Animal M-Stak - Muscle Builder and Anabolic Mass Gainer Supplement for Bodybuilding - Lean Muscle Growth, Amino Complex and Pre Workout Energy, 21 Packs
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Availability:
In Stock.
Arrives
Saturday, May 16
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Features
- Maximize your Goals: Animal M-Stak combines nutrient partitioning and nitrogen retention in your muscles to help your body make the most of your workout to help muscle fullness and these weight gain pills ensure the food you eat goes to muscle and not fat
- Ideal for Hard Gainers: This is perfect for bodybuilders or elite strength athletes that have trouble putting on weight. They are called hard gainers in the sport. If you eat your calories & cant keep the weight on, this product was designed for you
- Advanced Formula to Build Muscle: Featuring 6 different complexes that help your body make the most of the nutrients you are putting in, this is your solution to boost energy, reduce stress, prevent muscle breakdown, and induce anabolism for muscle growth
- Reach Peak Potential in 21 Days: On training days, consume 30-45 minutes before your workout, and on non-training days, take between meals. It's simple; by putting your body in a greater anabolic environment, notice fuller muscles and improved strength
- Made to the Highest Quality & Safety Standards: All of our products are produced in our GMP certified US plant, and every batch is 3rd party lab tested for quality, safety and potency; our products work synergistically across our range
Description
Animal M-Stak is a premium supplement designed to optimize muscle growth and weight gain for hard gainers—bodybuilders and elite athletes who struggle to gain weight; if you eat your calories and can’t keep the weight on, this product was designed for you. Trusted by professional athletes worldwide for over 40 years, this non-hormonal enhancer helps nutrient partitioning and promotes nitrogen retention in muscles, maximizing the benefits from your workouts and diet. Accomplish your peak training potential by supplementing for 21 days straight with Animal M-Stak, the choice of champions for maximizing performance. This muscle growth mass gainer supplement is delivered in our world famous, industry respected pill pack system. Simply grab one M-Stak pack out of the container and you can throw it in your pocket or gym bag.
Is Discontinued By Manufacturer : No
Product Dimensions : 3.99 x 3.99 x 5.6 inches; 0.04 ounces
Item model number : U3028
Department : unisex-adult
Date First Available : September 16, 2003
Manufacturer : Universal Nutrition
Best Sellers Rank: #20,398 in Health & Household (See Top 100 in Health & Household) #13 in Sports Nutrition Weight Gainers #1,680 in Sales & Deals
#13 in Sports Nutrition Weight Gainers:
#1,680 in Sales & Deals:
Brand Name: Animal
Primary Supplement Type: Magnesium
Item Form: Capsule
Product Benefits: Muscle Growth
Age Range Description: Adult
Container Type: Packet
Dosage Form: Capsule
Model Name: Animal M-Stak
UPC: 039442030283
Manufacturer: Universal Nutrition
Global Trade Identification Number: 83
Manufacturer Part Number: U3028
Item Part Number: U3028
Model Number: U3028
Unit Count: 21 Count
Item Weight: 1 Grams
Item Dimensions: 3.99 x 3.99 x 5.6 inches
Number of Items: 1
Total Servings Per Container: 21.0
Flavor: Unflavored
Material Features: Natural
Color: Pills
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Saturday, May 16
This item is non-returnable:
Non-returnable due to Food safety reasons
View our full returns policy here.
Non-returnable due to Food safety reasons
View our full returns policy here.
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Top Amazon Reviews
Size: 21 Count (Pack of 1)
Style: M-Stak
I recently started using Animal M-Stak, and I am very impressed with the results. As a hard gainer, finding a supplement that effectively supports muscle growth without hormonal components has been challenging, but Animal M-Stak has proven to be a game-changer. First and foremost, the formulation of Animal M-Stak is impressive. The non-hormonal blend is ideal for those of us who want to avoid hormonal supplements but still need a potent formula to help build muscle. The inclusion of the energy complex is a significant plus, providing a much-needed boost during intense workouts. I’ve noticed a substantial increase in my endurance and energy levels, allowing me to push harder and longer in the gym. The convenience of the packs is another highlight. Each dose is pre-packaged, making it easy to take without measuring or mixing. I can simply grab a pack and go, which is perfect for my busy lifestyle. The recommended cycle of three weeks on and one week off is easy to follow, and I’ve seen consistent results with this regimen. In terms of muscle growth, Animal M-Stak has delivered noticeable gains. Within a few weeks of starting the supplement, I saw a significant increase in my muscle mass and strength. The recovery time between workouts has also improved, reducing muscle soreness and allowing for more frequent training sessions. This has been particularly beneficial in breaking through plateaus and achieving new personal bests. Another benefit of Animal M-Stak is the lack of negative side effects. I have not experienced any adverse reactions, which is often a concern with muscle-building supplements. The product has been gentle on my stomach, and the natural ingredients give me confidence in its safety and efficacy. While the taste and size of the pills might be a bit daunting for some, I found them manageable. It’s a small trade-off for the impressive results and benefits the supplement provides. Staying well-hydrated and taking the pills with a meal helps with any potential discomfort. In summary, Animal M-Stak is an excellent muscle-building supplement for hard gainers looking for a non-hormonal option. The energy boost, convenience, and noticeable muscle gains make it a standout product. I highly recommend Animal M-Stak to anyone serious about their muscle-building goals and looking for a reliable and effective supplement to support their journey.
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Reviewed in the United States on June 7, 2024 by DeAnna
Size: 21 Count (Pack of 1)
Style: M-Stak
Mstak is and does everything it says. I have cycled this several times over the years and just finished one recently. Id say the science has improved even better. I dont take the red. My energy level from the rest makes me not want to leave the gym already. Gains are up and strength and stamina are noticeably improved. Im 58yrs old and mstak has really helped move me over that wall ive been fighting for a couple years. Very impressed. After the cycle the energy drops. Good time to work on cardio and wellness. Cycling and yoga to keep the mind in the gym then hit it again after the break. My physique is very much improved. 10 stars
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Reviewed in the United States on October 31, 2025 by John R
Size: 21 Count (Pack of 1)
Style: M-Stak
It’s a good product. I should’ve bought it again for a second time, but i went for something a little cheaper i noticed my lifts go up though
Reviewed in the United States on October 16, 2025 by Henry O.
Size: 21 Count (Pack of 1)
Style: M-Stak
Muy bueno si lo usas adecuadamente Depende mucho de la disciplina para su aprovechamiento
Reviewed in the United States on February 12, 2026 by Libardo Gallego Zapata
Size: 21 Count (Pack of 1)
Style: M-Stak
Okay guys listen up. I've been training for about 12 years and I consider myself a natural bodybuilder. I started taking this and felt it on the first night I tried it. I didn't work out because I wanted to see how my body would react without getting my heart rate up. I noticed my ankles and wrists started to ache. Which I knew right away meant I was dehydrated. I was about halfway through a month-long workout routine before I felt I wanted to try something to break through any plateaus. So I started integrating it in, with my high carb high protein diet. I'm completely satisfied with the results. I have gained 13 pounds and my muscles are thicker and Fuller in places that have never been before. Specifically my neck shoulders and forearms are rounder thicker and Fuller. But new muscle everywhere. I believe my body fat percentage has gone down at the same time the scale has gone up. I typically walk around between 12 and 13% body fat. It has always been a challenge for me to gain weight even when my diet is dialed in. I have to bust my ass just to put on one pound of solid muscle. Granted I've been killing it in the gym but these pills have definitely help me with new gains. No question about it. I never took the red pill, just because I felt as though I never needed it. My energy levels have been great my appetite has been up, and the best thing about these pills is my sleep quality. I sleep so freaking hard and have some vivid dreams. Seriously I haven't slept this good in a long time. I know some of my weight gain has been water. I've been trying to get about a gallon a day, but that's natural when you're training hard. The only negative is taking all these pills but who really cares when your seeing Gains.right? I can't comment on the red pill because I never took it, but overall I give this product 5 stars. My strength has gone up and my focus in the gym is amazing. I definitely recommend it for someone trying to break a plateau and/or the typical hardgainer
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Reviewed in the United States on June 9, 2017 by dustin
Size: 21 Count (Pack of 1)
Style: M-Stak
I have been lifting and training since I was 14 and am now 36. I have never taken anything beside protein, creatine, and pre workout. I needed a little help breaking through some plateaus due increased working hours and cutting this time of year. I’m done with the first 3 week cycle out which is recommended to do 3, 3 week cycles then a month off. I have noticed a huge difference in recovery time and less fatigue during workouts. I have gained about 1lb of lean muscle maybe more in 3 weeks which if you know after so many years of lifting it gets harder to gain lean mass due to certain physiology of human male bodies and muscle density. I started to stack this with animal craetine as well and further increased results I’m excited to see how much gain after the 3rd cycle. I do recommend this product no side effects at all just increased energy without the red pill and gains. I don’t want to add any non natural hormones to my body (just my preference nothing against anyone who does) and this was a surprisingly good supplement to help. You obviously still have to work hard and put in the effort but Mstack definitely helps.
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Reviewed in the United States on June 12, 2024 by Keith