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Serious Mass is a high-quality gainer in the form of an all-in-one blend containing a high dose of quality carbohydrates. In addition, it is also a source of proteins that contribute to muscle growth, and there is no lack of vitamins, minerals or creatine. One serving has over 1,260 kcal, making it ideal for people who are trying to increase their calorie intake, for example, during the bulking phase.

In stock
€65.95
(€12.10/ kg)

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Serious Mass - Optimum Nutrition

4.5
Average from 234 reviews
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Customer Experiences:

Reviews for this Serious Mass type mass gainer are overwhelmingly positive. Customers repeatedly highlight visible weight and strength gains, often within 2 weeks, plus high satiety and strong daily energy. Many praise dissolving and shakeability, with flavors generally described as tasty and not overly foamy. Most users report good tolerance, though a small share mentions skin changes or personal sensitivity, and some dislike specific flavors or very sweet taste.

  • Visible gain in weeks
    |
  • Good mixability
    |
  • Filling, high calories
    |
  • Pleasant flavor variety
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  • Good overall tolerance
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  • Energy for training

Generated by AI from 234 customer reviews.

Most Beneficial Positive Review of Product

Joseff

Unverified purchase
top, easy-to-digest gainer from Optimum Nutrition brand, which completely satiates like a regular meal, I gained 2kg from this package, excellent taste and nutritional values

All Reviews

English reviews (17)
Verified purchases (0)
Positive (17)
Negative (0)
Reviews in other countries (234)
  • akon

    Unverified purchase

    01.02.2018

    ?
    That's it? or is it just sugar?
    Recommended
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  • Jonny

    Unverified purchase

    15.11.2017

    .
    .
    Recommended
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  • Andor

    Unverified purchase

    08.11.2016

    Acceptable
    In terms of effectiveness, it is very good, you can grow from it, in terms of composition it is one of the best/most complex. I bought chocolate before, the measuring spoon is huge, so the stuff runs out a lot. The taste is fine, but there are still chunks left after long blending.
    Recommended
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  • Gabi

    Unverified purchase

    20.09.2016

    Very good!
    I picked the strawberries in the spring, it made a lot of difference in performance and weight!! I have progressed spectacularly from this product. And my food was only 50-60% correct. I can only recommend!
    Recommended
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  • Jim

    Unverified purchase

    16.10.2015

    Everything is included
    I think it has everything you need for weight gain. Vitamins, sugars, etc. I like it a lot so far and it's not the last!
    Recommended
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  • bence

    Unverified purchase

    03.10.2015

    good
    They are all very tasty. I only tried samples of three of them, but they were good. We use this in the gym when it comes to bulking up
    Recommended
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  • Sanyi

    Unverified purchase

    17.09.2015

    My favorite mass gainer
    I've been using this for a long time and I finally found it cheap here! So I stick with this product if I want to take mass gainers.
    Recommended
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  • Peti

    Unverified purchase

    03.09.2015

    good
    I take this every time. I am completely satisfied with it and everything is very delicious!
    Recommended
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  • Gusztáv

    Unverified purchase

    30.08.2015

    It was delicious
    It has a very delicious taste. It can be easily mixed with both water and milk.
    Recommended
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  • Misi

    Unverified purchase

    19.08.2015

    nothing special
    I think it's just an average mass gainer. I didn't notice anything special about it. It tastes better than the bigger one, but nothing extra.
    Recommended
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