Overall Rating
4.8 out of 5 stars
Reviews (603)
Verified Buyers (572)
Review Graph
  • 5 star
    80%

  • 4 star
    17%

  • 3 star
    2%

  • 2 star
    0%

  • 1 star
    1%

Top Rated Flavors
  • Chocolate (4.8/5)
  • Vanilla (4.7/5)
  • Banana (4.7/5)
  • Chocolate Peanut Butter (4.6/5)
  • Cookies & Cream (4.6/5)
  • Strawberry (4.5/5)
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  • All Reviews (603)
  • Verified Buyers (572)
Overall Rating
  • Vanilla
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Dirk J
Build Muscle
Verified Buyer
Love the flavor and how well it mixes with my normal protein shake. Other brands can clump or stick to side of the blender and take 6 scoops(similar size) compared to two. So you know there’s not a lot of fillers in this, and ON always makes a very good product!*
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2021-05-08 21:16:49Z
Overall Rating
  • Strawberry
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Benjamin S
Great product.... Gives you what you need for a more intense workout.*
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2021-04-22 02:11:45Z
Overall Rating
  • Chocolate Peanut Butter
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Nicholas R
Verified Buyer
Solid protein powder. Constantly see muscle growth while taking it.*
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2021-04-16 07:46:14Z
Overall Rating
  • Chocolate Peanut Butter
  • Vanilla
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Ravi B
Verified Buyer
truly a mass gainer with 3g creatine in the new formula!!!!!*
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2021-04-10 11:31:45Z
Overall Rating
  • Chocolate
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Trisha W
Verified Buyer
Hands down favorite protein for my son. He loves the Mass gainers.*
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2021-04-09 16:25:24Z
Overall Rating
  • Chocolate Peanut Butter
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Ravi B
Verified Buyer
this product is true to its name... really helps with that mass gain!!!*
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2021-03-30 11:29:46Z
Overall Rating
  • Chocolate
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Grant H
Build Muscle
Verified Buyer
Flavor is good. The serving sizes are gigantic so make sure you have a large enough shaker. My shaker is too small and I have to make two drinks. I love that the protein has different sources and even creatine.*
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2021-03-19 01:38:06Z
Overall Rating
  • Chocolate Peanut Butter
  • Chocolate
  • Vanilla
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Cody Pruitt
Healthy Lifestyle
Want to make gains. You'll see em for sure this product i have used for years and I've seen nothing but improvement in every work out. *
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2021-03-08 18:15:11Z
Overall Rating
  • Chocolate
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Alwayne Easy
Verified Buyer
It indeed does the job that it states it would do.*
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2021-02-01 01:10:54Z
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waleed f
Build Muscle
بروتين جاااااااااااااامد جدا تحياتى وليد Translation: A very good protein. Greetings, Walid*
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2020-12-28 04:53:43Z
Overall Rating
  • Chocolate Peanut Butter
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Fayyaz A
Verified Buyer
Awesome results and tastes amazing*
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2020-12-17 06:32:38Z
Overall Rating
  • Chocolate
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Edward P
Build Muscle
Verified Buyer
The flavor is like chocolate which is a good thing.as many other like items taste chalky or like a very diluted chocolate. The price is a tad high but when they have a sale it becomes very fair.*
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2020-12-16 00:28:37Z
Overall Rating
  • Vanilla
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Felix R
Sports Improvement
Verified Buyer
Es el producto N° 01 para los atletas que realizan practicas de Futbol y Beisbol Translation: It is the product No. 01 for athletes who practice Soccer and Baseball*
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2020-12-15 20:34:27Z
Overall Rating
  • Chocolate
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Noah Scott
Verified Buyer
Good tasting protein. Tastes like chocolate pudding once mixed up well*
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2020-12-13 18:57:39Z
Overall Rating
  • Chocolate
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Jason S
Build Muscle
Verified Buyer
I only use half a serving. I’m getting major gains with this.  I have to take some days off. It works beyond what I  expected. *
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2020-12-11 05:08:44Z
Overall Rating
  • Banana
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Tony T
Build Muscle
Verified Buyer
I love this gainer and all my friends have swapped to it also ! I hate to brag anymore on it because now it’s went up in price and availability issues !! So maybe that might be a good enough example of why it’s very popular because it’s a clean gainer. No gainer gut. I’m a big guy 6’3 - 240 lbs and I’m about as lean as I was in my 20’s and putting on mass without the gainer gut is hard to do now at 40. But this stuff is fire !!*
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2020-12-09 13:53:01Z
Overall Rating
  • Banana
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Tony T
Build Muscle
Verified Buyer
If you want to beef up your build then this is what works !! Good clean gainer with a great taste. *
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2020-11-20 14:40:58Z
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Brandon P
Verified Buyer
Amazing results for an unbeatable price!*
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2020-11-06 12:37:44Z
Overall Rating
  • Vanilla
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Trinity R
Build Muscle
Verified Buyer
I have no complaints about this product, I would recommend it.*
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2020-10-29 17:36:11Z
Overall Rating
  • Banana
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Anthony C
Verified Buyer
perfect mass gainer cant complain.*
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2020-10-21 03:24:52Z
Overall Rating
  • Banana
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Tony T
Build Muscle
Verified Buyer
Absolutely the best gainer I’ve used by far ! Mixes easily and tastes like a blue bell Milkshake. Also it’s very clean as well no bloating like other gainers. Totally satisfied with *
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2020-10-16 12:07:04Z
Overall Rating
  • Chocolate
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laurent c
Verified Buyer
Very good, good quality and worth it*
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2020-10-10 00:28:06Z
Overall Rating
  • Chocolate
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Jason S
Build Muscle
Verified Buyer
I’ve used this product in the past. I can only do one scoop at a time. But still get great results. I think I would recommend this to anyone trying to add a few pounds or bulking up. *
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2020-10-09 03:56:04Z
Overall Rating
  • Banana
  • Vanilla
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Yevgeniy K
Verified Buyer
All great. Mixes well, tastes well*
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2020-09-13 23:46:10Z
Overall Rating
  • Strawberry
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ROBERT L C
Verified Buyer
Mixes very well and taste good..*
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2020-09-07 18:34:06Z
Overall Rating
  • Chocolate
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Nic J
Verified Buyer
This puts on weight better. 3x a day will do the trick with your meals.*
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2020-09-04 03:45:43Z
Overall Rating
  • Chocolate
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Philippe A
Build Muscle
Verified Buyer
The Product is good as expected.*
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2020-09-03 05:29:11Z
Overall Rating
  • Chocolate
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abdoul d
Verified Buyer
Great taste I like the flavored  One of the best product so far and i like to shop with  muscle and strength  because of their rapidity of sending the item to you so far one of the best store online *
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2020-08-27 15:39:29Z
Overall Rating
  • Chocolate
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Jamil N
Absolute weight gaining powder, you will feel bulkier and stronger after few weeks of usage.*
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2020-08-23 12:18:38Z
Overall Rating
  • Chocolate
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laurent c
Verified Buyer
Excellent for gaining mass. Works wonders*
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2020-08-19 19:31:47Z
Overall Rating
  • Banana
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Robert E
Build Muscle
Verified Buyer
Closest thing to steroids on the market, almost feels like cheating.*
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2020-08-18 00:10:27Z
Overall Rating
  • Vanilla
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Ravi B
Verified Buyer
Taste great! Very good mass gainer!*
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2020-08-14 15:12:08Z
Overall Rating
  • Banana
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Tony T
Build Muscle
Verified Buyer
The secret is out now !! I’ve used this gainer for years and love it. Now it’s becoming one of the hottest on the market and running out of stock more frequently Because the results are awesome. No gainer gut from this product. *
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2020-07-31 14:49:48Z
Overall Rating
  • Chocolate
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Alexander V
Verified Buyer
New formula is great. They added more creatine*
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2020-07-31 02:37:13Z
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Shihab A
Verified Buyer
I placed the Sirius Mass order from yesterday and have not yet shipped*
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2020-07-30 21:53:46Z
Overall Rating
  • Chocolate
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Jaime G
Verified Buyer
Simply the best mass gainer in the industry.*
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2020-07-28 16:37:39Z
Overall Rating
  • Banana
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Tony T
Build Muscle
Verified Buyer
This by far is the best product for your money !! Great taste and mix ability not to mention superior results ! Cleanest gainer I’ve tried and no Gainer Gut. *
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2020-07-27 14:49:38Z
Overall Rating
  • Strawberry
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ROBERT L C
Verified Buyer
Mixes very well tastes great..just what i needed..thanks*
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2020-07-25 13:11:38Z
Overall Rating
  • Chocolate
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Kimberly H
Verified Buyer
Followed directions on the package and gained a couple pounds after a week. Taste is excellent, although I do like vanilla the best !*
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2020-07-24 02:35:14Z
Overall Rating
  • Chocolate Peanut Butter
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Flowers love me
Verified Buyer
Couldn’t have chooser a better flavor! Perfect *
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2020-07-24 02:30:08Z
Overall Rating
  • Chocolate
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Katelyn G
Verified Buyer
Only used it a few times so I cant say much about the results so far but other chocolate powders are always too much for me and taste gross but this is a light chocolate flavor thats very easy to drink i mixed it with half milk and half chocolate milk and it taste great*
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2020-07-23 02:00:40Z
Overall Rating
  • Strawberry
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Wesly T
Healthy Lifestyle
Verified Buyer
I really recommend it and good taste*
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2020-07-22 17:43:13Z
Overall Rating
  • Chocolate
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Cesar G
Verified Buyer
Taste great and is working well.*
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2020-07-20 01:57:34Z
Overall Rating
  • Banana
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Ali S
Verified Buyer
Best gainer I've tried. The taste was good*
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2020-06-28 08:23:17Z
Overall Rating
  • Banana
  • Vanilla
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Yevgeniy K
Verified Buyer
Mixes well, tastes very good. Highly recommended*
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2020-06-27 22:36:42Z
Overall Rating
  • Banana
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Tony T
Verified Buyer
I’ve tried many different gainers and this one is the cleanest one I’ve used by far and the best results without getting the ( GAINER GUT) also. Gain mass where you want it and no big gut also. The best gainer out there.*
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2020-06-19 13:42:02Z
Overall Rating
  • Chocolate
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Jaime G
Verified Buyer
Tastes great, mixes easily, helps you get swoll fast.*
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2020-06-17 19:01:31Z
Overall Rating
  • Chocolate
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wes m
Verified Buyer
Great flavor mix easy and simple with one scoop. Great way to add calories to ur diet . Will buy again*
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2020-06-16 05:04:55Z
Overall Rating
  • Chocolate Peanut Butter
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Ravi B
Verified Buyer
Delicious and do as it says!!!*
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2020-06-11 16:14:18Z
Overall Rating
  • Chocolate Peanut Butter
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Jeff J
Build Muscle
Verified Buyer
Perfect with Almond Milk and a banana.*
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2020-06-10 15:00:02Z
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* Muscle & Strength does not imply any medical claims from this review. There are no guarantees of specific results and results may vary.
* These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.