Best Testosterone Boosters For Muscle Growth & Vitality (Updated 2021)

natural test booster testosterone boosters masculine vitality energy masculine health muscle growth muscle massA natural test booster can work to impact muscle growth while also promoting masculine vitality, health, and virility.

Many people who train hard take a natural testosterone booster for a subtle boost and others take them as a part of a daily health and supplement routine to boost masculine vitality, muscle growth, masculine health, and masculine virility. There are hundreds of companies out there making test booster pills, and it can be hard to tell them apart. We tried all the leading products from the top brands and determined that these are the best. The overall best Test Booster pill is Centrapeak for its clean formula and test boosting effectiveness, making this one of the best testosterone supplements.

The best testosterone boosters this year promote testosterone and athletic performance to produce a muscle growth. Since testosterone boosters and natural booster pills are great aids for increasing performance in athletes of all levels, those with low testosterone should consider taking these supplements. It should be clear that natural testosterone boosters are not steroids but performance enhancing aids used for those with low testosterone and can prove worthwhile so we put together a list of the best testosterone booster supplements to improve normal levels and mood changes to see results to better your life and masculine health.

Testosterone is a vital sex hormone to help aid in muscle growth and development, hair growth, and other important daily functions for both men and women. Men produce way more of it and when levels are decreased, it can lead to poor sex drive and a host of other unwanted side effects like decreased masculine energy. This is where solid natural testosterone boosters can come to your aid to boost testosterone levels and your overall masculine health, especially for those men over 40.

Check out our list of the Best Testosterone Boosters on the market today, which are good enough to give you a slight edge when it comes to muscle growth, muscle mass, and masculine vitality. Each natural testosterone booster has unique features but will work to boost testosterone levels to really work to enhance performance results and masculine virility.

Best Testosterone Boosters For 2021

Best Testosterone Booster For Men

Finding the best all-around testosterone for bodybuilding booster can be challenging but it is possible. With the right ingredients and great formula, all of those T boosting needs are possible which the right natural testosterone boosters.


Number Of Ingredients 11
Number of Servings 30
Serving Size 3 Capsules
Highest Dosed Ingredient Indole-3-Carbinol and Ashwagandha (200mg)
Best Way To Take Take 1 capsule three times a day with food.

Centrapeak is a great natural testosterone booster to increase masculine vitality for improved physical condition and mental strength. Designed to help testosterone and cognitive wellbeing, this product will increase T levels to boost masculine energy levels, build strength, enhance libido, and increase your confidence. With researched backed and clinically dosed natural ingredients, Centrapeak offers a unique and effective formula. Vitamin D3 and zinc work to increase levels of testosterone and improve mental wellbeing. Vitamin K2 works to support natural testosterone production while Indole-3-carbinol reduces estrogen production. With 14 total ingredients, Centrapeak works to help you achieve your peak as the best testosterone booster for a blended formula to boost your testosterone levels naturally for optimal masculine health and masculine virility.

Centrapeak is a natural test booster designed to improve physical and mental condition. With researched backed and clinically effective doses, this product is perfect for any T boosting needs.


  • Top-quality innovative formula with great health advantages allows you to see the best results possible out of this natural testosterone booster.
  • Vegan-friendly for those following a strict vegan diet but who want to use test boosters.
  • No proprietary blends and honest label for the utmost transparency so you know exactly what you’re putting in your body from natural test boosters.
  • Manufactured in a cGMP approved facility to ensure a clean process that you can trust from the best testosterone booster.
  • Free worldwide shipping on all orders to save you that added expense of shipping when it comes to natural test boosters.


  • The price is high due to premium ingredients which may not be conducive to your budget compared to other natural testosterone boosters.
  • Only sold directly from the website which limits where you can find this product among other test boosters.
  • The dosage of magnesium could be higher which is known to improve athletic performance and strength gains from a natural testosterone booster.

Price: $69.00

Check out our individual review for Centrapeak here!

Best All-Natural Testosterone Booster

A natural test booster is what you want for the ingredients are clean and effective. This will ensure the safety and effectiveness of any natural product you use.

Testo Lab Pro

Number Of Ingredients 9
Number of Servings 30
Serving Size 4 NutriCaps
Highest Dosed Ingredient KSM-66 Ashwagandha Extract and D-Aspartic Acid Calcium Chelate (600mg)
Best Way To Take Take 4 NutriCaps daily, ideally 2 in the morning and 2 in the afternoon/evening.

Testo Lab Pro boasts an “ultramodern” upgrade to the testosterone-boosting blend typical of most natural booster pills making this one of the strongest natural test booster options to improve masculine vitality and muscle mass. Testo Lab Pro is allergen-free, gluten-free, non-GMO, and free of all synthetic additives, making this a great choice for those who have allergies or other sensitivities to chemicals. There’s also a healthy dose of zinc, which has been shown to help replenish testosterone that has been depleted through heavy exercise making this a top choice for the best testosterone booster to help your body and get rid of low levels of testosterone for that much desired masculine health and masculine energy.

Testo Lab Pro is an ultramodern test booster making this a strong option. Great for improving masculine vitality and muscle mass, this is a great natural option.


  • Complete formula with top ingredients to support masculine energy, vitality, and lean muscle mass out of one of the top testosterone boosters.
  • The capsules are safe to take long-term so you can reap the benefits of a testosterone booster for a while.
  • Designed for easy absorption to ensure all of these clean testosterone booster ingredients hit your body faster and more effectively.
  • Money-back guarantee in case this product is not what you were looking for out of natural testosterone boosters.


  • You are limited to buying only on their website so it limits where you can purchase this natural testosterone booster from.
  • Some of the ingredients are under-dosed which may limit results or take longer to see those testosterone booster results.

Price: $69.00

Check out our individual review for Testo Lab Pro here!

Best Testosterone Booster For Muscle Growth & Strength

While testosterone boosters should be used for optimizing T levels, it should also work to benefit your muscle growth and strength. This will ensure that desired physique and optimal training and performance out of the best testosterone for bodybuilding.

Transparent Labs StrengthSeries Vitality

Number Of Ingredients 8
Number of Servings 30
Serving Size 2 Capsules
Highest Dosed Ingredient Organic Ashwagandha Extract (600mg)
Best Way To Take Take 2 capsules daily.

Transparent Labs Vitality is an innovative 3-in-1 natural test booster and hormone optimizing supplement that can work wonders for your overall masculine vitality and performance goals. This supplement works to boost testosterone levels while controlling estrogen and cortisol production so those suffering from low testosterone never have to worry about low masculine virility. With a powerful formula packed with amazing ingredients, these natural booster pills set the foundation for lean muscle mass, fat burning, strength, libido, confidence, and overall vitality.

Code GENIRON10 For 10% Off

Transparent Labs Vitality is an innovative 3-in-1 natural test booster and hormone optimizing supplement. A powerful formula matched by amazing ingredients, this is perfect for overall vitality.


  • Innovative 3-in-1 natural ingredients and hormone optimizing supplement to ensure only the best enters your body to work for your benefit out of testosterone boosters.
  • Great for boosting testosterone and controlling estrogen which is exactly what you want out of your natural testosterone boosters.
  • Transparent and honest label so you know exactly what you’re putting in your body.
  • From a reputable company in Transparent Labs who works tirelessly to only produce the best products for their consumers.


  • Premium priced option so it may not be conducive to those on a budget.
  • Only available on their website which limits where you can buy this and potentially save on a deal from natural test boosters.

Price: $49.00

Use promo code GENIRON10 for 10% off! Also, check out our individual review here!

Best Testosterone Booster For Optimal T Levels

Having a supplement that works for optimal T levels is important. Since testosterone is vital for men, you want the best testosterone for bodybuilding supplement working to optimize those levels.

Enhanced Black Ox

Number Of Ingredients 11
Number of Servings 30
Serving Size 8 Capsules
Highest Dosed Ingredient Akarkara Extract (1,500mg)
Best Way To Take Take 4 capsules twice daily 20-30 minutes before a meal with 8 oz. of water.

Enhanced Black Ox is an incredibly powerful natural test booster designed from a 2-in-1 formula made from 11 scientifically proven ingredients for one of the better boosters on the market to increase masculine health and masculine virility. As a great booster for the production of testosterone and regulation of estrogen to remove metabolites, Black Ox is not just for hardcore users, but natural athletes as well. With a transparent label and 8 capsules per serving size, these natural booster pills are great to enhance power, help with weight management, and optimize hormone levels to boost athletic performance and masculine vitality as a result of taking testosterone making this one of the best testosterone supplements.

Enhanced Black Ox is a powerful natural test booster with a 2-in-1 formula made from 11 proven ingredients. This is great for testosterone production and regulating estrogen.


  • Powerful booster with a great 2-in-1 formula packed with 11 scientifically proven ingredients to give you the best chance at results.
  • Clean and effective natural ingredients so you only put the best into your body.
  • Enhance power, athletic performance, weight loss, libido, and muscle mass to ensure you perform at the highest level.


  • Serving size of 8 capsules is a lot and other testosterone boosters on the market are only one or two.

Price: $64.99

Check out our individual review for Enhanced Black Ox here!

Best Testosterone Booster For Energy & Fat Loss

Along with strength, the power output you put into workouts is important and the best testosterone supplements can help with that. Natural testosterone boosters can work for increasing power and will also optimize strength as much as possible for the best testosterone for bodybuilding results.


Number Of Ingredients 11
Number of Servings 30
Serving Size 4 Capsules
Highest Dosed Ingredient D-Aspartic Acid (2,300mg)
Best Way To Take Take 4 capsules, 20 minutes before breakfast for the best results.

TestoGen Testosterone Triple Action is a natural testosterone supplement designed to help men increase their testosterone levels safely and naturally. This combines eleven proven and effective ingredients essential for maintaining strength, muscle development, virality, and stamina so you get the most out of your overall health and training. With 100% natural and premium ingredients, a 100-day money back guarantee, and worldwide free shipping, this supplement can work wonders for whatever testosterone needs you may have.

TestoGen is a natural testosterone supplement made from safe and natural ingredients proven to boost testosterone levels and aid in muscle growth.


  • Natural testosterone supplement with clean and effective ingredients
  • Great benefits to testosterone support as well as maintaining strength, virality, stamina, and focus
  • Top-rated and easy to use
  • 100-day money back guarantee


  • 4 capsules is a lot for a serving size
  • It is a premium priced option

Price: $59.99

Check out our individual review for Testogen here!

Best Testosterone Booster For Power

Along with building strength and optimizing levels, the best testosterone supplements can also boost energy and aid in fat loss. With the right ingredients, these results are just around the corner for these best testosterone for bodybuilding supplements.

EVL TEST Testosterone Booster

Number Of Ingredients 8
Number of Servings 30
Serving Size 4 Tablets
Highest Dosed Ingredient D-Aspartic Acid (3,120mg)
Best Way To Take Take 4 capsules daily.

EVL TEST contains plenty of vitamins and the essential minerals you need. But for the testosterone-supporting ingredients, you have the potent D-aspartic acid, Tribulus Terrestris, Fenugreek seed extract, and diindolylmethane (DIM). D3 is essential for bone, immune system, and even mental health according to some studies. B6, magnesium, and zinc make up a complex formula for heart, nerve, and immune health which are very effective as a sleep aid. Now, in one study, fenugreek in a 500mg dose showed to have a significant increase in muscle mass, strength, and fat loss, as well as boosting masculine vitality. This was in combination with an eight-week training program and these natural booster pills are an interesting find for those looking for a natural performance boost and increasing testosterone results for better masculine energy.

EVLTEST contains great ingredients essential for testosterone boosting and support. This is perfect for those looking for a natural performance boost.


  • Transparent label and a great combination of minerals and vitamins to give you the best in terms of quality, honesty, and results out of the best testosterone booster.
  • Affordable price to not break the bank and cost you more money.
  • Great added benefits like better sex drive, muscle mass, and masculine energy for optimal performance and a better quality of life.


  • Some side effects have been reported which can hinder growth and cause discomfort.
  • Some of the ingredients actually don’t have many testosterone boosting benefits which is disappointing that those are included.
  • Tablet size and lack of a refund may deter some consumers so that is something to consider with this product and other test boosters.

Price: $29.99

Check out our individual review for EVL Test here!

natural test booster testosterone boosters masculine vitality energy masculine health muscle growth muscle mass

Benefits Of Testosterone Boosters

The benefits of these best testosterone for bodybuilding boosters should not be overlooked, especially in men over 40, for what they can do for your gains to muscle growth and muscle mass, masculine vitality, health, sex drive, and muscle development.

  • Heart and blood health: Helps with red blood cell count in bone marrow with natural ingredients to enhance masculine virility.
  • Body composition: Increases muscle mass while decreasing fat mass and working to burn fat so that desired muscle growth and muscle development shows through (1).
  • Bone density: Strengthens bones to boost athletic performance, masculine health, help with muscle development, and increase masculine vitality.
  • Sex drive: Increases libido and overall sexual function for increased sex drive and libido, thus boosting overall masculine vitality (2).
  • Cognitive function: By increasing oxygen around your body and brain, you work to boost energy and masculine vitality.

natural test booster testosterone boosters masculine vitality energy masculine health muscle growth muscle mass

Key Ingredients In A Test Booster

Here are some key ingredients to look for when determining the right testosterone boosters for you. Natural ingredients are key in creating an effective natural test booster and natural booster pills to increase athletic performance, muscle growth, sex drive, and masculine vitality

D-Aspartic Acid: Contains two amino acids that work to release hormones in the brain to aid in testosterone production which work to increase sex drive and libido and overall masculine virility (3).

Fenugreek: Rich in vitamins and minerals that work to lower bad cholesterol, increase libido, and boost performance for better masculine vitality and masculine energy.

Vitamin D3: Considered to be a bioidentical hormone for testosterone that can assist in raising T hormone levels, masculine virility, muscle growth, and masculine vitality (4).

L-Arginine: Widens blood vessels for increased blood flow which allows nutrients to hit your body faster and optimize masculine health (5).

natural test booster testosterone boosters masculine vitality energy masculine health muscle growth muscle mass

How We Choose The Best Test Booster

Finding the right testosterone boosters for you is important and shouldn’t be taken lightly. You deserve to have the highest quality of booster in your supplementation routine and this list will help with that. We look to companies that really pride themselves on transparency and knowing exactly what to put in their products at the right doses. The natural ingredients above should be included in your supplement, but they should also be dosed accurately. Effectiveness is key because with a supplement that is working to boost your training and performance, as well as your overall health and masculine energy, and you deserve the best, especially for men over 40. Price will always be a challenge for the top brands are going to be more expensive, but we’ve worked to give you the most affordable options while still being a top tier product.

natural test booster testosterone boosters masculine vitality energy masculine health muscle growth muscle mass

FAQ Section

What is the best testosterone booster?

Centrapeak. This testosterone booster is one to increase vitality and improve physical performance and mental strength through an increase in testosterone. With a great formula of clinically dosed ingredients, you get an honest and transparent product from Centrapeak to help your lifestyle changes and boost masculine energy.

How does a testosterone booster work?

Testosterone is an important sex hormone responsible for bodily functions such as muscle growth, hair growth, muscle development, as well as others. What these best testosterone supplements can do are increase testosterone slightly with proven, natural ingredients to give your production a boost. Low T levels happen for a number of reasons and a quality booster is really something great to have to increase testosterone levels and improve masculine virility.

How do I know if I should use a testosterone booster?

Checking with your doctor is key and having your testosterone levels checked is also something worth looking into, especially for those men over 40. For teenagers, unless at the direction of a doctor, this is not necessary because you have enough in your body as is. For older men, you may start getting into booster territory, for as we age, our levels can decline. Always consult a doctor for expert medical advice before using though in case of side effects, even with natural ingredients.

Wrap Up

These testosterone boosters are about as good as it gets for their intended purpose and they come from reputable companies who practice safe production with quality control and natural ingredients. Now, these products won’t make you huge or super strong but if you’re someone who needs every little advantage possible, a good quality test booster is worth a try and can provide smaller benefits in terms of muscle growth, performance, and masculine energy levels. But chances are someone 30 or over will benefit most seeing as testosterone begins to decline after this age and people who have really low test won’t benefit much from them either, which is where looking into natural ways may be more beneficial overall. Supplements like these natural booster pills are a bonus to a healthy lifestyle and fitness routine so treat them as such.

Generation Iron may receive commissions on purchases made through our links. See our disclosure page for more information.

Let us know what you think in the comments below. Also, be sure to follow Generation Iron on Facebook, Twitter, and Instagram. 


  1. Corona, G.; Giagulli, V. A.; Maseroli, E.; Vignozzi, L.; et al. (2016). “Testosterone supplementation and body composition: results from a meta-analysis of observational studies”. (source)
  2. Travison, Thomas G.; Morley, John E.; Araujo, Andre B.; O’Donnell, Amy B.; McKinlay, John B. (2006). “The Relationship between Libido and Testosterone Levels in Aging Men”. (source)
  3. Topo, Enza; Soricelli, Andrea; D’Aniello, Antimo; Ronsini, Salvatore; D’Aniello, Gemma (2009). “The role of molecular mechanism of D-aspartic acid in the release and synthesis of LH and testosterone in humans and rats”. (source)
  4. Pilz, S.; Frisch, S.; Kuhn, J.; Dreier J.; et al. (2011). “Effect of vitamin D supplementation on testosterone levels in men”. (source)
  5. Alvares, Thiago S.; Conte, Carlos A.; Paschoalin, Vania M. F.; Silva, Joab T.; et al. (2012). “Acute l-arginine supplementation increases muscle blood volume but not strength performance”. (source)
Jacob Ladon
Jacob Ladon is a staff writer and former amateur bodybuilder. He has been passionate about bodybuilding since he was 15 years old and discovered the joys of training in the gym. He reports and comments on all bodybuilding related matters.