Animal Stak vs Test Freak (Our In-depth Comparison)

If you’re hoping to boost your levels of testosterone in a completely natural way, then supplements such as Animal Stak and Test Freak may be the ones for you.

Comparison of Animal Stak vs Test Freak

To determine which of the two is better, we have done thorough research and compiled everything you need to know about them including their ingredients, price, and safety. 

Our Top Testosterone Booster

TestoPrime is currently our No.1 Ranked Testosterone Booster. It has the most effective ingredients formula on the market according to our research and testing.

Comparison at a Glance 

·      Use Animal Stak for the cheaper supplement 

·      Use Test Freak for the supplement with a return policy 

·      Use Animal Stak for the supplement with better customer reviews 

·      Use Test Freak for the supplement made in GMP certified facilities 

See also: Test Freak vs TestoFuel

Ingredients Comparison    

Let’s see how the formulas of the two supplements compare and what research there is supporting their ingredients. 

Animal Stak 

The formula of Animal Stak consists of proprietary blends, which means that it is unknown what dosages of each individual ingredient are used in the product. 

We do, however, know what the ingredients used in the proprietary blends are.  

One of the ingredients in Animal Stak is Logjack extract, which has been found by studies to improve mood, lower stress, and help boost exercise training. 

Animal Stak also contains Tribulus Terrestris. This is believed to help enhance athletic performance and make it easier for bodybuilders to gain muscle and reach their goals quicker. 

Some other benefits of Tribulus Terrestris include that it is able to improve heart conditions. 

Another ingredient of Animal Stak is stinging nettle root. This is perhaps most popular for its antibacterial properties, and its ability to treat urinary issues. 

Furthermore, studies have found that it is able to boost levels of free testosterone. It does this by binding to an inhibitor of testosterone, the sex hormone binding globulin, SHBG.  

By attaching to SHBG, the stinging nettle root extract prevents it from inhibiting the production of testosterone, allowing levels of the male sex hormone to stay high. 

Test Freak 

Similar to Animal Stak, Test Freak contains Tribulus Terrestris, the benefits of which have been outlined above. 

Test Freak also contains Fenugreek. This has been found to boost testosterone and help to increase energy, sexual function, mood, and cognitive function. 

One study found that 8 weeks of fenugreek supplementation can significantly improve strength and body fat whilst leading to an increase in testosterone.  

Another study found that fenugreek was able to increase testosterone by 46% in 90% of participants, whilst boosting libido and sperm count. 

Another ingredient of Test Freak is Zinc. This is a mineral which has a range of health benefits, including being essential to men’s sexual health.  

It has been found that zinc deficiency can lead to low levels of testosterone, and that the mineral is important for maintaining sex drive and overall sexual performance.  


Neither supplement wins when it comes to ingredients. They both contain completely natural ingredients that have research supporting their effectiveness. 

Our Top Testosterone Booster

TestoPrime is currently our No.1 Ranked Testosterone Booster. It has the most effective ingredients formula on the market according to our research and testing.

Safety and Potential Side Effects 

How safe are the two supplements? What side effects might you experience? Let’s take a look. 

Animal Stak 

All the ingredients in Animal Stak are completely natural, however the supplement itself is not FDA approved, so you might experience some side effects from it.  

Some customers who used Animal Stak reported experiencing trouble sleeping, acne, diarrhoea, and even erectile dysfunction.  

Furthermore, the ingredient longjack has been known to cause restlessness, and stinging nettle root could lead to sweating and stomach pain. 

However, as with any supplement, each person’s body is different and therefore might react to Animal Stak differently. 

Test Freak 

The ingredients in Test Freak are completely natural, and therefore there shouldn’t be any major side effects.  

However, the product is not FDA approved and there have been reports of people experiencing certain side effects including bloating, nausea, wheezing, gas, and trouble breathing.  

Some people have also reported experiencing an allergic reaction from the supplement, but this is very rare.  

One cause for concern over the safety of Test Freak is that they warn people not to take the supplement for more than 8 weeks continuously. 


Animal Stak wins when it comes to safety.  

Whilst both supplements have potential side effects, the fact you can’t take Test Freak for more than 8 weeks in a row is rather worrying. 

Related: Animal Stak vs TestoGen

Customer Results 

One of the best ways to see whether a supplement is worth buying is to look at reviews from people who have used it before. Let’s compare results seen from consumers. 

Animal Stak 

There are many reviews on Animal Stak, with people experiencing a mixture of results from the supplement.  

Some people said they loved the product and saw a significant gain in muscle mass. Many also reported being able to train longer and harder at the gym, lifting heavier weights than they could before.  

Furthermore, people reported losing a lot of weight with the help of Animal Stak. One customer lost 25lbs in only one month from pairing the supplement with a healthy diet and regular exercise.  

However, there were many negative reviews of Animal Stak. One customer said they suffered from a horrible allergic reaction after using the supplement. There were also numerous comments of people saying it led them to sweat excessively. 

Many also complained about the supplement not working, with people saying they didn’t see any results. In fact, there were even a couple reviews of people saying they couldn’t lift as much as they used to and that the product had hindered them and their fitness.  

Test Freak 

There are many reviews on Test Freak. Many said the supplement made them feel years younger, stronger, and gave them a lot more energy. 

Customers also reported feeling less tired and fatigued after using the supplement.  

Numerous reviews spoke about how Test Freak helped to maximise their gym results, and that the supplement worked great when paired with a healthy diet and a good exercise regime. 

There were, however, some negative reviews of Test Freak. One of the most common comments on Amazon were that customers received opened bottles of the supplement, with the seals broken and people suspecting they had been sent returned products. 

There were multiple comments of people saying they felt Test Freak was a waste of money as it didn’t lead to any changes or improvements.  

One customer said that the supplement made them have a rash on their face after four days of taking it. 


There is no clear winner when it comes to customer reviews.  

They both had some very negative reviews with people using Animal Stak saying it caused some issues for them, and people using Test Freak saying they received opened bottles. 

Related: 5 Animal Stak Alternatives

Manufacturing and Brand 

Who makes Test Freak and Animal Stak? Are they reliable? Let’s find out. 

Animal Stak 

The manufacturers of Animal Stak are Universal Nutrition, who are based in New Jersey. 

The company is known for producing safe, legal substitutes for steroids. However, in our research, we couldn’t find any information about the safety or standard of the manufacturing facilities.  

Furthermore, the company says how their promises and statements have not been evaluated by the FDA, and that their supplement isn’t made to treat, diagnose, or cure any type of illness. 

Test Freak 

PharmaFreak are the manufacturers of Test Freak. They are a company that have been around since 2008. 

They assure that they only use ingredients that are clinically proven to bring benefits in their products.  

The manufacturing facilities are GMP certified, which assure top standard production. However, the facilities are not FDA approved. 


Test Freak wins when it comes to manufacturing as their manufacturing facilities are GMP certified, whereas those of Test Freak are not. 

Price and Value for Money 

Let’s take a look at how much these two supplements will set you back.  

Animal Stak 

To buy one bottle, or one month’s supply, of Animal Stak, it will cost you $39.99. This is on the lower end of the price bracket for testosterone supplements.  

It can be purchased from Amazon or the official website, however there was very little information available about a return policy or discounts for bulk ordering. 

Test Freak 

One bottle of Test Freak will cost you $59.99 and it should last you a whole month. 

It doesn’t appear that there are any discounts for bulk ordering Test Freak, however they do have a 30 day return policy so you can get a full refund if you aren’t happy with your purchase. 


Animal Stak wins when it comes to price as it is considerably cheaper than Test Freak. 

Pros and Cons 

Animal Stak 


  • Affordable 
  • Research to back ingredients 
  • Positive customer reviews 
  • Boosts athletic performance 
  • Helps weight loss 


  • Not FDA approved 
  • No information on return policy 
  • No discounts for bulk ordering 
  • Proprietary blend means dosages unknown 
  • Reduced fitness for some customers 
  • Many negative reviews 

Test Freak 


  • 30 day return policy 
  • GMP certified facilities 
  • Boosts energy 
  • Boosts fitness 


  • Can be expensive 
  • No discount for bulk ordering 
  • Not FDA approved 
  • People sent opened bottles 
  • Many negative reviews 
  • Side effects possible 

Animal Stak vs Test Freak – Final Verdict 

This is a very close battle, however Animal Stak narrowly takes the win as the better testosterone booster. 

This is primarily because of the warning from Test Freak that you can’t take the supplement for more than 8 weeks continuously. Supplements are supposed to be used in the long term, and this warning means the supplement can’t be used properly and also raises concern for its safety.  

Animal Stak is also considerably cheaper than Test Freak and appears better value for money. 

Our Top Testosterone Booster

TestoPrime is currently our No.1 Ranked Testosterone Booster. It has the most effective ingredients formula on the market according to our research and testing.