DNA Lean Test-FX Testosterone Booster
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Test-FX® T-Boosters For Men 150 Caps (12 NATURAL INGREDIENTS)

£49.99 £44.99
Test-FX® T-Boosters For Men 150 Caps (12 NATURAL INGREDIENTS) has a rating of 4.9 stars based on 22 reviews.

Test-FX V 2.0: The Science-Based Testosterone Support Solution

Test-FX Version 2.0, our potent new T-Support, isn't just a supplement; it's a evidence-driven nutritional marvel designed to help optimise your testosterone naturally, for a flourishing, and more vibrant life.

Are you facing challenges such as lethargy, a dwindling libido, struggling with muscle gain, or have crossed the 30-year milestone?

Whether you're on a quest for a natural testosterone boost or aiming for a rejuvenated lifestyle, Test-FX stands ready to be your ally.

Our science-based formula doesn't promise miracles, but it is crafted real results.

Featuring four effective trademarked ingredients - KSM-66®, TestoFen®, Vita-Algae® D3, ZMA® - our unique formulation goes beyond the ordinary.

But we didn't stop there.

An additional stack of eight well-documented natural compounds is the added secret sauce.

We've carefully chosen essential minerals and key vitamins that play a pivotal role in maintaining healthy testosterone levels, supporting your body's Hypothalamus-Pituitary-Testicular axis (HPTA).

In addition, our formula includes bioactive estrogen busting botanicals to help to support balanced estrogen levels

Further aligning with the goal of a leaner and more chiseled physique.

But the star of the show is KSM-66 Ashwagandha, an ancient ayurvedic herb, standardised for quality and purty using todays technologically advanced methods.

Various strong lines of evidence suggest KSM-66 Ashwagandha has a multitude of potential health benefits. including support for stress reduction, cognitive function, and T-levels.

Let's be clear - we don't claim that by taking Test-FX you'll magically transform in Thor and be able to lift his legendary hammer.

Nor do we try to convince you that our product is a magical pill with the capacity to metamorphosise you into the incredible Hulk.

However, what Test-FX will do is give you a legitimate edge in optimising your testosterone levels naturally, which can positively impact libido, well-being, performance, and recovery from exercise.

Perhaps the best part?

Unlike synthetic injectable testosterones, Test-FX is your safe, effective, and side-effect-free choice. 

No pharmacologically induced acne, mood swings, hair loss, or disrupted sleep patterns – just a reliable natural solution prioritising your health without compromise. 

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 persons over the age of 18. Suitable for both men & women. 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.

Serving size: 5 vegetable capsules
Servings per container: 30
DNA Lean Test-FX™
Amount per 5 capsule serving
Vitamin K2 MK7 (Menaquinone-7)
Vita-Algae® D3 Vitamin D (Cholecalciferol)
ZMA® Complex:
Vitamin B6 (from Pyridoxine HCI) 10mg
Magnesium (from Magnesium Citrate, Magnesium Oxide) 429mg
Zinc (from Zinc Aspartate and Zinc Mono-L-methionine) 29mg
Selenium (from Sodium Selenite) 55mcg
Fenugreek Seed Extract 33:1 (Testofen® )
600mg (300mg Saponins)
KSM-66® Organic Ashwagandha root extract 12:1 300mg (15mg Withanolides)
Ginseng Korean Extract 10:1 100mg (20mg Ginsenosides)
Grape Seed Extract 120:1 (Vitis vinifera L.)
75mg (71mg Proanthcyanidins, of which 68mg Polyphenols)
Maca Extract 10:1 (Lepidium meyenii) 50mg (45mg Maca Extract)
Nettle Leaf Extract 20:1 (Leaves of Urtica dioica) 50mg (48mg Nettle Leaf Extract)
Vitamin K2 (Menaquinone-7) 

The dynamic duo of Vitamin D and Vitamin K2 is crucial for your overall health and well-being. Vitamin D acts as the catalyst, triggering the production of vitamin K-dependent proteins that rely on vitamin K for proper function. This powerful combination not only supports bone health but also orchestrates a harmonious dance regulating calcium metabolism, fortifying your skeletal system. It's crucial to supplement with both Vitamin D and Vitamin K, ensuring a nutritional balance that sidesteps the risks of soft tissue calcification and cardiovascular issues that are associated with stand alone vitamin D supplementation.

Vita-Algae 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. The most commonly known functions being the facilitation and regulation of the absorbtion of the minerals calcium & phosphorus needed for healthy mineralisation of bone. However vitamin D3 is much more than just a vitamin, it's actually a steroid hormone. In fact, one study in particular, showed that the effect of vitamin D supplementation on testosterone levels in men lead to a significant increase in testosterone. Although good 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.

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.


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.


The essential mineral selenium is a key player in supporting natural testosterone production. Acting as a cofactor for selenoproteins, selenium aids in maintaining optimal testicular function, crucial for the synthesis of testosterone. By safeguarding reproductive health and mitigating oxidative stress, this essential mineral ensures your hormonal balance stays in peak condition. 

Testofen® (Fenugreek Seed Extract)

Testofen, a high-quality standardised Fenugreek Seed Extract, is renowned for supporting natural testosterone. It operates through furostanolic saponins, stimulating luteinising hormone production, and as a result, triggering testosterone synthesis. This botanical not only supports vitality but also amplifies your overall well-being. 

KSM-66 Organic Ashwagandha Root Extract

KSM-66 Ashwagandha is widely Known for its ability to support natural testosterone production. Its adaptogenic properties combat stress, helping to balance cortisol levels that can otherwise inhibit testosterone. Elevate not just your hormones, but your overall well-being with this evidence-backed, natural marvel.

Ginseng Korean Extract (Agaricus Bisporus)

Ginseng Korean Extract, a natural ally in promoting testosterone production. Its active compounds, like ginsenosides, foster enhanced blood flow, and surges in levels of key steroidogenesis-related enzymes which have been shown to induce the increased production of testosterone both in vivo and in vitro. By bolstering hormonal balance, this extract contributes to increased vitality and overall well-being. 

Grape Seed Extract (Proanthcyanidins and Polyphenols)

Grape Seed Extract, a natural fruit-derived compound boasting aromatase inhibiting properties and robust antioxidant protective capabilities. As a natural ally, it supports the delicate balance between testosterone and estrogen levels, fostering hormonal harmony. Its unique attributes help to shield against oxidative stress and aid in maintaining optimal hormonal equilibrium.

Maca Extract (Lepidium meyenii)

Maca Extract, celebrated for its prowess in kindling libido and sexual vitality. Operating as a natural aphrodisiac, studies also confirm the association between sexual desire and maca extract.

Nettle Leaf Extract (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).

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 ageing process.

What are testosterone boosters?

A Testosterone booster is a class of supplement that is designed to aid in the natural production of Testosterone and maximise its output. 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 30.

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.

Are testosterone boosters bad for you?

No. Testosterone is naturally produced in the testes and is necessary for maintaining health, athletic performance, recovery and libido.

Do testosterone boosters really work?

Testosterone boosters can contain a myriad of ingredients, needless to say some are effective and some are not so effective. All of the ingredients contained within Test-FX™ are thoroughly researched and backed-by-science.