Nugenix Free Testosterone Booster Reviews

Is Nugenix Free Testosterone Booster Any Good?

Nugenix Free Testosterone Lacks Almost Any Substance.

Nugenix Free Testosterone Booster is a supplement produced by the Nugenix brand which they claim can enhance your testosterone production and free test levels, increase energy levels and drive, and improve your libido, strength, lean muscle, workout ability, endurance, physique, and sexual functions and performance.

Nugenix even claims to do all of this while being free from stimulants and banned substances and made under strict FDA guidelines. However, as we have seen with other Nugenix products, our in depth review of this testosterone booster found that these lofty claims simply are not close to being a reality.

The Nugneix Free Testosterone Booster formula contains only natural ingredients and includes vitamins b6 and b12, the mineral zinc, and a proprietary blend that consists of l-citrulline malate, TestoFen fenugreek extract (which is a standardized extract, but nothing too special despite marketing hype), and tribulus fruit extract. It then also has gelatin and magnesium stearate to hold it all together, which is pretty par for the course.

The use of a proprietary blend is an immediate red flag, as it is a tactic usually only used to hide ineffective ingredient doses in a low quality supplement. This is all but confirmed upon closer review, as we can see that the dose of the main ingredient in the blend is significantly too low.

With other ingredients then being either listed as so low that they will not work or so strong that they may cause side effects, as well as one that is not proven to actually work in the first place, there really is nothing to like about this product.

This is before we even get to the countless complaints left by past customers in their reviews. Considering for the same price you can get some of the best testosterone boosters on the market, that contain the correct doses, of the few effective ingredients in Nugenix, along with half a dozen more well backed ones, we can't recommend Nugenix Free Testosterone Booster. For most people we generally recommend Prime Male as a go to if you're looking to raise free testosterone and block estrogen specifically.

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Nugenix Free Testosterone Booster Customer Reviews

This Nugenix test booster holds a decent looking average review score of 4 out of 5 stars with past users on Amazon.

When looking at the positive reviews though, virtually all of them simply say that "it worked", rather than giving any details on their actual experience with the product. This not only makes them unhelpful, it also brings into question whether or not each is made by a genuine, verified purchaser.

When looking at the negative Nugenix reviews, however, people seemed much more willing to elaborate and go into detail on their experience with this test booster.

While many customers complained that the product did not effect their testosterone, energy, or muscle growth in any way, others mentioned it being very expensive or of a low quality, and some actually reported experiencing several side effects.

These included it making them smell, promoting excessive body hair growth, accelerating male pattern baldness, or causing mood swings, stomach pains, sweating, shaking, nausea, vomiting, a lack of energy, digestive issues, and a burning sensation when they urinate.

A user who made a one time purchase even reported that their doctor instructed them to stop taking the supplement as it had caused them to develop alarming liver enzyme levels, while another customer said a doctor did a blood test and confirmed the Nugenix product had not affected their t levels in the slightest.

These customer reviews support the conclusion that our personal Nugenix review brought us to, which is that it is simply not a good product and it is more likely to cause side effects than it is to do you any good.

Nugenix Free Testosterone Booster Ingredients

Vitamin B6 (As Pyridoxine Hydrochloride) - 2 MG - Vitamin b6 is made up of 6 chemical compounds that are responsible for more than 140 different coenzyme reactions throughout the human body between them. It is sometimes put in testosterone boosters as it can help to prevent or slow your natural oestrogen production.

By keeping your oestrogen levels down, your hormone balance will shift and you will avoid experiencing any of the symptoms associated with low testosterone levels.

It can then also offer a range of health benefits beyond just balancing your hormone levels, such as boosting your metabolism of amino acids, fat, and glucose, enhancing the health and functions of the immune system, and increasing the production of neurotransmitters (1).

The issue is, research shows that the maximum daily dosage of vitamin b6 proven to be safe is 1.3 mg. With this Nugenix Test Booster containing a dosage that is more than 50% greater than this at 2 mg per serving, it is just too strong and puts you at great risk of experiencing a variety of unpleasant side effects.

Vitamin B12 (As Methylcobalamin) - 50 MCG - Vitamin b12 is essential for effective cellular metabolism, as well as for the metabolism of nutrients like carbs, fat, and protein. It supports the central nervous system, controls blood flow and the production of red blood cells, and improves bone marrow, DNA, and nerve sheath production and maintenance.

It is included in some testosterone boosters not because it will boost testosterone production itself, but because becoming deficient in it will cause your levels to drop even further and cause a range of issues.

So, while it may not necessarily boost testosterone levels that are already low, depending on the cause, it can prevent the issue from developing or getting any worse.

Unfortunately, this will only happen if you consume between 100 and 1000 mcg of vitamin b12 per day (2). As this Nugenix test booster contains just half of the minimum dose and a fraction of the optimal amount, it is simply far too weak to do you any good in a testosterone booster supplement such as this.

Zinc (As Zinc Chelate) - 1 MG - Zinc is a mineral and brittle metal element that is put in testosterone booster supplements as it stimulates the pituitary gland and causes it to increase the production of luteinizing hormone. As luteinizing hormone is required for the production of testosterone, increasing its production will boost t levels as well.

Taking supplements that contain the mineral will also benefit your overall health in a number of other ways too, including improving your immune system, metabolism, DNA synthesis, recovery time, and eyesight, and reducing inflammation and the signs of old age.

The problem is, for it to be of any use in a test booster supplement, you need to take a minimum of 10 mg per day (3). As a serving of this Nugenix test booster supplement contains just a single gram, it is simply far too weak and virtually guaranteed to be of no use whatsoever.

Nugenix Free Testosterone Complex - 2103 MG

L-Citrulline Malate - Citrulline malate is a compound made up of the amino acid citrulline and malic acid. Citrulline is converted into another amino acid, l-arginine, in the kidneys. This gives your body the ability to naturally boost its nitric oxide production, which will enhance your endurance, focus, energy levels, workout and sexual performance, heart health, and blood flow, and help to prevent erectile dysfunction.

Malic acid then aids ATP production, so it is ideal to improve power in short, explosive movements, such as those you would perform when lifting weights. This means it can be of use when your goal is to increase your strength or lean muscle mass.

There are, however, a few issues with the inclusion of citrulline malate in a supplement like this though.

For starters, while it may be able to promote improvements in your strength, muscle mass, and sexual health, it will not actually boost your testosterone production or testosterone levels. Then there is the fact that you will only see any benefits from taking citrulline malate if you use at least 6 grams per day (4).

While we do not know exactly how much citrulline malate is present in this Nugenix test booster, due to the proprietary blend they have used, the fact that the dose you would need to take is roughly three times the weight of the entire blend means it just is not possible for enough to be present to be of any use.

TestoFen Fenugreek Seed Extract (50% Fenuside) - Testofen is a patented fenugreek seed extract that must contain a fenuside content of at least of 50%. Research show that fenugreek seed extract can help boost low testosterone levels, increase sex drive, help you build lean muscle, and enhance the reproductive functions of adult males. There is also evidence that it can even reduce high sugar and cholesterol levels and combat health issues like diabetes as well.

The issue is, at least 600 mg of fenugreek seed extract is required every day in order to boost testosterone production and t levels and produce results, while 1,000 mg per day is the daily dosage required for it to produce the optimal results it is capable of (5).

While it is possible that this Nugenix test booster has either of these amounts of fenugreek seed extract, the proprietary blend makes it impossible for us to know for sure. It is also very unlikely that it contains the optimal dose, so it should not be counted on to produce any significant changes in your t levels.

Tribulus Fruit Extract - Tribulus fruit extract has been used in traditional medicines around the world for centuries, due to the incredible range of benefits that it is said to offer the human body. This includes it being able to boost libido and sex drive, functions, and performance, especially in men, prevent poor sexual health and issues like erectile dysfunction, and enhance your heart health.

These claimed benefits have led to tribulus terrestris extract often being put in many natural testosterone boosters. Unfortunately, there is little to no conclusive evidence to prove that tribulus fruit extract has any effect on your natural testosterone levels at all (6).

This means it is just as likely that the presence of tribulus fruit extract in this Nugenix test booster does absolutely nothing as it is that it will benefit you in any way.

Other Ingredients - Beyond the active ingredients that it contains, this Nugenix test booster supplement also contains a pair of other ingredients, which are gelatin and magnesium stearate.

Magnesium stearate is only included to boost the bulk, stability, and texture of the powder within the capsules, and will not benefit your health or testosterone levels or production in any way or provide any other positive effects of any kind.

It could, however, lead to some people experiencing negative side effects, such as bloating, gas, depression, diarrhoea, forgetfulness, headaches, stomach pain, and low energy levels (7).

Gelatin will also not have a beneficial effect on your health, as it is used purely to create the capsule and make it smooth and easy to consume. However, it too can also cause side effects, such as bloating, diarrhoea, gas, heartburn, and nausea (8).

Nugenix Free Testosterone Booster Pros & Cons


  • Contains a number of vitamins, minerals, and ingredients proven to boost t levels, energy levels, libido, and muscle growth


  • A proprietary blend hides the exact dosages of half of the ingredients present
  • Most of the proven ingredients are visibly present in dosages that are either too low to be of use or so strong that they could cause side effects
  • Not all of the ingredients are proven to increase t levels at all
  • Very expensive
  • Made by a brand with a history of making ineffective supplements
  • Customers have complained about everything from no effects to side effects

Nugenix Free Testosterone Booster Review Conclusion

This test booster is sold as being able to benefit your body in countless different ways, but our Nugenix review found that is simply not the case. From using proprietary blends, incorrect dosages, and unproven ingredients, to a litany of negative reviews from past customers, it simply fails in almost every way.

That is why we highly suggest you avoid this Nugenix product and instead stick to using a a different test booster, as mentioned we generally recommend Prime Male and you can read more about it here. Capable of delivering all the benefits Nugenix claims to in just a few weeks, while actually saving you money, it is simply a far better supplement in virtually every way.

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Criteria Rating
Ingredients 3/10
Muscle Growth 3/10
Mood 3/10
Libidio 3/10
Value 2/10
Recommended 3/10