Testosterone decline is one of the most common health issues men face today, with an estimated 1 in every 4 men over 30 suffering from low testosterone levels. The decline can occur at any point in a man's life, and it can be induced by anything from illness to injury. However, the most common reason is age. As men age, their testosterone levels gradually decrease, causing low libido levels, decreased muscle mass, density, functionality, and more. These symptoms can be swiftly dealt with using supplements such as natural testosterone boosters.

These boosters not only benefit those with low testosterone levels but also help avid fitness fanatics and bodybuilders elevate their performance for better gains. Some of the most popular T-Boosters on the market are TestoGen and TestoFuel, two supplements made by world-renowned manufacturing giants. Since both these supplements serve the same purpose, we've put them up against each other to see which provides a more comprehensive set of benefits:


TestoGen is a nutritional supplement designed by Muscle Club Limited, a trusted name in the manufacturing industry.

With well over a decade of experience/knowledge in creating exceptional fitness and muscle aids, Muscle Club formed TestoGen using a blend of natural ingredients that have been scientifically proven to elevate testosterone levels without negatively affecting mental or physical body processes. 

The non-invasive formula is both effective and safe, with a distinct feature that stops the transformation of testosterone into estrogen. It does this by using clinical doses of herbal extracts that work seamlessly with hormone production. 

The carefully selected doses ensure that the supplement is effective and safe, lowering side effect profiles and allowing users to achieve positive outcomes without experiencing any setbacks during their fitness or workout plans. The formula is also free of artificial components and synthetic fillers, which further guarantees user compatibility. The supplement naturally stimulates protein production, supporting muscle development, definition, and functionality.

TestoGen has fat-burning properties as well, eliminating excess fat from the body to help users accomplish a more toned physique. In addition, it increases strength, endurance, and energy while reducing fatigue. The combination of testo-boosting ingredients also promotes libido levels, reducing mood swings and irritability as well.

Related articles: TestoGen Review

Key Features

Key Features
  • Boost testosterone levels
  • Supports fat reduction and muscle growth
  • Increases strength, energy, and libido levels


TestoFuel is an anabolic support complex specifically created to enhance testosterone production in the body.

The supplement is made by Roar Ambition, a company specializing in creating aids that support the male physique.

They have created over a dozen successful products over the years, the most popular being, Testofuel.

TestoFuel regulates, boosts, and replenishes testo levels by mimicking testosterone production processes associated with the gonads and testes.

This helps users reach optimal testosterone levels while promoting muscle functionality, development, repair, and recovery. The supplement contains a unique selection of ingredients in premeasured doses, supporting its efficacy and safety. According to fitness experts and medical professionals, the right selection of ingredients is a critical element needed for complete testosterone enhancement. The synergistic blend found in TestoFuel naturally elevates testosterone levels without inducing side effects, straining body processes, or compromising other hormone levels. 

The product promotes energy levels, motivation, and focus,  supporting weight loss initiatives while triggering natural fat elimination processes as well. This helps users achieve a toned and sculpted physique with excellent muscle definition. The supplement's potent effects also restore diminished sex drives, allowing users to regain parts of their sex lives that were lost to low testosterone levels. In addition to enhancing sexual desire, the supplement provides users with more control over ejaculation, which extends sexual experiences and decreases the occurrence of premature ejaculation—a common symptom of low T-levels.

The unique TestoFuel formula also affects emotional and mental processes, tackling feelings such as fatigue, irritability, unjustified anxiety, and depression that might occur while users try to achieve peak physical form. The direct non-invasive approach of the supplement helps users reach their fitness goals in shorter time frames.

Key Features

Key Features
  • Increases complete testosterone production
  • Facilitates optimal mental and physical functioning
  • Supports cutting and muscle preservation/development

Common Ingredients

TestoGen and TestoFuel produce similar effects due to their expert constructed ingredient lists. They use a non-proprietary blend of natural agents and herbal extracts from the most reliable sources, contributing largely to their premium status, safety, efficacy, and reliability. Below we take a more comprehensive look at the components these supplements share in common:




2352 mg

2300 mg

40 mg

100 mg

40 mg

100 mg

Vitamin B6

20 mg

5 mg

Vitamin D

50 mcg

5000 IU

200 mg

200 mg


10 mg

10 mg

After examining the dosing/volume of ingredients in each pill, it's clear that TestoFuel is the more potent option overall. Roar Ambition took the 'bigger is better' approach with this supplement as they aim to flood the body with testo-boosting agents, and we find this to be very effective.

The brand's up-to-date formula is backed by the latest studies and supports the body through testo elevation, which in our opinion is a feature on its own. In essence, the supplement has a large dose of key ingredients to ensure users get a full serving of each component, ensuring 100% efficacy.

Unique ingredients

TestoGen and TestoFuel contain unique ingredients that allow them to produce distinct benefits that positively affect different facets of the fitness/bodybuilding journey and users' overall health. Below is a detailed look at the ingredients that facilitate and support the unique effects of these two testo boosting supplements:


  • Bioprene: This agent is a patented extract of piperine (black pepper) that supports the absorption of other ingredients in the TestoGen formula. It also stabilizes blood pressure/sugar levels, tackles cancer cell growth, decreases inflammation, and boosts brain function.
  • Boron: This trace mineral, also known as a micronutrient, plays a significant role in nutrient metabolism. The agent also decreases estrogen levels (estradiol) which helps testosterone have a more permanent stance in the body.
  • Vitamin K1: Vitamin K1  helps bone development and aids the proper absorption of vitamin D.
  • Nettle Leaf extract: This ingredient supports muscles and joint recovery. It also improves libido levels.


  • Vitamin K2: Vitamin K2 activates a protein in the body that helps minerals bind to our bones, so it can efficiently execute its function. This subsequently improves bone density and lowers the risk of bone fractures. The vitamin also increases testosterone production by mimicking hormone-enhancing processes.
  • Oyster Extract: Oyster extract provides the body with ample nutrients while supporting sexual health by enhancing libido levels. The agent supports heart health as well, increasing blood flow to all organs and muscles, further improving sex health, and fully supporting muscle growth/recovery. The extract also contains specific compounds that profoundly affect testosterone production while maintaining healthy dopamine levels.

Although TestoGen contains more unique components than TestoFuel, the higher concentrations in Testofuel definitely facilitate more significant effects and results.

In our opinion, the unique components in the TestoFuel formula also have more scientific backing and are associated with the primary goal of elevating testosterone and promoting muscle growth/recovery/functionality.

Side Effects

Natural testosterone boosters are often perceived to be dangerous or full of side effects due to the bad reputation gained by their synthetic counterparts. However, they do not carry any serious adverse effects that hinder physical or mental functionality. The seamless blending of ingredients that support each other in elevating testosterone means that both TestoGen and TestoFuel carry a low side effect rate. These supplements are also free of synthetic filler, binders, and chemicals, further decreasing the probability of side effects or negative outcomes. 

Although the possibility of experiencing side effects with either of these products is low, it does not mean that side effects are impossible. Short-term side effects can be experienced at the beginning of supplement use as the body becomes familiar with the new agent in the system.

These side effects include nausea and an upset tummy with mild intensity. If other side effects with a more pronounced disposition present themselves, this could signal an allergic reaction that requires professional examination. To avoid the possibility of allergies, users are encouraged to check their current allergies and sensitivities with the ingredient list of their chosen testosterone enhancer.

Prices and Offers

TestoGen and TestoFuel are available for purchase on their official site, which provides users with details about different pricing plans and benefits with bulk purchases.

Below we have a basic overview of the pricing structure that accompanies each product:


120 pills - 30 days


  • Discount on bulk orders
  • Fast and free shipping
  • 100-day money-back guarantee


120 pills - 30 days


  • Discount on bulk orders
  • FREE delivery in the UK and US
  • 30-day money-back guarantee

TestoGen comes in at a slightly more affordable price due to its sourcing agreements, while Testofuel's price is slightly higher by $5.01. The request for a larger spend on TestoFuel can be attributed to the specialized ingredient list that includes premium agents and accompanying benefits.

Pros and Cons



  • Improves libidos, energy, and testosterone levels.
  • It contains natural, scientifically-backed ingredients.
  • Eliminates excess fat from around muscles.
  • Supports muscle definition and growth.
  • Low side effect rate.


  • Optimal results can only be achieved through consistent use.
  • Recommended dose cannot be split for any reason.



  • Naturally increases testosterone levels.
  • Permanently reverses symptoms of low testosterone
  • Improves moods, emotional responses, focus.
  • Enhances muscle functionality, growth, repair, and definition.
  • Reduces fatigue and promotes strength, stamina, libido levels.
  • 100% clean/natural formula that's 3rd party tested and clinically backed.
  • Made in cGMP certified, FDA approved facilities.


  • Supplement use must be paired with a regular training and a controlled diet.
  • Must be taken according to a strict schedule.

Final Verdict

The choice between TestoGen and TestoFuel is a hard one considering that reliable manufacturers created both supplements with scientifically backed components. However, we've used a fine-tooth comb to dissect the properties of each option and found that TestoFuel comes with a slightly more comprehensive set of benefits. This is due to their inclusion of premium ingredients such as oyster extract, which provides users with multiple nutritional benefits, including a testo boost. 

The product has an excellent support system, with each one of its ingredients relying on the next to produce holistic effects that benefit male physiology. We also found that Testofuel has a more pronounced effect on sexual health—restoring low libidos, improving ejaculatory control, allowing users to have a longer, more pleasurable sexual experience.

Additionally, the supplement permanently reverses signs and symptoms of low testosterone. This means that it has quite an impact on mental and physical health, which we think is an excellent feature, especially because the decline of testosterone has such a far-reaching negative effect on every facet of an individual's health.

Editor's Choice: TestoFuel

Overall Rating: 
4.5/5 stars




Feel free to read our affiliate disclosure.

About the author 

Nicholas Khan

I am a certified fitness instructor and I write about supplements and testosterone products. I have been in the industry for over 10 years, and during that time, I have gained a lot of experience with different types of supplements. In my blog, I will discuss which ones work best for boosting testosterone levels and improving overall health.

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