Test-FX™ Testosterone Booster 120 caps

More Views

Test-FX™ Testosterone Booster 120 caps
Androgen support | DNA Lean® Test-FX™
  • Buy 2 for £37.99 each and save 6%
  • Buy 3 for £36.99 each and save 8%
  • Buy 5 for £34.99 each and save 13%

Availability: In stock


What makes our testosterone booster work

Our Formula

Our Formula

At DNA Lean we understand that choosing the right testosterone booster pills can be a tricky affair, there are so many products for sale in the UK and online that all claim to work miracles and each promising the earth! So how can they all be the best?

Well here's the catch...

Simply put - they can't all be the best! The real story is most companies surround their products with unsubstantiated hype and don't even disclose the true dosages of the ingredients they use by hiding behind a "proprietary" blend. In this scenario you may be getting less that one milligram of the expensive ingredients.

At DNA Lean we take the guess work out of choosing your supplements; we disclose every ingredient and its exact dosage, along with an indepth step by step explanation on what it does and why we included it in our product.

Bottom line is testosterone boosts physical performance

The male androgenic sex hormone Testosterone is proven by science to increase strength, muscle mass, speed, performance and is paramount to excel in any type of physical performance; it is of no wonder why synthetic testosterone is banned by all drug tested sports.

Testosterone is also a libido booster; typically men with higher T levels have a higher libido and vice versa. Furthermore science has discovered that as men age their testosterone production declines. While the exact mechanism of this is not yet known, it is known that maintaining a healthy testosterone level plays a significant role in anti ageing.

Here's why Test-FX will work for you

It's designed to support and promote natural testosterone production helping you fulfil your true potential. Test-FX is able to achieve all of this through a holistic approach that works using various different metabolic pathways, ensuring that you recieve maximum testosterone enrichment.

For example our Test-FX pills contain ingredients that are not only known to support testosterone production, but that also help support a healthy balance in estrogen; giving you the best of both worlds.

Helping natural testosterone

All of the above is just part of the story; Test-FX does not interfere with or break any endogenous endocrine functions. why does this matter? Simply put - using synthetic prohormone supplements turns off internal testosterone production.

This will go unnoticed for the duration these supplements are used simply because they are just replacing what has been shutdown. However once supplementation is stopped, sadly the user may well suffer from lowered testosterone (since the replacement hormone has finished), and typically lose everything that was gained.

but that's not all....

Using a synthetic prohormone type supplement can actually cause an increase in the female hormone estrogen. What's more, an increase in estrogen can actually increase body fat and water retention; giving you that bloated puffy look that you always wanted to avoid.

Results from Test-FX aren't temporary

There are no bad side effects such as low testosterone when supplementation of Test-FX is stopped; typically users keep the fruits of their hard labour. No problem! The only down side is that they won't continue to improve as rapidly as they did while using Test-FX.

Independant customer reviews over everything

We have so much confidence in our product that you wont see us making any bogus medicinal claims such as "our Testosterone booster will increase Testosterone by 400%", or "UK's best testosterone boosters", rather we feel that the results of our customers who use our product speaks volumes; being far more representative than any claim. Take a few minutes to check out our independant user reviews and see for yourself the high level of results users of Test-FX experience.

Serving Size: 4 Vegetable Capsules
Servings Per Container: 30
Amount Per Serving
Vitamin B6 (from Pyridoxine HCI) 15mg
Magnesium (from Magnesium Aspartate) 250mg
Zinc (from Zinc Mono-L-methionine and Zinc Aspartate) 20mg
Tribulus terrestris (Standardised Extract) (min. 45% Saponins) (Aerial Parts and Fruit) 750mg
D-Aspartic Acid 500mg
Boron (from amino acid chelate) 2mg
Resveratrol (from 500mg of (polygonum cuspidatum) root) 250mg
Red Wine Extract (Vitis vinifera) (grape skin) 10mg
Vitamin D3 (as Cholecalciferol) (from Lanolin) 1000iu
Stinging nettles (Urtica dioica) 350mg
White button mushroom (Agaricus bisporus) 300mg
Other ingredients  
  • - Vegetable Celluose
  • - Vegetable Magnesium Sterate
  • - Silica

Directions for use

On non training days: Take one serving with water before bed.
On training days: Take one serving with water one hour before working out.
Can be taken with or without food. Do NOT exceed stated dose.

Notice Of Safety
Only intended for use by men over the age of 18. Consult a medical practitioner prior to use if you have been treated for or diagnosed with or have a family history of any medical condition, or if you are using any prescription or over the counter drugs, including blood thinners. Discontinue use and consult a medical practitioner if unusual symptoms are experienced.

Manufactured in the UK
  • This product is a Food Supplement
  • Suitable for vegetarians
  • Alcohol free
  • Safe for drug testing

The ingredients



The mineral Zinc is essential for all cellular growth and also is a vital constituent of numerous enzymes present in every animal on earth. The human body only holds a small pool of Zinc which is rapidly used and therefore needs replenishing on a daily basis. If you are not eating enough Zinc your body will quickly recognise the deficit and instantly conserve its supply by retarding muscle growth, reducing immune system activity, and also sexual function. It should also be noted that zinc helps maintain a healthy Testosterone level in men, fall deficient in this essential mineral and you may find that your Testosterone levels also suffer.



High levels of Magnesium are contained in our bones, in fact approximately 60% of the human body's Magnesium content is found in our bones. If you are into working out, you want strong bones, strong bones need Magnesium! The other 40% of your Magnesium is used for, and essential for all cellular manufacturing processes, the burning of glycogen for energy, transmitting genetic codes to assimilate new proteins, and is also essential for the activity of over 300 enzymes.

Vitamin B6

Vitamin B6 (Pyridoxine)

Vitamin B6 is what we call a coenzyme (enhances the action of another enzyme) for over 100 enzyme functions in the human body. The most relevant functions in this instance being the metabolism of amino acids and is therefore critical to optimum growth and repair of skeletal muscle tissue.

Tribulus Terrestris

Tribulus Terrestris

Tribulus Terrestris is a flowering plant that has a natural affinity for warmer climates and hence is found mainly in Africa, Australia, and warmer regions of Europe.Tribulus Terrestris is purported for its natural Testosterone boosting properties and as such, Amazonian tribes have taken advantage of this natural wonder herb for centuries, using it in teas and other preparations for its virility effects and to increase testosterone.

D-Aspartic Acid

D-Aspartic Acid

D-Aspartic Acid otherwise known as DAA, is an amino acid wich some studies indicate has some very special properties. An Italian study in particular showed some very promising results. When DAA supplements were given to a group of healthy male weight trainers for 12 days. After which 87 percent of the subjects had significantly increased their Luteinizing hormone and Testosterone levels by 33 and 42 percent, respectively.



Numerous studies have found that Boron is probably essential for normal production of steroid hormones in humans, especially hormones involved in muscle growth. Its yet to be established how much Boron we need, however new properties and functions of Boron are being discovered all the time. It is now known that Boron plays a key role in optimisation of natural production of androgens and may even increase testosterone levels.


Resveratrol (polygonum cuspidatum)

Resveratrol is a phytonutrient (plant based nutrient) which can be found in berries such as raspberries and blueberries and also in the skin of red grapes. Most supplemental forms of Resveratrol are extracted from the Chinese knotweed plant; Polygonum Cuspidatum. Resveratrol has been found to have some amazing properties which may have various positive health benefits such as but not limited to; antioxidant properties, cholesterol lowering, cardiovascular function, reducing inflammation and supporting hormonal production. According to some studies, Resveratrol also significantly increases natural testosterone production from being both a selective Oestrogen receptor modulator[67] and an Aromatase inhibitor.

Red Wine Extract

Red Wine Extract (Vitis vinifera)

Red wine extract is also a phytonutrient similar to Resveratrol, extracted from red grapes. Red wine extract like Resveratrol, has a wealth of positive health benefits and has been linked to promotion of Testosterone production. These two compounds work in synergy; further enhancing the absorption and effectiveness of each other and therefore increasing their potencies when combined.

Vitamin D3 (Cholecalciferol)

Vitamin D3 (Cholecalciferol)

Vitamin D3 is one of a collection of vitamins that are essential for human function. Vitamin D3 is known to help regulate over one thousand biochemical and enzymatic reactions and functions. This "super" vitamin has even been shown to aid in the production of Testosterone. Although high amounts of naturally occurring vitamin D3 are found in eggs, fish and seeds, Test-FX is "mega" dosed with D3 to ensure maximum testosterone output.

Stinging Nettles (Urtica dioica)

Stinging Nettles (Urtica dioica)

Stinging nettles are one of the plants you may want to avoid touching, however ingestion of this powerful plant can have some great health benefits. Stinging nettles do not actually act as a Testosterone booster; rather they play their part in the Test-FX formula by helping to keep your Oestrogen levels in check. Extracts of Stinging nettles contain compounds that have been shown to inhibit the Aromatase enzyme which is responsible for converting increased levels of Testosterone to the female hormone Oestrogen. Stinging nettles have also been shown to have a mild anti inflammatory effect and may even aid in the relief of Benign Prostatic Hyperplasia (BPH).

White Button Mushroom (Agaricus bisporus)

White Button Mushroom (Agaricus bisporus)

The White button mushroom is one of the most commonly eaten mushrooms in the world today. This mushroom is grown globally, cultivated in more than seventy countries. Commonly referred to as white button mushroom, button mushroom, table mushroom and cultivated mushroom. This mushroom has some great nutritionals, packed full of highly bio available B vitamins amongst other healthy micronutrients. Extracts of these powerful mushrooms have been shown to contain Aromatase Inhibitors (AI). Aromatase is an enzyme which is responsible for synthesising female sex hormones - Oestrogens. In some cases of men with naturally high Testosterone Levels the Aromatase enzyme can convert some Testosterones to Oestrogens, causing undesirable effects such as increased body fat, water retention and Gynocomastia. Aromotase inhibitors work by "blocking" the Aromotase enzyme so that Testosterones cannot be converted to Oestrogens, thus maintaining a higher Testosterone level and preventing unwanted side effects from increased Oestrogen levels.



What is Testosterone?

Testosterone is a male anabolic and androgenic steroid hormone produced in the testes. Testosterone is metabolised and manufactured from Cholesterol; endogenous Testosterone levels are maintained via an internal biochemical feedback mechanism known as the Hypothalamus, pituitary, Testicular Axis (HPTA). Testosterone is an androgen and as such gives rise to male characteristics; facial and body hair, deepening of the voice, virility, increased strength and muscle mass and boosted libido, Testosterone also plays an integral role in male fertility and the production of sperm. Men naturally produce Testosterone in much larger quantities than women, typically Testosterone levels significantly increase when a young male reaches puberty, but, also steadily decline from around the age of 30 onwards as part of the aging process.

What is a Testosterone Booster?

A Testosterone booster is a class of supplement that is designed to aid in the natural production of Testosterone and maximise its ouput. These supplements do not replace, nor suppress endogenous Testosterone; rather they help to support and optimise the natural production of testosterone. They can contain a variety of different ingredients from minerals, to herbs and other plant extracts. Testosterone boosters are very much different from supplements known as prohormones, prohormones can suppress natural Testosterone production. Users of prohormones typically find they need to run Post Cycle Therapy (PCT) to try and recover their own production of Testosterone after they have stopped using prohormones.

Who can use Test-FX?

Test-FX is not intended to be used by anyone under the age of 18. If you are a male over the age of 18 and in good health, you can safely take these pills. Test-FX is designed to support Testosterone production and is therefore beneficial to anyone who works out in any physical capacity whether it is competitive or just for fun. Since Testosterone levels typically decline with age, it may be of particular use for anyone who is over the age of 40.

Does Test-FX have any ill side effects?

Test-FX is a food supplement and does not have any known side effects, therefore you should not find that you experience any negative or ill effects with this product, however we always recommend that you check with your doctor before you start using any supplements, especially if you are taking any prescription medicines, over the counter drugs, or have any health related problems.

Is Test-FX the best UK Testosterone booster?

This is one of our most frequently asked questions and in our opinion one that is impossible to answer. There is no absolute measure of what the best testosterone booster is, and as such is not tangible. Besides that we don’t focus on other companies products, we innovate, and focus on creating the best possible products that we can bring to market. We would question the integrity of any company that does claim to have the "best" product on the market. Try our products for yourself, you can be the judge and leave a product review.

Top Tips

Top Tips

6 Top tips for boosting testosterone naturally

Our 6 best tips to increase Testosterone

Melatonin: the master of all hormones

Melatonin is produced in a tiny pine cone shaped gland in the centre of the brain called the pineal gland. This pineal hormone has many functions, one of which is to regulate our Circadian rhythms; circadian rhythm is a 24 hour hormonal sleep wake cycle which is governed by light. Melatonin is at the top of your hormonal cascade and is responsible for regulating and controlling many different hormones that are down stream of it, one of which is the androgen Testosterone. Suffer faltering Melatonin levels and you will also suffer poor Testosterone output. DNA lean® recommend supplementing with 3mg of timed release Melatonin, to be taken 1 hour before your normal bedtime.


Increased body fat lowers testosterone

A simple but effective tip for maintaining an optimal Testosterone level, is to keep body fat between 8 - 15 percent. Studies show that Testosterone is lowered in obese men, whereas men with a lower body fat percentage typically have more Testosterone. This is largely due to an increase in production of an enzyme called aromatase; aromatase is produced in fat cells and is responsible for the conversion of Androgens to Oestrogens. An increase in body fat can lead to an increase in aromatase, which can lower Testosterone levels by converting it to Oestrogens. For this reason, DNA lean® recommend keeping your body fat in a range between ten and fourteen percent.


Lifting weights gives a natural testosterone boost

From the vast plethora of studies conducted measuring Testosterone levels of men, before, during, and after intense weight training. It is now a proven fact that lifting weights and resistance training does increase Testosterone. On this basis DNA lean® recommend visiting the gym 3 days each week to perform a variety of compound free weight exercises.


Whole eggs provide the building blocks of testosterone

Whole eggs are healthy and nutritious, a great source of first class proteins, and can also help you maximise your Testosterone output. The yolk of an egg contains cholesterol, which in recent years has had a lot of bad press, despite the fact that a certain amount of cholesterol is imperative for maintaining normal bodily functions and health. Due to its steroid like molecular structure, cholesterol plays a vital role in the manufacture of steriod hormones such as testosterone. Scientific studies have proven that cholesterol is obligate intermediate in steroidogenesis and the synthesis of testosterone. Therefore DNA lean® recommend eating 2-3 organic free range non gmo whole eggs a day to provide your body with the building blocks of Testosterone.


Reduce alcohol consumption

Alcohol can have a negative effect on Testosterone, scientific studies have shown that heavy alcohol consumption reduces Testosterone levels in the blood. Spending the evening down the local will hamper your Testosterone levels for at least 24 hours, furthernore the high sugar content in beer can also spike insulin and lead to an increase in body fat. DNA lean® recommend a replacing the pints of beer with weekly glass of red wine (which is high in resveratrol), then switch to bottled water.


Stress hormones kill Testosterone

Even the best of us can fall a folly to life’s ups and downs, faltering to the self created pressures of living in our modern world. How we react mentally and emotionally to a given situation is imperative to maintaining our health and wellbeing. Aside from a plethora of stress related ill health conditions, stress is also known to raise Cortisol levels. Cortisol is known as a glucocorticoid, a hormone produced in the adrenal cortex of the Kidneys; your body produces Cortisol when you become stressed, this can be either physical or emotional stress. Cortisol is a catabolic hormone and can soon cannibalise hard earned muscle mass and reduce Testosterone levels. Minimising stress will most definitely help in maintaining a healthy Testosterone level. Here are a few suggestions to help de-stress and minimise Cortisol production.


  • Supplement with adaptogenic herbs such as Rhodiola Rosea.
  • Take regular massage therapy.
  • Try out traditional Chinese acupuncture (Western acupuncture is different)
  • Take up regular meditation.


These are just a few suggestions brought to you by our team, if you do not wish to try any of these things out we suggest trying to find a stress free outlet such as listening to some music or simply having some peace and quiet.

Tweet: 6 Top tips to increase Testosterone http://ctt.ec/CBcQW+


Customer Reviews 11 item(s)

Test-FX™ Testosterone Booster 120 caps
No need to ever switch product
I'm a competitive natural bodybuilder and when diet, trust me testosterone drops. With Test Fx, for the first time in my life I actually experienced a strength increase on a diet! I also noticed libido is definitely improved. I don't think Ive tried a better natural test booster. Give it a go
5 / 5
Review by / (Posted on 25/09/2016)
Test-FX™ Testosterone Booster 120 caps
My favourite
It seem I wasted time with other boosters cus this 1 the best. My wife lov me now :-)
4 / 5
Review by / (Posted on 12/09/2016)
Test-FX™ Testosterone Booster 120 caps
This product really is outstanding , loved using it , deffo ordering again
5 / 5
Review by / (Posted on 12/02/2016)
Test-FX™ Testosterone Booster 120 caps
Having recently turned 48 I have been looking for a supplement to help perk me up a bit. I was scepticle after trying a few different ones from Holland and Barretts which didnt really seem to do anything. A friend who uses test fx recommended it, who I am very thankful for! I am definately feeling its effects, and my libido is better than ever. I cant sing this products praises enough.
5 / 5
Review by / (Posted on 26/01/2016)
Test-FX™ Testosterone Booster 120 caps
Great product
Great product, I tried Few other natural test boosters but this one beats them hands down. I have been doing research on ingredients and Test FX has all the main ingredients.

It kicks in 2nd week and I was surprised how strong I was getting on big exercises on weekly basis and increases sex drive as well.
5 / 5
Review by / (Posted on 13/01/2016)
Test-FX™ Testosterone Booster 120 caps
10/10 Review and im not joking either
Wow this product deffo does what it say on the tub. Better strength recovery and like one review says great boners ha . Superb product from DNA 10/10
5 / 5
Review by / (Posted on 05/02/2015)
Test-FX™ Testosterone Booster 120 caps
Really boosts testosterone
I have got way stronger since using test fx, and find it gives me a great boner too. Love this supplement......
5 / 5
Review by / (Posted on 01/02/2015)
Test-FX™ Testosterone Booster 120 caps
Awsum product
Awsum product the best by far
5 / 5
Review by / (Posted on 29/01/2015)
Test-FX™ Testosterone Booster 120 caps
Top notch
After only being into my second week of my new years training regime, for which time I have been using this product. I am getting tremendous results. I have managed to gain 3 lbs while dropping body fat and am finding my recovery is much faster than ever. Thoroughly recommend this product.
5 / 5
Review by / (Posted on 19/01/2015)
Test-FX™ Testosterone Booster 120 caps
this stuff works
I really rate this product since I have been using it my squat deadlift and bench press have all gone up. As a natural power lifter this product definitely gives you the edge
5 / 5
Review by / (Posted on 10/01/2015)
Test-FX™ Testosterone Booster 120 caps
First class product
WOW is the word that springs to mind with this product! I have been using test fx for 3 weeks now, and the change in my physique is amazing! I look and feel much leaner and harder. My muscles literally feel like they are going to explode when im in the gym training and get a pump. When I use test fx on non training days before bed I also notice that I wake up feeling more refreshed. Totally love this product and is the best test booster I have used by far!
5 / 5
Review by / (Posted on 11/06/2014)