The taste was better than I was expecting! I made a strawberry banana chocolate smoothie and it was good! Lots of protein for not too many calories and didn’t leave the smoothie too chunky.

12/8/2024