Force Factor Alpha King Fury Review



  • Fenugreek Seed Extract can boost T levels
  • L-Citrulline can raise nitric oxide levels
  • Beta-Alanine can improve muscular endurance


  • Beta-Alanine can also cause itchy & tingly side effects
  • Missing key test boosting nutrients (eg. Vitamin D3)
  • Caffeine Anhydrous dosage is slightly high (increased risk of jitters)

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About The Product: Alpha King Fury

Alpha King Fury is a pre-workout/testosterone booster hybrid supplement made by Force Factor. It costs $39.99 for 20 serving containers, which puts it against the premium pre-workouts on the market.

Personally, we’re not fully convinced that hybrid supplements are worth it; we personally set 1 big target at a time with supplements, so we choose specialized test boosters or pre-workouts, depending on our goals at the time.

However, we’re going to give Alpha King Fury a chance to prove itself to us in this review. We’ll do this by analyzing its nutrient profile in the next section, but first, we’ll tell you more about the company behind it.

Who is Force Factor? 

Force Factor might not be a household name like MuscleTech or Optimum Nutrition around the world. But they certainly do command some respect; they’re creating a growing list of supplements that are gaining a lot of attention online.

We’ve also reviewed their dedicated testosterone booster called Alpha King Supreme. We’ve also taken a look at their pre-workout called VolcaNO Extreme, but you’re here to learn more about this latest addition, Alpha King Fury.

As a result, we’ll take you through each ingredient in Alpha King Fury below…

Alpha King Fury Ingredients Explained

From first glance, there’s not a great deal wrong with Alpha King Fury. It doesn’t contain many nutrients that have been linked with harmful nutrients, so that’s certainly a positive in our opinion.

We’re actually happy that Fenugreek Seed Extract has been added here, as it’s shown to be capable of raising T levels in past studies. So we can see how Force Factor have tried fulfilling Alpha King Fury’s duty as a hybrid test booster product.

In terms of being a pre-workout supplement, this contains the right ingredients; we like that Force Factor has added L-Citrulline, which has shown to raise nitric oxide levels. And Beta-Alanine can be very beneficial at improving your muscular endurance too.

However, one ingredient that we personally try to avoid is Yohimbine; this has been linked with causing numerous nasty side effects in the past.

Anyway, we’ll expand on this as we take you through each ingredient in Alpha King Fury. By the end of this review, you’ll have a good idea of how safe and effective this pre-workout/test booster really is.

Alpha King Fury Supplement Facts.

Here’s Everything You Need To Know:

Fenugreek Seed Extract 

Fenugreek Seed Extract is a herb that’s been used in Ayurveda (traditional Indian medicine). While not all herbs that have been used traditionally work, this has shown to be effective at raising T levels in numerous clinical studies.

As a result, we’re happy to consider Fenugreek Seed Extract as a great addition to any T-Booster supplement. And as Alpha King Fury does claim to boost T levels, it does fit here.


In case you’re wondering, AstraGin is a patented ingredient that’s believed to increase the absorption rate of supplements overall.

The good news is that there are studies that show Astragin does work. However, as it’s not going to improve your workout or testoterone levels directly, we don’t believe that it’s a key ingredient in Alpha King Fury here.


When we first started testing pre-workout supplements, we were initially against Beta-Alanine being in supplements; this is because it can cause an itchy & tingly side effect known as paresthesia.

However, once you get used to this sensation and realize that it’s not harmful, then you begin to appreciate Beta-Alanine. We won’t lie though, it’s not for everyone.

So what does it do? Well, this ingredient has shown to improve your muscular endurnace in the gym. So it can be a great addition to pre-workout supplements.

Ultimately, it does depend on whether you’re willing to suffer from the slight side effect when taking Beta-Alanine. But as we mentioned, paresthesia isn’t harmful, it’s just a little distracting at first.


L-Citrulline is one of the best ingredients in Alpha King Fury. It’s proven to raise your nitric oxide levels, which ultimately leads to enhanced muscle pumps in the gym.

We’re also happy to see that Force Factor has included an optimal dosage of L-Citrulline in Alpha King Fury.

If we were to really wanted to be overly critical, then we would state that Citrulline Malate would have been a better addition to this product. But again, this would be too harsh.

Overall, there’s no complaints from us here.



You might be familiar with Taurine as it’s quite commonly included in energy drinks. But it has no effect on energy levels as it’s not a stimulant.

So what does it do? Well, Taurine is known for being able to help prevent cramping during exercise, so it’s certainly not useless.

As a result, we do consider Taurine to be a useful addition to pre-workout supplements as a great ‘bonus’.

Caffeine Anhydrous 

Caffeine Anhydrous is the best stimulant that you can find in supplements, in our honest opinion.

Why? Because it’s a pure form of caffeine; it’s simply dehydrated into powder form so it can be added into supplements, which is why it’s called ‘Anhydrous’.

However, as coffee lovers will know, consuming too much at once can cause jittery side effects, which isn’t ideal.

How much is too much? Well, this is very subjective, but for us personally, over 200mg is ‘too much’ for us.

The bad news for us is that Alpha King Fury contains 250mg Caffeine Anhydrous, so it might cause us jitters on regular occasions. But for those that need bigger hits of caffeine, this might be beneficial – it depends on your tolerance to this stimulant.

For this reason, we won’t make up your mind for you. Learn your tolerance levels and choose pre-workout supplements based on how much you can handle.


We’ll be completely honest; this is the first time that we’ve seen Thinkamine in a supplement before. But we’ve completed some research for you – so we hope that you are greatful…

Basically, ‘Thinkamine’ is Force Factor’s patented form of Vincamine; this is a nootropic ingredient that’s believed to help improve blood flow to your brain (to improve mental performance).

We believe that it’s been added to Force Factor to help strength your ‘mind-muscle-connection’ while lifting weights. But to be honest, Caffeine Anhydrous will boost your focus enough to benefit your gym session, so there’s no need for dedicated nootropics in Alpha King Fury.

Saying that, we’re still happy to accept this as a useful ‘bonus’ addition here.

Yohimbine HCI 

If there’s one ingredient that we wish had not been added to Alpha King Fury, then it’s this.

Why? Because Yohimbine has been linked with causing numerous side effects in the past, so it’s something that we would rather avoid.

While we can’t avoid that there have been studies linking Yohimbine with fat loss, we personally don’t think that it’s worth the risk. Ultimately, if you’re main aim is to lose body fat, then you should check out specialized fat burner supplements.

Basically, we’re a little confused as to why Yohimbine has been added here; Alpha King Fury is a pre-workout/test booster hybrid, but not a fat burner…


See Your Best Options In Our
» Top 3 Pre-Workouts Page «
» Top 3 Test Boosters Page «

Side Effect

While the majority of the ingredients in Alpha King Fury are mostly safe, Yohimbine has been known to cause numerous side effects in the past.

We’ll also note that Alpha King Fury contains 250mg Caffeine Anhydrous, which is quite a big dosage; we recommend knwoing your tolerance so that you can see whether you can handle this dosage without suffering from jittery side effects.

Finally, Beta-Alanine can cause a side effect called ‘paresthesia’. While this isn’t harmful, it can be distracting for those that haven’t experienced it in the past, but we’ve learned to get used to it after a few servings.

Here are the potential side effects of taking Alpha King Fury: 

  • Nausea (Yohimbine)
  • Anxiety (Yohimbine)
  • High Blood Pressure (Yohimbine)
  • Dizziness (Yohimbine)
  • Jitters (Over 250mg Caffeine Anhydrous)
  • Energy Crashes (Over 250mg Caffeine Anhydrous)
  • Itchy & Tingly Skin (Beta-Alanine)

Alpha King Fury Review Conclusion

While we’re not the biggest fans of ‘hybrid’ supplements that try to do 2 things at once, Alpha King Fury is one of the best hybrid products attempts that we’ve seen.

Force Factor have done many things right, especially by adding tried-and-tested nutrients such as Fenugreek Seed Extract and L-Citrulline. Not only that, the dosages of most ingredients are optimal too.

However, the main issues we have with Alpha King Fury are the slightly overdosed Caffeine Anhydrous dosage (250mg per serving), and the inclusion of Yohimbine too. Ultimately, it’s these small issues that let the product down, in our honest opinion.


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