1 in 4 men affected¹
Deep dive into your health
Test and track the total level of testosterone in your blood, a hormone essential for sex drive, muscle mass, fertility, and mood. This test can establish whether you have low testosterone levels.
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.
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
90% of men with low testosterone go untreated³
In fact, many men are misdiagnosed with having depression
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
Up to 4.4 times more likely to be depressed⁵
Low testosterone is strongly associated with an increased risk of depression
SYMPTOMS
The signs of low testosterone
If these symptoms⁶ are holding you back, at-home blood tests can provide an easy and straightforward way to assess your testosterone levels.
Erectile dysfunction
Decreased libido
Fatigue
Poor sleep
Mood changes
Difficulty concentrating
Loss of muscle mass
Increased body fat
NUMAN BLOOD TESTS
How it works
STEP ONE
Order your at-home test
Order your at-home test and get free 48-hour letterbox delivery.
STEP TWO
Collect your blood sample
Follow the simple instructions in your blood test. Return your sample for free.
STEP THREE
Get personalised results
Within 3–5 days, you’ll receive personalised results showing whether your testosterone levels are low, along with clear, actionable advice from our experts.
Testosterone treatment
An effective way to raise testosterone levels
Low testosterone levels can be effectively managed with TRT. Take the first step to find out if you're eligible — with a quick, at-home blood test. Here’s what you can expect as your treatment takes effect and your testosterone levels rise.⁷
Month 1-3
Higher libido
Stronger erections
Improved mood and energy
Improvement in inflammation markers
Early fat loss and muscle gain
Month 3-6
Higher strength and endurance
Improved cardiovascular health
Reduced risk of type of 2 diabetes
Further fat loss
Month 6 onwards
Higher bone density
Improved cognition
Faster recovery
Ongoing reduction in visceral fat
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.
What insights will I get?
The Testosterone Blood Test measures five key biomarkers to give you an accurate testosterone reading. See the descriptions below for each biomarker tested.
BIOMARKERS
Which biomarkers are tested?
Click on each biomarker to get insights into what it is and how it affects your health.
UK DOCTORS AND CLINICIANS
Your expert team
Specialists in medicine, nutrition, performance, and diagnostics.
Dr David Weinstein
Men's Health Medical Lead
MBBS MRCGP PGCERT Med Ed.
Mo Dekmak
Head of Clinical Product
MPharm PgDip IPresc
Dr Dimitris Schizas
Numan Doctor
MBBS MRCGP MSC BSSM
Dr Michael Lacey
Numan Doctor
MBChB BSc (Hons) MRCGP
Dr Alexandra Davidson
Numan Doctor
BSc (Hons) MBBS MRCGP AFHEA MA (Hons) AFMCP
Abby Watts
Senior Nurse Prescriber
BSc Adult Nursing, IP
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Your questions answered
REAL PEOPLE, REAL IMPACT
Over 500,000 people have come to us to improve their health
I put off getting a private blood test for 12 months and felt terrible for all of that time. If I’d gone ahead 12 months ago my issues could have been resolved then.
I have been trying through the NHS for 3 years and had no success. Once Numan highlighted what the deficiency was I got my doctor to confirm the results which were indeed accurate.
Refreshingly quick and easy to complete. The results were back in two working days with a succint, clear and useful analysis along with the full results.
Knowledge
Blood tests: 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
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