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Enhanced hormonal stimulation
Zinc helps maintain normal testosterone levels in the blood, Vitamin D3 supports normal muscle function, and Magnesium aids in reducing tiredness and fatigue.
All content on this page has been medically reviewed by: Hassan Thwaini, Clinical Pharmacist and Copywriter, Master of Pharmacy (MPharm) on 30 March, 2026. GPhC Registration: 2221320View profile
Science-backed supplements
A daily powdered supplement containing a specially formulated blend of vitamins and minerals, carefully selected to support your testosterone levels.
Balanced levels of testosterone can give you more energy, aid muscle growth, and improve your mood.
Knowledge
The role of testosterone
Testosterone is crucial for men's health and plays a central role in many aspects of wellbeing. Click on each one to understand more.
ENHANCED FORMULA
Advanced supplements
Here’s how Numan’s High Strength Testosterone Supplement differs from our standard supplement.
Optimised herbal extracts
Contains 12 times the amount of fenugreek extract than the standard supplement, with 50% fenuside. This makes it similar in quality to some of the top branded extracts.
Supports nutritional status
Formulated with 50% more zinc, crucial for maintaining normal male fertility and reproductive health whilst providing three times the vitamin D to support regular muscle function and bone health.
What’s in High Strength Testosterone Supplement?
Fenugreek Extract 600mg
Fenugreek extract is derived from the seeds of the fenugreek plant. At a dosage of 600mg, it’s been studied for its potential to naturally increase testosterone levels.
D-Aspartic Acid 3000mg
D-Aspartic Acid is an amino acid that plays a role in the production and release of hormones in the body. At a dosage of 3000mg, it’s believed to stimulate the release of a hormone in the brain that leads to the production of testosterone. Some studies suggest this could potentially increase testosterone levels, particularly in individuals with low levels or impaired sexual function.
Magnesium 250mg
Magnesium is an essential mineral that plays a role in over 300 biochemical reactions in the body, including the synthesis of testosterone. Some studies suggest a dosage of 250mg can help optimise testosterone levels, especially when combined with regular exercise. Magnesium also supports muscle and nerve function, energy production, and bone health.
Zinc 15mg
Zinc is a critical mineral for male fertility and testosterone production. With a dosage of 15mg, it plays a vital role in hormone production, including testosterone.
Copper 1mg
Copper, while not directly linked to testosterone production, is a key mineral that plays a role in nerve, bone, and immune system health.
Vitamin D3 600IU
Vitamin D3 is synthesised in the skin in response to sunlight and can also be consumed through supplements. It’s been associated with bone health and immune function especially in individuals with low baseline levels or limited sun exposure.
Low testosterone: the hidden health crisis
Low testosterone can harm your wellbeing, and health issues can worsen it. Numan dives deep to get to the root of the problem.
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1 in 4 men affected¹
Low testosterone impacts a significant portion of the male population, with prevalence increasing to 40% in men over 45
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Low-T in 1/3 of ED cases in over 65s²
Testosterone deficiency reduces libido, impairs blood flow to the penis, and affects penile tissue health
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90% of men with low testosterone go untreated³
In fact, many men are misdiagnosed with having depression
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Up to 2x more likely if overweight or diabetic⁴
Men who are obese or have type 2 diabetes face a significantly higher risk of low testosterone
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Up to 4.4 times more likely to be depressed⁵
Low testosterone is strongly associated with an increased risk of depression
Key insights into your testosterone
What is testosterone?
Testosterone is a sex hormone that’s vital for men’s health. Produced in the testes, the hormone supports key male functions including sex drive, ability to get and maintain erections, fertility, muscle mass, and mood.
Why is testosterone important?
To ensure healthy bodily functions, you must have a certain level of the hormone. Lower levels of the hormone can, in some cases, impact libido, sexual function, energy, muscle mass, and mood.
How do I measure my testosterone levels?
You can assess your testosterone levels by taking a Testosterone Blood Test. It measures five key biomarkers to give you an accurate testosterone reading.
FAQS
Your questions answered
High Strength Testosterone Supplement is a daily nutritional supplement which comes in the form of a powder. It contains a blend of ingredients that are specifically designed to protect and support normal levels of testosterone. This carefully selected formula is rooted in scientific research and only contains carefully curated ingredients to support an active lifestyle.
Like all supplements, High Strength Testosterone Supplement should be taken in combination with a healthy diet and lifestyle.
This includes:
Getting enough sleep (most adults need between 6 and 9 hours of sleep each night).
Maintaining a balanced diet (try to eat a balance of carbs, healthy fats, whole foods, and protein).
Avoiding excessive alcohol consumption (the NHS advises no more than 14 units - or 6 pints of average strength lager - a week).
High Strength Testosterone Supplement is ideal for those who want to support normal testosterone levels. It’s not a substitute for testosterone replacement therapy, so if you have clinically low testosterone, we recommend that you speak to your doctor for further advice and more specific treatment.
If you think you may have low testosterone levels you can find out by using our simple Testosterone Blood Test. Via the app, you’ll find a clear breakdown of your results with any biomarkers that fall outside of the normal range clearly marker. You’ll also get personalised advice from a clinician based on a thorough review of your results. This may include recommendations for lifestyle adjustments or if necessary, signposting you to a relevant health specialist.
Common symptoms of low testosterone include:
Tiredness
Low libido
Erectile dysfunction
Depression
Lack of sleep
Physical changes (loss of muscle mass and increased body fat)
Impaired cognition
High Strength Testosterone Supplement has no known side effects when taken as directed. If you exceed the recommended dosage, seek medical advice immediately.
High Strength Testosterone Supplement is a supplement for those looking to maintain normal testosterone levels. It’s not the same as testosterone replacement therapy. If you suspect you may have low testosterone levels, speak to a medical professional before deciding on your next steps.
How long a supplement takes to see the benefits can vary from person to person. It can be taken long-term and there’s no maximum amount of time over which it can be used.
High Strength Testosterone Supplement is suitable for those over the age of 18. If you’re pregnant, nursing, taking any medications or have a medical condition, please consult your GP before taking this supplement. Supplements are not a substitute for a healthy diet and active lifestyle.
Each supplement contains D-Aspartic Acid, Acidity Regulator (Citric Acid), Magnesium Citrate, Fenugreek Extract (50% Fenusides), Natural Flavouring, Anti-Caking Agent (Silicon Dioxide), Colour (Beetroot Red), Sweetener (Sucralose), Zinc Citrate, Vitamin D3 (Cholecalciferol – Vegan), Copper Bisglycinate.
Low testosterone levels can cause a drop in libido (sex drive), which may make it harder to get an erection. Taking a High Strength Testosterone Supplement can help to maintain normal testosterone levels, which can help to support libido.
It’s worth noting that it takes some time for the beneficial effects of High Strength Testosterone Supplements to build in the body. While this is helpful for maintaining testosterone levels in the long term, it may not be ideal for those who are experiencing erectile dysfunction and need a solution.
If you need to treat erectile dysfunction, take a free online consultation. Your answers will be reviewed by a qualified clinician who can recommend the best treatment for you.
Clinically proven treatments for erectile dysfunction include:
The High Strength Testosterone Supplement comes in the form of a powder. Add 1 sachet (7g) to 300ml of water and shake well. Consume 1 serving per day.
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Sexual health
Vital nutrients for male health
Support your libido, sex drive, and sexual health.
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Knowledge
Supplements: what you need to know
References
¹ Andre B. Araujo, Gretchen R. Esche, et al. Prevalence of Symptomatic Androgen Deficiency in Men, The Journal of Clinical Endocrinology & Metabolism, Volume 92, Issue 11, 1 November 2007, Pages 4241–4247
² Rabijewski M, Papierska L, Kozakowski J, Zgliczyński W. The high prevalence of testosterone deficiency in population of Polish men over 65 years with erectile dysfunctions. Aging Male [Internet]. 2012;15(4):258–62. Available from: http://dx.doi.org/10.3109/13685538.2012.729233
³ Layton JB, Li D, Meier CR, Sharpless JL, Stürmer T, Jick SS, et al. Testosterone lab testing and initiation in the United Kingdom and the United States, 2000 to 2011. J Clin Endocrinol Metab [Internet]. 2014;99(3):835–42
⁴ Wang C, Jackson G, Jones TH, Matsumoto AM, Nehra A, Perelman MA, et al. Low testosterone associated with obesity and the metabolic syndrome contributes to sexual dysfunction and cardiovascular disease risk in men with type 2 diabetes. Diabetes Care [Internet]. 2011;34(7):1669–75. Available from: http://dx.doi.org/10.2337/dc10-2339
⁵ Indirli R, Lanzi V, Arosio M, Mantovani G, Ferrante E. The association of hypogonadism with depression and its treatments. Front Endocrinol (Lausanne) [Internet]. 2023;14. Available from: http://dx.doi.org/10.3389/fendo.2023.1198437
⁶ Morales A, Bebb RA, Manjoo P, Assimakopoulos P, Axler J, Collier C, et al. Diagnosis and management of testosterone deficiency syndrome in men: clinical practice guideline. CMAJ [Internet]. 2015;187(18):1369–77. Available from: http://dx.doi.org/10.1503/cmaj.150033
⁷ Saad F, Aversa A, Isidori AM, Zafalon L, Zitzmann M, Gooren L. Onset of effects of testosterone treatment and time span until maximum effects are achieved. European journal of endocrinology. 2011;165(5): 675–685
Support your testosterone levels
It's now even stronger and more nourishing, featuring a powerful blend of scientifically-backed ingredients designed to support your hormonal health.
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