Animal Stak Reviews– Unleash your Beast, or grow Bitch Tits?

Animal Stak Review and Results:

The Good:   Some good results. Big range of potentially good ingredients.

The Bad:  Possible side effects. Odd dosages. Complicated proprietary formula- Impossible to track. What is Animal Stak, & who makes it? 

Normally our website reviews testosterone supplements and boosters, and because of this reason, we HAD to take a crack at one of the oldest testosterone boosters on the market, Animal Stak.

Animal Stak is a well-known supplement in the body building industry, especially among gym veterans. It’s made by Universal Nutrition, which is a well known manufacturer, with a wide range of products.

Tons of bodybuilders and older folks at the gym will swear by Animal Stak, and rightfully so- the company has been around for 9 years, has a massive product line, and has great reviews as a supposedly do-all, catch-all, muscle builder and booster.

Editor’s Note – John, assistant trainer and ‘lifting+boxing enthusiast, reviews most of this article:  Honestly, I am a little skeptical of the product. As someone who is newer to the game of bodybuilding (im 22 lol) and getting those extra grinds and reps in the gym, I have my supplements and boosters that I really like, and I am frankly a little anxious about a product like Animal Stak.

But some of my older mentors keep raving about it and are really trying to get me to give it a chance. The older crowd swears by this stuff. So I finally caved and decided to give it a good look and a chance. I mean these veterans gotta know something, right? 

Animal Stak makes some bold claims about being so much more than just a testosterone booster. I am used to having to take a lot of different supplements to achieve the results I want, so something that advertises itself as a “complete anabolic hormone stack” is pretty attractive.

So my hope is going to be that Animal Stak will save me a few bucks, and give me the boost that all my previous supplement stack has been giving me. Save time, save money, give me more time to get in the gym and embarrass the old timers (kidding, a little). 

How good is this? Will it really work for you?  

That depends, will you work for it? Animal Stak will build muscle. That’s what this is all about after all. But YOU have to put in the effort to build that muscle. Animal Stak is nothing without getting those reps in and having the discipline to actually work out and dedicate yourself to body building and training.

Animal Stak 2 vs Stak 1- What’s the Difference? 

Editor’s note:  Unlike many earlier reviews, this one is for “Animal Stak 2” – though the company just calls it Animal Stak again. The formula has been revamped and apparently improved.

The first Animal Stak did contain steroid substances that were not legal in many countries. This new version removes or replaces banned substances (pro hormones) . Click here to check out buying options on Amazon.

Some die-hard fans of the brand love its long-lived “garage” feel, street cred and reputation. Stak has been around for more than 10 years… But we have to note that in the end they are still a big corporation/business  – and they do change their formula depending on their goals. Sorry guys, Animal is not God.

John:  One of the things I like about Animal Stak is that it has been around for a while. It isn’t just a flash in the pan supplement. And being around for so long has given them a chance to really laser focus their formula.

What I had been told about Animal Stak, about it not really working, well that was a different version of the formula from 7 years ago. So that is one thing to note, if Animal Stak did not impress you in the past, at least give it another chance. Who knows? It might work for you this time. 

Who is it for?

Animal Stak really seems like they are just marketing to body builders. Forget other sports. This is for gaining muscle. This is for people who want to stay drug free and naturally build their muscles. Many of the folks who I talked to mentioned they really liked Animal Stak.

Proprietary Blend and Ingredients

But I am not so sure. My one big problem with Animal Stak is that they dont reveal exact dosages for their ingredients. This may be okay for SOME people, people who just like something that works.

But for me, I like to dig deeper, I like to know exactly what im taking, and how much of it. I need to know what I am putting in my body, and at that point Animal Stak falls SERIOUSLY short. And I get it, 10 years ago this may have been something that was okay, not giving exact ingredients and amounts. But its 2017: I’m tired of proprietary blends and putting shit into my body without knowing what it is!

There are three ingredients I always look for when buying a testosterone booster, and that’s D-Aspartic Acid, ginseng, and oyster extract, and Animal Stak has none of them. It really puzzles me that they don’t have these in the formula.  

Who is it NOT for?

 So seriously, I know Animal Stak doesn’t market itself as a testosterone booster, but that’s what I want to gain more muscle. And this just doesn’t have some of the proven ingredients that I want. And I don’t know how much is in it.

Being that it says it’s an “anabolic hormone booster”, and not JUST a testosterone booster, and I just need to see more testosterone boosting ingredients. So if you are looking specifically for testosterone boosting, this may not be for you!

Animal Stak Online Reviews and Testimonials 

Being that Animal Stak has been around for so long, there is a lot out there about it. And people have both good and bad things to say about it.

Mike says “I had baseline blood work done prior to taking this product. I went through three cans, then reevaluated where by testosterone levels were a few months later. My total testosterone actually decreased by 23% and Sex Hormone Binding Globulin (SHBG) increased by a few points. This product was taken in conjunction with a solid well rounded nutritional plan, decrease in longer distance running, and increase in weight training.”

Who is da bitch?

While Elman says “I’m almost 60 and I’ve been using this product for the last 5 or more years off and on. I see the results every time I’ve used this product. Lots of good natural testosterone boosters, growth hormone, cell repair supplements in one complete stack.”

Confirming what Elman says, Dustyn adds “I wouldn’t say I noticed significant gains on this stak. However, I did notice that my energy levels during the work-out were increased and my strength was increased slightly when taking this supplement.”

Cristhian writes “It was my first time taking these kinds of supplements and I got to say I’m impressed. I’m usually very tired after my day job and taking this 30-40 minutes prior to my work out provided great energy boosts. I can definitely feel lifting more, greater focus, feeling stronger and becoming healthier over time. If you consult with your physician and don’t have any health risks, give it a try and maybe it’ll work just as good as it did for me.”

My Experience 

So here’s the deal, I took Animal Stak for a month. And I can agree with Dustyn that I did feel a small boost to my strength and energy. Animal Stak certainly did SOMETHING for me. I did feel an added energy and some added strength. I just didn’t see the definition that I was looking for.

With a price tag that is a bit high, and no kind of listing of ingredients, it just wasn’t worth it. I feel like there are other testosterone boosters that really help my muscles grow that I can trust more.

Overall, i’m sure when Animal Stak hit the streets all those years ago, it was an awesome product. But we have come far, and I expect more. Many old timers started body building with Animal Stak and will remain with it. But for me, I prefer something I know a bit more about. 

Animal Stak Ingredients Breakdown

The ingredient list for Animal Stak is pretty long and involved. And it certainly does have some products that have been proven to boost testosterone and help produce muscle.

Just glancing at the list, I see things pop out to me like Vitamin B6, magnesium, zinc, vitamin D-3, tribullus terrestris, fenugreek, L-Carnitine, arginine, superserum, and sutamine.

And that’s not even everything. There are seriously a ton of ingredients in this stuff. Which when said out loud sounds really impressive. Like, oh the kitchen sink is in here, it’s gotta be a catch all for everything.

And this is where my biggest gripe with Animal Stak comes in: they don’t list dosages of how much of an ingredient is included. So even though they include SOME clinically proven ingredients, they could be trace amounts that won’t actually help.

It also contains a ton of ingredients that have nothing clinical to back them up. This is another huge problem for me, because although Animal Stak SAYS they are good, there is no real proof that they are something I should actually be taking. And I don’t buy it. In 2017, you need more than a good word.

There are certainly SOME ingredients that are proven to boost testosterone, but there is nothing saying how much, and we know how much of an ingredient is needed to boost testosterone. So this just takes away from a guarantee.

Some users of this product have even reported a DROP in testosterone levels, which would leave me BEYOND pissed. 

How do they work?

 But i’m not a complete naysayer, so I can give credit where credit is due. There are SOME good things with Animal Stak. We are told the amount of ingredients that are in Animal Stak when it comes to zinc, magnesium vitamin B6, and vitamin D-3. Although this is looked at as a strength of Animal Stak, really it something I have come to expect from the boosters I take. So this is not so much going above and beyond, but the standard.

The ZMA (zinc, magnesium, & vitamin B6) blend within Animal Stak is one of the most proven blends to help boost testosterone levels.

Vitamin B6 works as an energy booster.

Vitamin D-3 is particularly important for those who may be deficient in testosterone and CAN in some cases help boost testosterone.

L-Carnitine can help you from fatiguing and cashing out of your workout early.

Keep it simple.

Tribulus terrestris and fenugreek can help with libido, increasing sex drive:  But once again, they do not list the amount of these ingredients. So if you want to take Animal Stak and want the bonus of increased sex drive, who knows how much fenugreek is actually in there or if it will make a difference.

These ingredients CAN certainly boost muscle production and COULD be highly effective, but we just don’t know how much of each ingredient is in there. So although they could be helpful, we don’t know that they will work for everyone because of lack of ingredient levels.

My personal preference is always going to be just to pick the exact amounts of the ingredients I want without having to take things I don’t need. 

Animal Stak Ingredients Breakdown 

Let’s cut to the chase: Animal Stak has some good ingredients. The ZMA blend is known to boost testosterone. And all these other ingredients, if you are deficient in them, well then you will certainly see a boost. That’s to go without saying.

But for me, the risk of not knowing what is in the product is too much. I need solid numbers, and I need dosage information for ingredients. And I need some clinical studies to back things up.

User reports are so varied I really don’t trust them. Some people talk about Animal Stak like a miracle booster, and some spend hundreds of dollars and report no change.

Animal Stak, it’s a new age, and I just need more from these ingredients.

 Side effects- Is Animal Stak safe? 

Some users have reported side effects to using Animal Stak. Those are:

  • Diarrhea
  • Acne
  • Pimples on the back
  • Long lasting erections
  • Difficulty sleeping at night

There have also been some reports of it causing severe acne.

How to take it? 

It is recommended to take one stak daily for 3 consecutive weeks and cycle off for 1 week. On days with training involved, take one stak 30 minutes before exercise. On non-training days it can be taken between meals on an empty stomach. 

What should I take it with? 

The company that makes Animal Stak, Universal Nutrition, has many other Animal branded products in their line they recommend taking Animal Stak with.

They especially recommend Animal Pak, a multivitamin that is said to work in harmony with Animal Stak. There are a number of other supplements in the Animal line that can be taken together. Frankly, we find most of them to be a bit unpredictable, loaded with proprietary formulas and scores of ingredients.

Where to buy Animal Stak 

Animal Stak is not hard to find, and can be purchased at many brick and mortar vitamin shops, as well as GNC, Amazon,

How long does it last? 

You can usually get a 3 week supply of Animal Stak for $35. That is 21 stak’s with 8 pills in each stak.              


  • Claims to help boost testosterone
  • Helps with sex drive
  • Can help build muscles in some cases
  • Has the zinc, magnesium, and vitamin b6 blend 


  • Proprietary blend, no exact dosages of ingredients
  • Missing proven testosterone boosting ingredients
  • Mixed reviews, some see no change, and some love it
  • No scientific studies
  • Massive dases, 8 pills at a time
  • Side effects can be rough, like bad acne

Animal Stak Results and Verdict

Here’s the deal: I don’t want to bash the makers of Animal Stak, they have been around for 30 years, and you don’t stay in the supplement game for 30 years if you are pushing ineffective garbage.

And I don’t want to insult those who say Animal Stak works. Because it DOES have an effect, and whatever works for one person, that’s what they should do. But the claim that they are a “all-around anabolic hormone booster” without any clinical studies is concerning. And the average consumer doesn’t really know what that means.

Let me cut straight to the chase: I work my ass off to get the body I want. And although there are benefits to Animal Stak, they aren’t enough. In a age when I can just research on my own what works and what doesn’t, I just don’t see enough of what works, mainly things found in other testosterone boosters, in Animal Stak.

I’m not just going to take some supplement because of a fancy label and some big claims. I really would rather stay away from a proprietary blend, and focus more on things that I trust, and can read and trust the ingredients inside.

If Animal Stak works for you, great. But I will be looking into more focused and proven testosterone boosters.           

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