ISA-TEST GF Review – High Performance Test Booster – iSatori

isa test gf review



CleanLeanMachine Rating



  • Some decent ingredients
  • Big company


  • Some ingredients underdosed
  • Proprietary blends
  • Too many ineffective ingredients
  • Suggested serving not ideal

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Another day, another product for us to put under the microscope. Todays ISA-TEST GF Review will be an interesting one if the hype is anything to go by.

We like the branding, nothing over the top about it and for us, this often screams of a professional company, rather than a gimmick.

That is the problem with a lot of products, their T boosting abilities are outshone by over the top marketing and big promises whereas if you actually look closely, they are covering up a poor testosterone booster.

Good job we are here to not be fooled, and also make sure you aren’t either.

The last thing we want is for our customers to be burnt by a product in the shape of a hammer but with the effectiveness of a sponge.

Testosterone boosters are becoming increasingly popular, so many people want to achieve new personal bests in the gym, with visible results to go with it. Our T levels start to decline year on year from around the age of 30, so supplementing is a good idea for many.

This T booster today promises to promote Muscle Mass, Strength and Sex Drive. This is the very least we expect from a testosterone booster so let’s see if they can deliver.

ISA-Test GF Review: Who Makes ISA-TEST GF?

isa test gf This T booster is made by iSatori.

Their website is pretty slick and clearly, they are a company to rival the bigger ones out there. It is heavy on the eyes as there are a lot of visuals trying to gain our attention.

They are based in the USA and started in 2001 and their athletes include Brian Shaw, 4x worlds strongest man.

iSatori only issue refunds on first-time purchases so it might be best to think twice about second chances if you aren’t sure about a product.

Their site has numerous articles and even help for some of your fitness goals. In terms of the store, this is where you can find just about everything from pre-workouts to their fat loss metabolism activator product.

Oh and merch, lots of merch.

ISA-TEST GF Ingredients

isa test ingredientsNow we get to take a proper look at what goes into this product.

The initial signs are not going how we would expect or prefer.

There are numerous proprietary blends contained in this product which means a lot of the dosages are not given for individual ingredients. Instead, they are grouped together with numerous ingredients with the overall dosage revealed.

This is a problem because we cannot see how effective each ingredient will be. Still, not every ingredient is part of a blend so we will find out what we can.

The suggested serving is not ideal either. They say you should take 4 capsules an hour before working out or 4 capsules an hour before you go to bed.

This isn’t ideal taking it all at once. We prefer a supplement that you can take in 3-4 servings a day, that way the benefits are spread out.

Vitamin C

Although the general health benefits of this ingredient include the fact that it would aid endurance is one of them. In terms, if directly affecting your T there doesn’t seem to be any direct benefits.

Strange that this would take up the top spot on their ingredients list as it’s about as pointless as it gets really.

The 25 mg included is a waste.

Vitamin B6

Much more like it, this is a great ingredient and found in many of our top recommended testosterone boosters.

It is good for suppressing the effects of estrogen, meaning our body can make room for more testosterone.

The 7 mg included will do a good job as well.


Another good inclusion here.

Magnesium is good for reducing the effectiveness of SHBG (Sex Hormone Binding Globulin). This binds your T, making it useless. When it is less effective this means more testosterone is available.

According to the standard dosage for supplementation is 2-400 mg, making the 300 mg in ISA-TEST GF is optimal.


About as good as it gets and a staple ingredient in most of our top recommended testosterone boosters.

To let you know how important it is – our bodies cannot create more testosterone without it.

On top of this, it stops us from depleting testosterone levels during intense exercise. This means there is more saved up for later.

It is also great for stimulating the luteinizing hormone. This communicates with the testes to create and release more T.

The 20 mg included in is an optimal dosage. One of the best ingredients in this ISA-Test GF review.

Now we move onto to some of the ingredients contained in Proprietary blends.


And it’s a bad start.

Quite frankly a useless ingredient when it comes to testosterone.

There were studies that once supported its potential as a T booster, but these have been widely dismissed. For some reason, it keeps popping up from time to time.

We’ve no idea why though.

Epimedium Extract

Epimedium Extract is often believed to be an aphrodisiac – it is thought to be a male sexual enhancer.

It is generally considered to be under the potential category but most quarters dismiss it’s testosterone boosting capabilities.

The fact is, it is part of a blend, so we would have no idea how effective it is even if it is the best ingredient going.

Tongkat Ali Extract

It is a well-known libido enhancer, we are fine with that side. We are just waiting for this product to really get going.

In terms of T boosting, there seems to be little evidence backing it up. Another mildly beneficial inclusion.


Finally another decent ingredient.

We like this because it is a well-known libido enhancer, but it doesn’t just live off of that.

It is also good for controlling healthy insulin levels, this means our testosterone can thrive.

Does this contain an optimal dosage of Fenugreek? We have no idea as it is part of a blend.

Velvet Bean

Most commonly known as Mucuna Pruriens which is one of the better T boosters out there.

Good for promoting Human Growth Hormone as well as, supporting your T. It also blocks prolactin, too much of this can really drive down your testosterone levels so this is a good inclusion.

Is there enough to really take effect? We will never know – yup, proprietary blend.

Butchers Broom Extract

No, you read that correctly, we’re not joking!

Eye-catching as a name sure, but a bit of a let down for testosterone purposes. The fact is this shrub does have some health benefits including a boost of energy.

It is often used as a laxative and a circulation booster.

ISA-TEST GF Side Effects

There doesn’t appear to be anything in this product that concerns us.

The proprietary blend would usually raise a few eyebrows but since there aren’t any stimulants here, it shouldn’t be a problem.

Always check the label for any allergies though.

ISA-TEST GF Review Pros and Cons


  • Some decent ingredients
  • Big company


  • Some ingredients underdosed
  • Proprietary blends
  • Too many ineffective ingredients
  • Suggested serving not ideal

ISA-TEST GF Review Conclusion

Well, the ingredients that were not in the proprietary blend were, for the most part, good ingredients (with the exception of Vitamin C).

For such a big company it is amazing that they did not include Vitamin D or D-Aspartic Acid as part of their T booster, these are two of the best ingredients available.

We also cannot forgive the proprietary blends. There are too many of them with too many ingredients in there. We’d like to see how much of both Fenugreek and Mucuna Pruriens are included here.

As any ISA-Test GF Review should say, we can’t recommend this product. There are just too many products out that provide a much more effective and reliable testosterone boost. Look for a product that has top T booster ingredients at optimal dosages.

And stay away from proprietary blends, use them, and you are guessing at how effective an ingredient is!

Best Testosterone Boosters on the Market

It’s pretty much a minefield out there, especially if you don’t know what you are looking for.

Too many companies are producing ineffective and sometimes dangerous testosterone boosters – including ingredients like DHEA and other things to look out for! This is why we compiled a list of the top safe and proven testosterone boosters on the market today…

We’ve rounded up the BEST testosterone boosters on the market in our Top Testosterone Boosters page – check it out to find a safe, natural and effective testosterone booster that suits you.

Top Testosterone Boosters - TestoFuel, Prime Male, Testogen, Hunter Test, Performance Lab Sport T-booster


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