Top 5 Best Testosterone Boosters

[UPDATED JAN 2021] Increased athletic performance, enhanced muscle development and achieving a sense of well being, all come as a result of boosting your testosterone levels. 

Athletes all over the world rely on supplements to elevate testosterone levels. In this list are the best, safest and most effective formulas to jack up your levels of this crucial anabolic hormone.

Natural testosterone booster supplements have been proven to:

  • Increase muscle mass 
  • Boost energy levels and recovery time
  • Speed up your metabolic rate (burn fat)
  • Improve sleep
  • Crank up Libido

Our supplements have been road tested for extended periods and are completely clear of any risky chemical formulas. Buy in confidence and within 30 days you’ll start to feel the surge of test flowing through you.

We don’t like SHIT products at Supplement Devil. And believe us when we say that there are some SERIOUSLY SHIT products out there.

Thankfully, this list is 5 of the best. See you in 30 days when your T levels levels will have increased and your life, power, strength and real, raw manliness increased alongside them.

2021’s overall best rated testosterone booster:

1st. Centrapeak – Best Overall

Incredible performance and 24 hour benefits. 

Centrapeak Top 5

Centrapeak has redefined what a testosterone booster should be. Its formula uses the absolute pinnacle of natural test boosters whilst also providing a huge boost to cognition and overall mental well being.

Released in 2019 Centrapeak is a freshly developed formula, delivered in some seriously slick looking packaging.

Centrapeaks Effects: 

  • Renewed Energy and Vitality
  • More Muscle, Less Fat
  • Reduce Stress (Cortisol) and Feel Better
  • Boosted Libido

Centrapeak has a very advanced formula and each of it’s ingredients are extremely well researched and yet rarely found in testosterone boosters.

This is a supplement for anyone who wants to take all the bullshit out of testosterone boosters and focus on real ingredients that simply work.

The effects are designed to impact you 24 hours a day.

The Good: 

  • Proven researched backed ingredients and an up to date formula
  • Amazing cognitive effects
  • Improvements to gym performance
  • Reduction in calorie consumption
  • Manufactured in cGMP Approved Facilities
  • Quick Shipping

The Bad

  • Premium Pricing
  • 3 capsules per day can be annoying
  • No free workout guide
  • Can only be bought direct –


2. Military Muscle – Best for Gym and Athletes – Vegan Friendly

Military Muscle Test BoosterMilitary Muscle was born with the soldier in mind. Developed to enhance the body’s capabilities under high loads and physical stresses. Created by a serving soldier and competitive athlete.

It is these key points which place this natural testosterone booster so highly. Not only is Military Muscle a great selection of proven natural ingredients, it has been proven in service.

If you are wanting to enhance your physical performance, Military Muscle has the correct ingredients, doses and the wealth of practical research.

It doesn’t matter if you hit the gym, ski, run, cycle or shoot. If you want to stimulate more testosterone, reduce inflammation, enable better sleep and increase strength Military Muscle has been developed for you.

Military Muscle offers free global tracked and signed for shipping on every order. This meant in a few days we received a huge bottle of 180 capsules primed to deliver big gains.

What it can do:

Military Muscle has been carefully formulated to offer a range of useful benefits for those looking to smash their goals.

Reported Effects:

  • Stimulate testosterone
  • Reduce inflammation
  • Increase muscle mass and strength
  • Lower prolactin and estrogen
  • Boost libido
  • Improve fertility
  • Enhance muscle recovery – hit the gym again, sooner
  • Reduce cortisol
  • Improve overall body composition
  • Improve sleep

These are some big benefits for a supplement.

However, we have never seen a product that has such a massive formula developed to enhance physical performance through multiple pathways.

This testosterone booster is available to anyone who wants to take their training to the max.

“Military grade fitness, guaranteed.” – Military Muscle


  • Including 11 natural and safe ingredients
  • Big and relevant evidence based doses
  • A massive 180 capsules each month
  • Free global shipping
  • Multi-buy offers
  • High quality manufacturing in FDA and BRC global standards facilities
  • No proprietary blends
  • Free of any WADA or Dept of Defense banned substances
  • 90 day money back guarantee


  • Gelatin capsule isn’t suitable for those with certain dietry requirements
  • Not available in Japan or Brazil
  • Only available direct on
  • High dose might be annoying for some

Only available direct:

3. TestoFuel

Natural and very effective each time we’ve used it. Also allowed us to pass all competition drug testing. 

Top 5 Testosterone Boosters

About TestoFuel

TestoFuel is an excellent testosterone booster that is designed for strengthening athletes and body builders. It is effective in enhancing the buildup of muscles.

We didn’t just get good results though, but also a very quick delivery and extra bottle free with our trial order. The order also came with a nutrition and workout guide. We didn’t use this but it seemed good.

Effects we got from TestoFuel Supplementation after 30 days:

  • Increased levels of free testosterone
  • More muscle mass and better performance (1RM went up)
  • Confidence increased
  • Best rest ever, less DOMS
  • Felt 18 years old again
4 Months TestoFuel
4 Months TestoFuel

Our Experience on TestoFuel:

TestoFuel is the last word on testosterone boosters in the current market. You’ll see all kinds of blends and products all over the internet claiming to be ‘scientifically proven’, but in reality, these studies are thin and often performed on rats.

Our order from TestoFuel was pricey, but it was delivered quickly and it was very easy to order.

1 week on TestoFuel led to a revitalized feeling of energy and we slept a whole lot better. We had frustrations remembering to dose 4 capsules daily at first, but soon got into the swing of it.

By week 2 we felt liked we’d been missing out by trying other testosterone boosters. Our gym performance felt better, bedroom performance was even better than that. And we were horny as hell.

At the end of the first month we’d seen good muscle gains and a surprising loss of belly fat. Recovery and sleep had also improved immeasurably.

We cannot recommend this product enough, it’s still holding it’s crown as THE testosterone booster of 2018.

TestoFuel Guarantee
TestoFuel Guarantee

The good:

    • Proven muscle building supplement
    • Scientifically backed and cGMP manufactured
    • 90 day money back guarantee – Worth the punt 
    • Contains a large dose of Vitamin D and D-Aspartic Acid
    • Offers a larger 200 milligram dose
    • Great worldwide customer reviews
  • All ingredients are researched and proven, read the studies yourself!

The bad:

  • Unsuitable for vegetarians or vegans
  • Quite expensive
  • Can only be bought on the official website

Get the best 


4. Prime Male

Top 5 Testosterone Boosters

In the second spot of our top 5 testosterone boosters list is Prime Male. This supplement is specifically formulated for men above the age of thirty. It is designed to reverse the effects of aging that cause the decline of testosterone levels that all men experience.

On average, men lose 1% of their testosterone levels every year beginning from the late twenties. Although that might not seem like much now, the numbers pile up- and before you know it- you won’t be gaining or losing as much as you used to. 

For a lot of men, it’s their own personal set of hell. To lost the ability to do something that they were able to do so easily before.

The results of using this supplement include increased strength and muscle, a boost in sex performance and drive, reduced body fat, improved mood, more energy and other health benefits linked with the increased production of testosterone.

The other benefit of Prime Male is higher bioavailability, meaning that the body readily absorbs the nutrients in this supplement. This is particularly beneficial because the ability to absorb nutrients in supplements and food deteriorates naturally with age.

If you are thirty years of age or older and you want to regain some of the energy, athletic performance and strength you had when you were younger, we recommend taking Prime Male.

The Good:

    • Specifically designed for men aged thirty and above
    • Higher bioavailability
    • Premium quality
    • Contains a high amount of natural ingredients, which are proven to be effective
    • No fillers
  • Excellent customer reviews

The bad:

    • Unsuitable for vegans or vegetarians
  • You can only buy it online


4. Alpha Male Biotest

Top 5 Testosterone Boosters

Alpha Male Biotest is a testosterone enhancing supplement that can boost your lean muscle growth. It contains 4 different ingredients that drive the level of natural testosterone upwards.

This will allow you to see a faster rate of muscle growth and strength. Alpha Male Biotest stimulates the testes to increase the production of testosterone naturally.

As this occurs, this supplement helps decrease the levels of estrogen and progesterone in the body. These are the two main female sex hormones that counteract the effect of testosterone.  

The dual action approach of this supplement helps improve muscle building from every angle. Alpha Male Biotest is suitable for men who want to gain muscle tissue faster.

It is also ideal for men who are not able to build muscle quickly because of possessing naturally lower levels of testosterone and higher levels of progesterone or estrogen.

The good:

    • Helps to raise the natural testosterone response
    • Enhances muscle repair after a workout
    • Helps increase lean muscle growth
    • Stops the release of estrogen and progesterone
    • Helps to reduce the release of cortisol, minimizing fat accumulation and muscle breakdown
  • Can assist with increasing sexual function and libido

The bad:

    • Should not be used by females, including those who want to build more muscle mass
    • Does not increase energy levels before the workout session
  • The full effects become evident after a period of up to four weeks


5. Nugenix

Top 5 Testosterone Boosters

Nugenix is the other top testosterone booster available. It is designed to stimulate the body to increase the production of testosterone naturally.  

It is mainly geared towards older men who experience symptoms of muscle loss, fatigue, additional weight around their midsection and low sex drive among other issues.

This product can directly reverse such symptoms. Nugenix consists of two categories of ingredients; the ones that boost testosterone production and the ones that boost sex drive.

However, in order to enjoy these benefits, you should use the product according to the usage instructions that the manufacturer provides.

You should also bear in mind that the results differ from one person to another depending on factors like age, health status and diet. Life is tricky business and taking the jump can lead to either a euphoric heaven or a chaotic hell, but if you don’t jump- then you’ll get nowhere. 

The good:

    • Contains natural ingredients
    • Helps increase testosterone
    • Helps enhance libido and sex drive
    • Many of its ingredients are proven to work
    • Contains ingredients that offer extra health benefits
  • Free samples are available for consumers who want to test the product first

The bad:

    • It is costlier than other similar products
    • It takes time before users notice changes
    • It can cause unappealing side effects, especially stomach upsets
  • Is only available in the United States and Canada


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