Best Testosterone Booster Supplements | Our Top Picks for 2023 [UPDATED]

best testosterone booster supplement for libido, muscle gain, strength energy and low testosterone

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Welcome to our guide to the very best testosterone booster supplements we recommend right now. Suitable for both younger guys who want to build strength, as well as older guys who’re looking to help their body regenerate its T levels in a safe, natural, and inexpensive way.

Athletes all over the world take supplements to support their T levels naturally. Below you’ll find a list of tried and tested formulas to increase your levels of this critical androgen hormone.

Best testosterone boosters use safe & natural ingredients that have been shown to:

  • Boost muscle growth and protein synthesis
  • Speed up your metabolism (burn unwanted fat)
  • Bring testosterone-to-estrogen ratio in a more youthful range
  • Support energy and sex drive
  • Improve recovery after training
  • Enhance sleep and mood

The 3 supplements below have been among the market-leaders for years. These testosterone boosters are completely clear of any chemicals or synthetic ingredients. Our criteria includes product safety, optimal ingredient doses, short-term benefits, long-term benefits, company reputation and value, among others.

We really don’t like poop products at Ookles. And trust us when we say there are some seriously poopy products out there. Thankfully, after reviewing over 60 popular testosterone boosters over the years, we’ve narrowed it down to these 3 legitimate contenders.



Hunter Test

  • For Stressed Men 35+ 

  • Body and Mind Formula

  • Clinically Effective Doses

  • Fully Transparent

  • Long-Term Test Support

  • For Younger Guys & Athletes

  • 100% Natural

  • Zinc and Oyster Extract

  • Updated Every 6-12 Months

  • Excellent Reviews

  • For Busy, Affluent Customers

  • Anti-Estrogen Effects

  • Increase Mood & Libido

  • Large Ingredient Doses

  • Biggest Formula Available

What is a Testosterone Booster Supplement?

A testosterone booster is a supplement designed to support your body’s hormonal health. It’s filled with nutrients – vitamins, minerals, herbs, antioxidants – specifically chosen to encourage your body to produce more T.

Testosterone-boosting ingredients include zinc, vitamin D, boron, D-Aspartic Acid, Korean Ginseng, and so on. They all boast a strong clinical pedigree in terms of being shown to contribute to more youthful hormone levels – less estrogen (female sex hormone), more testosterone.

Each testosterone supplement you find will be unique. Ingredient numbers and doses can vary a lot. Some manufacturers prefer adding numerous ingredients to expand their formula, while others like to take a more streamlined approach to their supplements.

Ultimately, the best testosterone formula is one with substantial clinical evidence behind it. Showing that it’s safe, reliable and effective.

What T boosters are not is testosterone replacement. Don’t confuse synthetic testosterone or anabolic steroids with testosterone booster supplements. Testosterone boosters are legal and can be safely used by anyone – without needing a prescription.

After you stop using a T booster, your hormones return back to where they were before you started taking the supplement. You don’t get dependant on it. By contrast, TRT and steroids completely stop your natural testosterone production, and may cause severe dependancy in the long-run.

Why Take a Testosterone Booster?

Why should you consider using a T booster? Because testosterone is arguably the most vital hormone in your body. Your strength, vitality, energy levels, confidence, and mood are all closely linked to testosterone. Although you may not “feel it,” testosterone also influences important health parameters like heart health, blood sugar, and others. Keeping a healthy balance between your testosterone and estrogen is paramount for a healthy life.

The issue is that factors such as stress, age, and lifestyle could be hurting your testosterone levels. When your T is affected, so is your physical and mental health.

Nutrition is another factor in keeping your test levels high. Your diet affects the link between testosterone and other hormones in your body.

T boosters work by supplying your body with nutrients that are shown to encourage thriving testosterone levels. Some nutrients specifically improve your T production, while others work to block interfering hormones like cortisol and estrogen from bringing your T down.

Ultimately, taking a testosterone booster can bulletproof your mental and physical well-being – improving all aspects of your life in the process.

Best Testosterone Boosting Ingredients

Although most men experience some degree of testosterone decline as they get older, you’ll be glad to know that age itself is not the problem. It’s your lifestyle choices that are slowly catching up with you. [study1]

This is good news because it means you have control over reversing the decline. And you can most certainly achieve more youthful health.

Regardless of if you are in your 20s, 30s, or 60s, you can take steps to become a better version of yourself – and that’s where testosterone-boosting ingredients come into play.

Not all nutrients in T boosters are the same. The sad reality is that many supplement companies sell empty promises. They give you false hope in order to make a quick buck. You try the supplement for several weeks and nothing happens – you’re left disappointed having wasted your money.

But some of them are of higher quality and will help to improve your low hormone levels. While testosterone boosters are not a miracle pill, and you shouldn’t expect massive improvements from them alone, they can help to get your hormones back on track when combined with a healthy lifestyle.

Some of the best ingredients to look for in a testosterone booster include:

  1. Vitamin D3 – a secosteroid hormone that your body makes from sunlight. A German research paper found that 3,332IU of D3 per day for one year led to significant improvements in T levels in 54 overweight men. [study2] Doses up to 8,000IU per day have been shown to be perfectly safe.
  2. Zinc – an essential mineral that influences hormones, sleep, and mood among others. Over 2 billion people may be deficient according to studies. Zinc supplementation also helps to prevent dips in testosterone levels, along with boosting your libido.
  3. Ashwagandha – an adaptogenic herb that works to reduce the stress hormone cortisol, giving your testosterone more “space” to grow. [study3] In addition, Ashwagandha has been shown to improve sleep, boost physical stamina, and even improve cognitive well-being.
  4. Boron – this is a dietary mineral found in raisins, brazil nuts, and apricots. It helps to strengthen your bones, reduces arthritis pain, and increases free testosterone levels by up to 14.7%, according to studies. [study4]
  5. Indole-3-Carbinol – or simply I3C, is found in vegetables such as broccoli and cauliflower. This compound, which breaks down into smaller compounds in your body after you ingest it through food, helps to block the process of conversion of your testosterone into the female sex hormone estrogen. By doing so, I3C helps to maintain high levels of T naturally in your body.

Our Ranking Criteria

All three supplements on our list have been extensively researched.

We don’t trial these supplements ourselves; instead, we compare their ingredients to the current scientific literature to see if they are effective, safe, and correctly dosed. This gives us an accurate picture of how a supplement should work for you.

We really go in depth in our individual reviews on this website, but to sum up what we’re looking for:

  • The formula – Not just the ingredients, but also the doses.
  • Price – Not just the bare number but also value for money that the supplement offers.
  • Testimonials – It needs to have positive feedback from other customers
  • Trust – You’ll be using these products daily! We need to make sure they’re completely risk-free and produced by a reputable company.
  • The Manufacturer – And the brand authority
  • Where to Buy – We’ll include links to these products’ websites for you to learn more about them, and buy if you’re interested in trying them. We are not sponsored by any company and we independently choose who we are affiliated with. If you buy through any of the affiliate links below, we may get a commission, which helps us run the website.

The 3 Best Testosterone Boosters

The following testosterone boosters are our pick of the very impressive bunch on the market right now.

#1 Centrapeak – Highest Rated Overall

Centrapeak is not just a testosterone booster, it’s a male health booster. It’s specifically designed for men in the 30+ category with declining test levels and low mood. Modern men who suffer from stress and could use a boost in every area.

Centrapeak came out in 2019 but is already redefining what a true testosterone booster should be. It uses the pinnacle of testosterone-boosting ingredients while also making space for cognitive enhancers. The formula has since been updated for 2020 to augment its mental benefits.

Increased performance and 24-hour benefits.

It’s delivered in some seriously sleek-looking packaging, too.

Centrapeak’s Effects:

  • Helps recharge free and total testosterone levels
  • Reduces stress hormones such as cortisol
  • Inhibits estrogen from raising too high
  • Optimizes cognitive function for better focus and a sense of well-being
  • Boosts libido
  • Supports muscle building and fat loss

Centrapeak has a very comprehensive formula. Each of its ingredients has a strong clinical pedigree in elevating testosterone levels, improving energy and reducing stress. If any of this rings some bells then you should look into it. We rate it as an excellent value for money overall.

centrapeak number one overall testosterone booster


Centrapeak uses some of the best testosterone-boosting ingredients on the market right now, including:

  • Vitamin D (3300IU)
  • Zinc (20mg)
  • Indole-3-Carbinol (200mg)
  • Boron (10mg)
  • Ashwagandha (500mg)

Vitamin D in Centrapeak helps with direct testosterone synthesis. Zinc prevents testosterone levels from dropping due to stress, while Indole-3 Carbinol blocks aromatase from converting testosterone to estrogen.

Rhodiola Rosea is added to bolster the mental benefits of Centrapeak – this adaptogenic herb boosts not just physical energy and vigor but also physiological resilience to stress.

Learn more about the ingredients in Centrapeak:

What do Others Say?

One thing that cements Centrapeak as the pack leader is how well it’s received by customers. You’ll find numerous positive reviews on this product online. For us, this is equally as important as its innovative formula.

The Good

  • Cutting-edge formula with well-researched ingredients
  • Effective doses
  • cGMP produced in the UK and USA
  • Free shipping on any order + available to buy worldwide
  • 100% natural, cleanest quality
  • Fully transparent formula, there are no proprietary blends

The Bad

  • Premium price range
  • The US and Canada version not for those with extreme soy allergies
  • You can only buy it direct on the official website

The people at Centrapeak have contacted us to offer our readers an additional 20% off Centrapeak products, with a unique discount code only available to Ookles’ readers. To claim your additional 20% discount, apply discount code “OOKLES20” when ordering from

Centrapeak is Available on the Official Website


#1 for Athletes and #2 Overall: TestoFuel

Uses high-quality, natural ingredients and is produced by a respected U.K. supplement company, Roar Ambition.

TestoFuel New Bottle

Testofuel has been a market-leading product for younger guys and athletes for years. It’s effective at supporting muscle growth.

You can expect not only great results from TestoFuel but also fast delivery and an extra free bottle if buying in bulk. You also get a free nutrition and workout guide with the 3-month package.

Our TestoFuel Bottle

Potential effects that you may experience after using TestoFuel for 30 days:

  • Increased free T levels
  • Increased muscle growth and performance (you may notice a bump in your PR’s in the gym)
  • Improved confidence
  • Faster recovery from training
  • Deeper sleep
  • Higher energy and sexual performance

TestoFuel’s Official Website:


Testofuel has been a market leader for many years, and it’s easy to see why. You’ll see all kinds of products and proprietary blends on the internet claiming to be ‘proven by science,’ but oftentimes, these studies are weak and performed on rats.

TestoFuel also makes serious claims, but it backs them up with some pretty solid evidence. We still recommend doing your own research on the studies about ingredients that TestoFuel uses, but here are some of our favorite ingredients in TestoFuel for boosting muscle growth and masculine performance:

  • Oyster extract (100mg)
  • Magnesium Aspartate (200mg)
  • Vitamin D (4000IU)
  • D-Aspartic Acid (2300mg)
  • Asian Panax Ginseng (100mg)
Our TestoFuel Bottle from the back

TestoFuel uses Oyster extract as a convenient way of getting the nutritional goodness of oysters, including a naturally high amount of zinc that is essential for your testosterone production. Magnesium Aspartate is a highly bioavailable form of magnesium that helps increase free testosterone levels in your body. D-Aspartic Acid is added for its famous ability to potentially boost testosterone levels by over 30% in less than a month, although the effects wear off over time.

Learn more about TestoFuel’s ingredients here:

While TestoFuel is not a cheap product, you get great value out of its ingredients and highly-rated customer service. It can be a little frustrating trying to remember to take 4 capsules each day, but you should quickly get into the swing of it. The libido and performance increase are among the first benefits you should notice, as well as a reduction in belly fat if you stick to a healthy diet.

What do Others Say?

Online TestoFuel reviews show it’s a favorite among pro athletes and average Joes alike, thanks to its high-quality formula. Testimonials range from gym newbies all the way to former Mr. Olympia winner Robby Robinson, showing that this test booster can work for just about anyone.


  • Best muscle building supplement
  • 90- day risk-free money back guarantee
  • Large dose of vitamin D and other key testosterone boosters
  • Great reviews from all across the world
  • Clean and cGMP manufactured


  • Pricey
  • You can only buy it online from the manufacturer
  • Not suitable for vegetarians

TestoFuel is Available on the Official Website


#3 Test by Hunter Evolve – Best for Busy Men

“A testosterone booster that aims to give you more. More servings, more ingredients, more value.”

Hunter Test is another product from Roar Ambition, but a very different one from TestoFuel. It is created for a specific audience – affluent, high-achieving men looking to feel and look their best. It contains the largest doses of key ingredients of any testosterone booster we’ve seen.

It’s for men who want a maximum impact immediately and want the very finest quality that money can buy.

Hunter Test Testosterone Booster

When it comes to Hunter Test, bigger really is better. If you want a premium supplement that doesn’t compromise in any department, this one could be for you.

Hunter Test works to give you:

  • Improved motivation, productivity, and mental performance
  • Reduce estrogen and cortisol with Ashwagandha & Indole-3-Carbinol
  • Raise libido with zinc & ginseng
  • Support immunity with vitamin D3

Hunter Test’s Official Website:


Hunter Test contains 5,000IU of vitamin D3 – a secosteroid hormone that plays a crucial role in your body’s ability to make testosterone. One study found that vitamin D can boost the anabolic hormone by an average of 20% in 12 months.

Vitamin K2 in Hunter Test works to reduce calcium build-up in your bloodstream to allow more D3 to flow through your body. Magnesium boosts both free and total testosterone levels, and works in both active and inactive individuals. Zinc is added to the formula to keep your testosterone ‘locked’ at a healthy level.

Hunter Test Ingredients

D-Aspartic Acid, as we’ve seen with other products, can increase your testosterone by up to 100%. Asian Ginseng, on the other hand, augments Hunter Test’s ability to enhance your libido & mood, as well as improve sleep quality and healing.

Ashwagandha is an adaptogenic herb that’s shown to enhance everything from muscle strength to stress resilience. Meanwhile, boron and Indole-3-Carbinol work in synergy to suppress the female sex hormone estrogen – helping you to maintain a more youthful testosterone balance.

What do Others Say?

Generally, the reviews are positive. Most users are thrilled with how safe and effective this testosterone booster is.

This product has all the ingredients you’d expect from a top-notch testosterone booster. Its formula is some of the best-tested and highest-quality we’ve encountered in any male health supplement. In addition, it’s free of synthetics and fillers. Reading its glowing reviews online, this product seems to deliver on every level for most men.

We recommend Hunter Test if you want a “creme de la creme” testosterone booster with high-dose ingredients for maximum effectiveness. It’s not cheap, but the value it offers is arguably the best on this list.


  • Developed with scientifically-backed ingredients
  • High-dosed natural formula
  • Bioactive ingredients that are easy to digest and absorb
  • Promotes testosterone and other aspects of male health
  • 180 capsules per bottle


  • Premium price
  • Only buyable directly from the manufacturer

Hunter Test is Available on the Official Website


Conclusion to Best Testosterone Booster Supplements

That wraps up our Best Testosterone Booster Supplements guide. As you can see, supplements are a great way to support your goals, but as we like to remind our readers, there’s no ‘magic pill’. You still have to create the right environment to maximize the benefits of testosterone boosters.

A diet loaded with lean protein and 5-7 cups of greens per day, 7-9 hours of sleep per night, and going to the gym and exercising if you can. These are the foundations that you need to have in place before thinking about taking any supplement.

Then when you add a quality test booster like the ones from above, you’ll see the biggest improvement in your masculinity and performance.

Centrapeak is our pick of the bunch. It’s particularly effective for men in the 35+ age bracket who want to improve mood, reduce stress, and be back at their peak physically.

TestoFuel is our choice specifically for bodybuilders and those whose primary goal is faster muscle gains.

As for Hunter Test, it’s the most advanced product hit the market. It’s got the largest formula currently available, and is extremely safe and effective. For our top testosterone booster of this year, follow the links below:

Click Here to Visit Centrapeak’s Official Website



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6 thoughts on “Best Testosterone Booster Supplements | Our Top Picks for 2023 [UPDATED]”

  1. Avatar

    I’m 18 and I feel like Centrpeak test booster would be the best thing for me, but my question is, will it have an effect on me because of how young I am

    1. Ivan

      Hi Kyle,

      This is a common question we get about Centrapeak. We’ve found it to work particularly well for people under stress and pressure, and those who want to give themselves a mental and physical boost. So, yes, it works regardless if you’re 18 or older.

  2. Avatar

    Why don’t all products come with an estrogen inhibitor? I feel like if I increase my T I’ll also need to decrease my E. Is there a product to take alongside the T boosters that don’t have an E inhibitor already in it?

    1. Ivan

      Hey Owen,

      All 3 products featured in this guide contain natural estrogen inhibitors. Centrapeak, in particular, contains vitamin B6, Luteolin & Indole-3-Carbinol. These compounds have been shown in studies to lower estrogen levels and inhibit the conversion of testosterone to estrogen, reducing the likelihood of “man boobs,” belly weight gain, and other symptoms of high estrogen.

      If you’re a younger guy, then TestoFuel is an even better option since it contains ingredients that support your natural T production while also diminishing the effects of estrogen with a clinical dose of zinc and vitamin B6.

      The third product on the list, Testo Lab Pro, is just as effective when it comes to managing your estrogen levels – whether you’re a young athlete or man in his 50s looking to have a more balanced testosterone-to-estrogen ratio.

      Hope that helps.

  3. Avatar

    Just a quick question, but as an 18 year old, soon to turn 19, TestoLab would seem to be the best for directly increasing testosterone due to the ingredients and focus it has in that particular area. Would that assuming be correct, or is one of the other two better in increasing testosterone levels.

    1. Ivan


      At this age it’s unlikely you’d need a T booster anyways, just a solid lifestyle and your T levels should be soaring. That said, TestoFuel and Testo Lab Pro are both great options for younger guys. Both help to nudge your body to make optimal levels of T. If you’re looking to pack on as much muscle as possible naturally, then TestoFuel has a slight edge because its ingredients are more focused on building strength and raw power. Testo Lab Pro is better for libido & performance in our experience – and Centrapeak is best at fighting cortisol and estrogen and keeping your T levels high as you get older.

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