Tyler Sellers
Published by Tyler Sellers
Fact checked by Donald Christman, BHSc FACT CHECKED
Last updated: October 28, 2020

Whether I’m working with professional athletes or just the average Joe who wants to get more ripped, any time I mention testosterone boosters, alarm bells seem to go off.

And I totally get it.

If you look at media reports about steroids, they always seem to use the term interchangeably with testosterone. The problem is that there is a huge difference between using banned drugs that increase muscle mass, and supplements that contain only natural ingredients.

So, it always takes a good half an hour for me to explain what I actually mean by increasing testosterone levels.

The funny thing is that anytime someone asks me for some of the banned stuff (which happens surprisingly often), I hand them a few TestoFuel capsules for free 😉

Anyway, I’ve already given away the name of a product I’ve spent many months researching, reading through hundreds of TestoFuel reviews, as well as testing it on myself.

And on this page, I’m happy to share all that information, from what’s actually in it, to how it works, as well as TestoFuel side effects.

So, sit back and enjoy some completely free information.

What Is TestoFuel?

testofuel product

TestoFuel is an all-natural nutritional supplement by Roar Ambition that claims to use scientifically proven and all natural ingredients to increase testosterone production.

We’ll get to the details of the TestoFuel ingredients shortly, but I can give away at this stage, that my dietician (shout out to Jenny) has confirmed that everything in this product is indeed natural.

Now, testosterone gets a bad name as it’s always associated with alpha males, aggressive behavior, and illegal doping scandals (1).

But the truth couldn't be further from the truth, at least when we’re talking about natural ranges.

The male sex hormone is absolutely vital to your overall health and well being, and if your levels drop too low, then you can suffer some quite severe health issues in the long run.

From a sports and fitness perspective, TestoFuel is aimed at increasing testosterone levels to help athletes perform better during physical activity, boost the creation of muscle mass, and reduce body fat. And it’s important to repeat, that this can be achieved in a natural and perfectly legal way.

Does TestoFuel Really Work?

toned male body muscle growth

Yes, TestoFuel works to increase testosterone levels and muscle growth, and I can say that based on 6 months of research by interacting with users online, monitoring progress with my clients that take it, as well as taking it myself on a regular basis.

As a testosterone booster and muscle building product, some of the TestoFuel results I have seen did initially look completely fake to me.

And there are probably quite a few online reviews that you can completely ignore as boasting, especially those involving increases in muscle mass.

But, if you have been struggling with muscle building and muscle growth despite working hard at the gym and eating well, then it could be down to low levels of testosterone, which is something that can be medically and naturally rectified. (2)

So, let’s take a look at how this can be done with natural ingredients.

TestoFuel Ingredients


I want this Testofuel review to focus on the important things so you can have a reasonable idea of what TestoFuel does and why it has been shown to be effective. At this point, you’re probably still a bit suspicious about the ingredients.

So, let me put your mind at ease with this list.

D-Aspartic Acid

Yup, it’s a mouthful to pronounce, so let’s just call it DAA. This amino acid plays an indirect role by triggering a part of your brain to regulate certain hormones that send a signal to your family jewels to produce some extra testosterone.

L-aspartic acid is produced in nature, including in your body, and used to build proteins. However, D-aspartic acid isn’t used to build proteins. Instead, it plays a role in making and releasing hormones in the body.

- Grant Tinsley, PHD Sports Nutrition

Vitamin D

You’ll find this referred to as the sunshine vitamin, and it has many critical health benefits. But one area that is often understated is the fact that scientific studies have shown that it results in increased total and free testosterone levels. (3)

Sun is not the only source, though. You could up your game with some vitamin D supplements as well.

Oyster Extract

It’s a well-known testosterone booster and aphrodisiac, not just an old-wives-tale. As one of the best natural sources of zinc, oyster extract has been linked to an improved reproductive function in both men and women.


And speaking of zinc, TestoFuel contains an added dose of it as there have been countless studies that prove its effectiveness in increasing testosterone levels. It’s an essential ingredient for men to maintain balanced levels of testosterone.


In Asia, ginseng has been used as a love life enhancer for thousands of years, and this natural herb also helps with overall hormonal balances that can improve your overall mood and testosterone levels.


Yes, this herb called fenugreek actually does originate in Greece, and studies have shown that it can stop the sex hormone binding globulin, which has a negative effect on testosterone.


You probably know that this is important for muscle contraction and relaxation during heavy and intense training periods. The makers claim it’s added for the ability to increase testosterone levels, but I haven’t been able to confirm that claim.

Vitamin B6

Vitamin B6 is important for your overall health, skin appearance, eyesight, and even liver function. But it also plays a role in the balancing of both male and female sex hormones. It doesn't only regular one's sex drive, but keeps the hormonal balance in check as well.

Vitamin K2

You probably won’t hear much fanfare about vitamin K2 as its effects are quite subtle. But it does play a role in overall hormone production and release, so it’s important for TestoFuel's effect on muscle growth.

Vitamin D3

Vitamin D3 is typically combined with K2 it testosterone boosters. Together, vitamin D3 and K2 speed up the release of testosterone in the body and may also lower triglyceride levels which may result to better and more efficient muscle building and growth.

Check out our article on the best D3 and K2 supplements.


Testofuel benefits banner

OK, we’ve clarified the natural ingredients, so it’s now time to take a closer look at what all this extra testosterone will actually do for you from an athletic point of view.

These are the main benefits claimed by the makers, and I used online reviews and interviews with people at my gym to see if I could confirm them. (4)

1. No Testosterone No Muscle Growth

Testosterone boosters aren't just for your sex drive.

This is indeed quite a true statement. Many athletes focus solely on considering supplements that try to increase growth hormone production. But when it comes to muscle building and muscle mass, the two work side by side.

That’s why I often ask clients who struggle to trigger any kind of significant muscle growth to have their testosterone levels checked. If they haven’t been lying about their diet, then 9 times out of 10, this is one of the reasons they are struggling.

2. Feel More Energized

Muscle building is a direct effect of healthy testosterone levels. But it also results from the extra energy it provides.

Who doesn’t want that extra energy at the gym, especially when you’re starting to struggle halfway through your routine? Increased strength and endurance is certainly a known effect of testosterone, otherwise, some athletes wouldn’t be resorting to illegal drugs that aim to achieve the same.

3. Speed Up Recovery Times

When you think of recovery supplements, you probably have your standard post-workout whey protein in mind. While the amino acids it provides are vital, your body needs some extra signals to maximize muscle repair.

And just like with the body fat burning and bulking process mentioned above, a good and healthy dose of testosterone on a high-intensity day will go a long way.

4. Improved Mood And Motivation

People often think that a high testosterone level makes men aggressive. And while in very large doses that can actually be the case, a proper balance has been noted in studies as affecting brain function.

Add to that the extra energy, and you can see how a product like TestoFuel has quite a few reviews that mention increased motivation. When you're more energetic and motivated during workouts, muscle growth will happen much more efficiently.

5. Increased Libido

Yes, you can’t mention testosterone and not mention your bedtime exercises as well. It certainly is tied to sex drive, and significantly low levels can cause impotence and erectile dysfunction.

So, if you do decide to try out TestoFuel, then you can look forward to some increased libido.

Sexual excitement is caused in part by a rise in testosterone, though other factors contribute. Testosterone levels rise and fall throughout the day. Some men notice they are more excitable when testosterone is high, which is usually in the mornings.

- Alan Carter, Clinical Pharmacist

Any Side Effects?

man with upset stomach

No, TestoFuel doesn’t have side effects as long as you don’t have any allergies or intolerances to the ingredients listed above.

One of the most important ones to keep in mind is the oyster extract. If you have a problem with shellfish, then this is probably one product to avoid to keep any allergic reactions or side effects in check.

However, after going through hundreds of TestoFuel reviews, I was only able to find isolated references to some stomach upset, and usually, those were down to people taking the full daily dose in one go without food. (5)

So, overall, there really are very limited TestoFuel side effects that you would encounter. This is made possible by the fact the Testofuel contains mostly natural testosterone booster ingredients.

If this doesn't work for you or you experience intolerable side effects, you can also try other testosterone boosters. Some of these also contains natural testosterone increasing ingredients as well.

Other T-boosters:

Who Should Take Testosterone Boosters?

bored man sitting on sofa

Anyone can take a testosterone booster but it is commonly recommended to males with low testosterone levels.

The most common causes of low testosterone levels are natural aging and stress. In both cases, your T count can drop significantly and if you have any concerns about the symptoms, then make sure you get medically tested.

Your T count is measured in nanograms per deciliter (ng/dL), and anything below 300 is considered low.

The symptoms can vary from man to man, but low libido or sex drive, trouble building muscle mass, deteriorating bone density, and a lethargic feeling are all quite common. (6)

A good approach to take is to have TestoFuel before and after blood tests done to see what impact it will have.

Related: Our Recommended Testosterone Boosters

When Should You Take It?

testofuel product

Testosterone production should be level throughout the day, and the makers recommend taking 4 capsules per day, spread out over your meals and snacks. (7)

The capsules are easy enough to swallow, but I would suggest not taking them without food, especially when you’re just starting.

It’s more likely that you encounter some stomach upset if you take them after fasting.

Basically, try to get into the habit of taking it with your breakfast, lunch, and dinner, as well as an afternoon snack.

How Do You Know It’s Working?

The first thing I would mention is that you shouldn’t expect to see major changes in the first couple of days, especially in terms of muscle building or muscle growth. It will take some time for your body to start responding and ramp up activity levels in your testes. (8)

Improved sex drive can often be the first thing you notice, but your performance at the gym and muscle building should gradually start improving as well. Make sure you keep a detailed journal to identify any improvements as they happen.

Brenon Brodkins from the US posted this photo to show how TestoFuel helped him in his bodybuilding journey. (9)

testofuel testimonial photo

How Long Does It Take For Testofuel To Work?

According to the company, it takes 6 to 8 weeks for TestoFuel to work and for you to get the best results.

However, I did find online reviews that mentioned they started noticing their TestoFuel bodybuilding showing results by the time they got to the end of the first bottle, which is about a month.

Testosterone production is something that is influenced by your diet and activity levels as well, so I always ask my clients to keep a very detailed journal of everything they eat and their exercise performance. (10)

With this data, you can then better chart out your progress and see where you may need to make some other improvements.

You can also watch this video to learn more about TestoFuel.


How Much Does TestoFuel Cost?

testofuel thumb

The currently advertised TestoFuel price is $65 plus shipping and handling for a 1-month supply bottle of 120 capsules.

However, there are some really good bulk-buy savings available.

If you buy two bottles, they’ll throw in free shipping, and if you buy 3 bottles, you’ll get an extra bottle, free shipping, and 2 ebooks on nutrition and training all for $195.

Add to that the 90-day money-back guarantee, and you can say that they do offer a pretty decent deal.

Where to Buy TestoFuel?

using credit card to shop online

When it comes to the question of where to buy TestoFuel, you should always head directly to the official website. It’s not available in stores, so if you do see it on a shelf somewhere, then I would be suspicious of whether it’s real.

It’s occasionally available on some reseller pages, but I would caution there as well. I'd still go for the official website regardless.

You won’t get the same guarantee, and I haven’t seen any bulk offers that come close to what the company offers. The official website also offers money back guarantee and free worldwide delivery with bulk packages.

By cutting out the supply chain, they are able to keep the prices low and offer the 90-day guarantee.

Enjoyed this post? See our other recommended testosterone booster: Testogen and its full review.


men lifting weight

Is TestoFuel safe to take?

Yes, TestoFuel is safe to take as long as you don’t have any allergies to the ingredients. The only instances where I saw some adverse reactions were down to taking the full dose in one go, so make sure you stick with the recommended intake.

What is average testosterone level by age?

The average testosterone level by age is 640 ng/dL for the 25 to 45 age range, 560 ng/dL for the 45 to 65 age range, and will gradually decrease to below 400 for men over 80. These averages are influenced by diet and exercise and other medical conditions as well.

How can I boost my testosterone naturally?

You can boost your testosterone naturally by increasing the amount of exercise you get, eating a healthy and balanced diet, and minimizing stress levels. Add to that some natural supplements like zinc, vitamin D, and ginseng, and you can achieve some natural improvements.

Are testosterone boosters Illegal?

No, testosterone boosters are not Illegal, as long as they contain natural ingredients and no medically controlled substances. What most people think of is the steroids that are so commonly used by professional athletes, but natural products are completely legal.

Should You Buy TestoFuel?

If you’ve been struggling with a bulking phase at the gym despite having a healthy diet, then it could be down to a low T count.

Ideally, you would get this checked through a blood test, but this isn’t necessary.

Because TestoFuel is an all-natural product, it won’t do you any harm, and based on countless TestoFuel reviews and my own experience, I can say that it does work and has given my clients the results they were looking for.

Take advantage of the great offers and money-back guarantee to see for yourself.

testofuel product


Our #1 Recommendation

  • Rich in ingredients such as D-aspartic acid, vitamin D and zinc
  • Helps stimulate the formulation of HGH
  • Also contains the anti-inflammatory fenugreek
  • Satisfaction guaranteed or your money back.
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