Animal Stak

Animal Stak , 21 Packs

The Complete Anabolic Support Vitamin Stack*
Supports Testosterone Levels In Athletes Looking To Optimize Strength & Performance*
8.6  out of 10  (469 Reviews)

Product Overview

Complete all-around anabolic hormone booster.* Enhances output of testosterone and GH through natural means.* Contains specialized hormone amplifiers to help optimize one internal anabolic environment.* Includes restorative support nutrients to enhance muscle recovery and repair.
  • Complete all-around anabolic hormone booster.*
  • Supports output of testosterone and GH through natural means.*
  • Contains specialized hormone amplifiers to help optimize one internal anabolic environment.*
  • Includes support nutrients to enhance muscle recovery and repair from workouts.*
Required For
  • - Lifters looking for a natural anabolic edge.*
  • - Athletes looking to support gains.*
  • - Those looking to optimize strength & performance.*
Daily Dose

    Take one pack daily for 3 consecutive weeks. On training days, take it 30 minutes prior to exercise. On non-training days, take it on an empty stomach, between meals. For best results, cycle this product following a schedule of three weeks on and one week off. This product can be 'stacked' with Animal Pak for superior results. Do not exceed recommended dosage.


As Animal Pump is a foundational supplement, you can take Animal Stak with it for additional benefits.

The original, Animal Stak was launched over nine years ago, and though the formula was cutting-edge at the time, anabolic supplements utilizing natural hormone boosters were still in their infancy. Almost ten years later, many new compounds have come onto the scene, raising the bar as we've always strived to do at Animal...Enter the all-new & improved Animal Stak. Building on the legacy built by the original and popular Animal Stak formula, this new and improved version has taken the most powerful components of its predecessor, combined it with newer nutrients and cranked it up to the next level. Animal Stak has long been built on being a complete anabolic hormone stack. It's not just a testosterone booster. It's also a GH booster.* Stak also contains specialized hormone amplifiers and ingredients to optimize ones internal anabolic environment. It is extreme and all-encompassing, just like every pack in the Animal line.

With Animal Stak you get a mega-potent dose of 1500mg of testosterone boosters. The Pro Testosterone Complex found in Animal Stak includes a variety of ingredients that help to elevate both of your testosterone levels: free and total. Testosterone is the primary hormone that interacts with skeletal muscle tissue and as many know, testosterone's role is paramount in muscular development. When it comes to optimizing testosterone levels, there's a couple of things to take into consideration. You want to make sure your testosterone levels aren't low - nutritional deficiencies can cause low serum testosterone levels. You also want to make sure that your ratios of "free" testosterone to "total" testosterone are advantageous. Free testosterone is the form of testosterone that exerts the anabolic effects strength athletes are after; it's the stuff that gives you results. By addressing all these issues, you could tap into your body's true potential.* Stak gives you one and a half grams daily of natural test support in every pack. That's serious.

The Pro Testosterone Complex in Animal Stak addresses these aspects of hormone management mentioned above. Primary among these are tribulus terretris extract and longjack extract. Tribulus terretris extract is a source of protodioscin and steroidal saponins; important compounds that support natural testosterone release.* The long jack extract complex contains patented LJ100™ which supplies EuryPeptides™, glycosaponins and polysaccharides, to support free testosterone levels. Human clinical trials suggest that this compound supports testosterone and promotes free testosterone while decreasing Sex Hormone Binding Globulin (SHBG) (the compound that binds to testosterone to keep it in the unusable state), as well as supporting IGF1 levels.*

Stak Quote.

All in all, you can think of the longjack extract complex as the doorway that helps support free testosterone to flow through your blood. In addition, the Pro Testosterone Complex is rounded out by fenugreek seed, stinging nettle root and maca extract. Fenugreek contains high amounts of furostanolic saponins, which are natural plant chemicals that can boost testosterone levels. Finally, this complex contains an exotic herb that is native to Peru, maca extract. Maca contains specialized plant sterols. Researchers that worked with maca speculated that it naturally supports free testosterone levels.* Working synergistically with these other pro-free test substrates, that speculation rang loud enough to make the cut in the reloaded Stak.

Next up in Animal Stak is the GH Support Complex This complex consists of specialized natural growth hormone (GH) boosters and support agents. Growth hormone is a protein-based polypeptide hormone made up 191 amino acids that is synthesized and secreted by cells in the anterior pituitary called somatotropes.

Protein synthesis and the transport of amino acids are crucial to muscle growth. These effects are mediated by insulin-like growth factor (IGF-1), another highly anabolic hormone produced in the liver and other tissues.

Kicking off the GH Support Complex is a specialized Arginine Complex comprised of two key forms of arginine; arginine HCl and patented ArginoCarn®. Arginine HCl is a well studied and highly touted amino that can support the release of GH. Arginine also has modulating effects on the immune system, supporting immunologic responses.* So not only is this ingredient helping to boost natural GH levels, which has its own set of benefits, the secondary anti-catabolic benefits are very helpful to bodybuilders and strength athletes as well.*

ArginoCarn® is a research-backed, patented compound made up of acetyl-L-carnitine arginate dichloride. Research shows that ArginoCarn® supports growth & repair of neurons, supports brain-to-muscle connection, supports cognitive function and memory and can even enhance fat burning during calorie restriction via supporting mitochondrial use of fatty acids. GH is considered to be a wonder compound due to its myriad benefits in terms of wellness, recovery and overall body composition. To optimize a strength athlete's output of growth without adding dangerous exogenous chemicals is the ideal scenario, hence why this complex plays such a prominent role in the retooled Stak formula.*

Up next in the Growth Hormone Support complex are two, unique patented compounds-Immunolin® and Humanofort™. Awesome, premium ingredients that fortify an already imposing and potent micronutrient blend. Immunolin® is a purified immunoglobulin isolate that contains beneficial growth factors, immune-supporting cytokines as well as other immuno-proteins.

Humanofort is a native oligopeptide extract containing naturally occurring growth factors. These oligopeptides (essential amino and short amino acid chains) assist the body in normalizing numerous cellular processes by activating important cellular receptors. Humanofort™ may help support natural testosterone and growth hormone levels and decrease recovery time.* Rounding out the Growth Hormone Support blend is the phospholipid, alpha glycerylphosphorylcholine (alpha-GPC) and mucuna pruriens. Mucuna pruriens is added for its ability to elevate the production of l-dopa, an amino acid that converts into dopamine. Dopamine is an essential component of our body and it's required for proper functioning of the brain.*

Another important aspect of Animal Stak is the Anti-Aromatase Complex. In order to capitalize on the blast of utilizable testosterone provided by these ingredients, Stak comes fully equipped with a combination of natural ingredients that may help support a healthy estrogen balance.* First among these is the antioxidant resveratrol.* The complex is then further fortified by hearty dosages of other science-backed ingredients; calcium D-glucarate and diinodolymenthane (DIM). Calcium D-glucarate is an antioxidant that helps to inhibit or stop the beta-glucuronidase enzyme (and a high amount of this enzyme is bad) that can interfere with the glucuronidation process. When a used toxin or hormone, such as estrogen remains bound to its water-soluble bond it will be eliminated from the body rather than being re-circulated in the blood stream.*

Rounding out the complex is Diindoylymethane (DIM), which a component of Indole-3-carbinol found in cruciferous vegetables such as broccoli, kale and cauliflower. DIM may help support a healthy estrogen to testosterone balance.*

We've also included a new Hormone Amplifying Blend that provides key patented herbs and aminos such as AgmaPure™ (agmatine sulfate), GlycoCarn® (glycine propionyl L-carnitine HCl), AstaPure® (astaxanthin) and Bioperine® with l-carnitine and quercetin mixed in. Together these herbs and aminos have been shown to help further support the natural hormone boosters in Stak by helping to create the ideal anabolic environment for them to succeed in. AgmaPure™ Agmatine Sulfate is thought to improve nutrient partitioning thus leading to more glycogen storage and increased water retention within the muscle. It also increases the level of nitric oxide (NO), which can increase the "PUMP" that athletes look for when weight training. GlycoCarn® is a powerful, research-backed, patented carnitine form that is made up of glycine propionyl L-carnitine HCl. GlycoCarn® helps increase nitric oxide (NO) synthesis which causes vasodilation and allows for greater blood flow and delivery of oxygen to working muscles. In addition, L-Carnitine has been suggested to support hormonal responses to resistance exercise and recovery and resulted in a greater number of intact receptors for hormonal interactions.

AstaPure® (astaxanthin), is a natural super antioxidant carotenoid made by plants and algae. It has been suggested to help support natural testosterone production and as an antioxidant, astaxanthin benefits cardiovascular health, immune system health, eye health and even supports healthy skin, bones and joints. Quercein is an antioxidant flavonoid found in certain fruits and vegetable that assists in the bioavailability and absorption of the other nutrients in the complexes. This is where Animal attempts to further breakaway from the pack, by creating the best possible scenario for the anabolic processes intended by the Stak formulation to work their muscle building "mojo".

Rounding out the new Animal Stak formula is a newly designed Restorative Support Complex. This complex is jam-packed with restorative nutrients to optimize ones internal anabolic environment. The herbs and nutrients within this complex provide important support for healthy adrenal, liver, cortisol function—all-important but often-overlooked aspects for not only promoting proper recovery and repair but also in maximizing natural hormone levels.* The Restorative Support Complex contains a blend of milk thistle, astragalus, ashwagandha extract, Na-R-Alpha Lipoic Acid (Na-R-ALA) and Coenzyme Q10. Together they help assist the body from a variety of health supporting angles, allowing better training capacity, improving endurance, minimizing the catabolic stress response, supporting sexual health and boosting overall immune system function.* This is the ultimate purpose of Animal Stak, thus the reason we go the extra mile to make sure this new formula is complete, comprehensive and loaded to the hilt.

Ratings & Reviews

Animal Stak
Overall Rating
469 Ratings
Verified Buyer Rating
134 Ratings
By clicking the button above, you agree to entering the Reviews section. Products in the Store are not intended to diagnose, treat, cure, or prevent any disease.
Nov 02, 2020
Verified Buyer

Not much of a difference went through a can followed instructions with diet want to think it helped but have to admit just didn’t work for me

Oct 10, 2020

This product actually helped me with strength gains but didn't actually gain any weight.

Jan 27, 2020
Verified Buyer

Update to my below review: this is still a solid, solid test booster, but I called it the strongest t booster I’ve tried and I meant to say other than p6 ultimate, which is unreal but way expensive. So this is #2 in my experience but way cheaper. I’ve had great luck with many others too, this is a good time to get into natty test boosters-a lot of them are really effective.

Jan 15, 2020

I’ve used this product for about 4 months and definitely will continue to. I feel overall “healthier” when I’m taking it and stronger in my heavy sets each week. The animal cuts gave me headaches even with lots of water, but I’ve had no such issues with Stak. It’s an all herbal/natural product so truthfully I don’t feel a insane pump or immediately noticeable chance in strength as you would with hormones or something, but I always feel pretty solid while using these. Definitely recommend it but don’t expect to take this and immediately put 15lbs on your lifts over night. I use stak with whey, creatine and BCAAs. I usually lift in the mornings so I don’t take these on an empty stomach 30-45 min before lifts like it says, I take after the lift with breakfast and i had the same results whether I took pre or post workout, just easier on the stomach with food for me

Nov 14, 2019
Verified Buyer

Bruh ngl this is one of the best supps I've had. Im 20 years old and I am now finishing my first three weeks using ANIMAL STAK. This **** hits different. Better pumps, better energy, insane increase in strength and yes, Ima take it again when this week off is over.

Aug 15, 2019
Verified Buyer

I am female and I have just finished my 1st Animal Stak box. This is one of the best products I have ever used. I consumed this one with Animal Cuts and I already could see the result at the 1st week with just doing a 30-min-workout 3 times/week. Moreover, I almost did not change my diet, I still ate high-carb, high-fibre & low-fat meals and usually had a cheat day at the weekend. I just have already re-ordered 1 Animal Cuts and 1 Animal Stak. Love Animal sooooooooo much!

Jul 15, 2019
Verified Buyer

Best test booster you can buy. Finished my 21 days and stayed the same weight but cut fat off without trying

Mar 08, 2019
Verified Buyer

Love this stuff!!!

Mar 08, 2019
Verified Buyer

Awesomeness, I am 40 and after like my 5th day kf being on animal stak, I felt like I was going to explode with the pump. This product is great. Hit my all time high on shoulder press. Unfortunately I was limited on the weights due to a shoulder pain. Currently I am resting up but I cant wait since this time I plan to stack Animal test and stack Together. Overall Superb experience.

Feb 04, 2019
Verified Buyer

Product does exactly as is mentioned! I am 24 years old and have used this product 3 times, since about 20 years old. I typically feel this product within the first week. I notice more energy, in and out of the gym, and strength typically begins going up after the first week as well. I maintain a fairly strict diet and normally see ~6 lbs of lean muscle gained each time I use this product.

Jan 21, 2019
Verified Buyer

I really do not know how this product does not have a 10 in overall rating. Most likely those who gave a low rating are because they are using steroids or they are young between 18 and 25 years old. The packaging clearly states that this product is for people over 30 years old. I'm in the first week and the increase in strength is incredible. I had not had such good results with any other product. Combine it with Universal Creatine and you have the perfect bomb to increase your strength.

Jan 06, 2019
Verified Buyer

Amazing amazing. Don't ever stop selling this

Dec 24, 2018

Great product,But a Powder Form of Animal stak should also be made.

Nov 30, 2018
Verified Buyer

Defineltely worth trying if you are a male over 30. I noticed a significant pump and faster recovery between sets and improved endurance. The only downside is the 8 pills you have to take. But other than that, this is a pretty good product. Hope this review helps a bit.

Sep 20, 2018

Began for a few days ago and the bloody thing is working way more than I expected. Good pump and endurance 💪😊

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Price: $38.95  ($1.85 / Serving)
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Supports Testosterone Levels In Athletes Looking To Optimize Strength & Performance*

What's in Animal Animal Stak

21 Packs
Serving Size 1 Pack
Servings Per Container21
Amount Per Pack %DV
Vitamin D (as cholecalciferol) 25 mcg 125%
Vitamin B6 (pyridoxine HCl) 10.5 mg 618%
Magnesium (as oxide) 450 mg 107%
Zinc (as oxide) 30 mg 273%
Pro Testosterone Complex 1500mg
Tribulus Terresteris Extract (whole plant) (standardized for protodioscin & steroidal saponins) **
Eurycoma Longifolia Complex (eurycoma longifolia powder, eurycoma longifolia extract) (root) **
Fenugreek (seed) (steroidal saponins) **
Stinging Nettle Root **
Maca Root Extract (lepidium meyenii) **
Growth Hormone Support (with Sustamine™) 1500mg
Arginine HCl **
L-Lysine HCl **
L-Glutamine **
L-Alanyl-L-Glutamine **
Gamma Oryzanol **
Alpha Glycerylphosphorylcholine (alpha GPC) **
Aromatase Combating Complex 300mg
Polygonum Cuspidatum Root Extract (resveratrol) **
Calcium D-Glucarate **
Diindolylmethane (DIM) **
Hormone Amplifying Blend (with AgmaPure™, AstaPure®) 500mg
L-Carnitine Fumarate **
Agmatine Sulfate **
Quercetin **
Astaxanthin **
Piper Nigrum Extract (fruit) **
Restorative Support Complex 500mg
Milk Thistle Extract (seed) (silymarin) **
Astragalus (root) **
Ashwagandha Extract (whole plant) **
Na-R-Alpha Lipoic Acid (Na-R-ALA) **
Coenzyme Q10 **
** Daily Value (DV) not established.
Other Ingredients:
Gelatin (capsule), Silicon Dioxide, Magnesium Stearate, Dicalcium Phosphate, Stearic Acid, Titanium Dioxide, FD&C Blue #1, FD&C Yellow #5, FD&C Yellow #6.
Contains: Soy. Made in a GMP facility on equipment that processes milk, soy, egg, peanuts, tree nuts, fish, shellfish, and wheat.

Directions For Animal Stak: Take a single pack daily for 21 straight days. On training days, take it 30-45 minutes before lifting. On nontraining days, take it prior to bed. For best results, “cycle” this product following a schedule of three weeks on and one week off. Best results if used by those who are 25 years or older. However, due to its ability to help modulate free test levels, it could benefit others as well. Consider “stacking” Animal Stak with either Animal Test or Animal M-Stak for even greater gains.

Warnings: Not for use by individuals under the age of 18 years. Do not use if pregnant or nursing or have a serious medical condition. Consult a physician before using this product. Use of this product may be banned by some athletic associations. Athletes should definitely consult with their sanctioning authority before use. Exercise good judgment and keep this out of reach of children. To keep it as fresh as possible, store this product in a cool, dry place, away from heat, moisture and sunlight. You know the drill.

* 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.
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