Higher testosterone
Average testosterone levels more than doubled within 1 month of starting treatment.²
treat low testosterone
Testosterone Replacement Therapy
Expertly managed testosterone treatment can be truly life-changing. Numan makes diagnosis easy and delivers best-in-class treatment to get you back to feeling like you again.
Clinician-led treatments
One-to-one support from TRT doctors
Fast, discreet delivery
What is TRT?
Testosterone replacement therapy is a treatment that helps raise low testosterone levels in men. It’s typically used when testosterone drops below a healthy range and starts to affect everyday life: things like energy, mood, sex drive, muscle strength, and motivation.¹
Our results
Why choose Numan for TRT?
Everyone’s body responds to treatment differently, but looking at anonymised data from patients on TRT at Numan can help show what often happens early on.*
More free-T
Average free testosterone levels - the biologically active form of testosterone - rise significantly in the first month.
Improved symptoms
Patients completing follow-up assessments reported lower average AMS scores over time, reflecting a meaningful reduction in reported symptom severity.2
How does TRT work?
Testosterone replacement therapy is a medical treatment provided only under clinical supervision.
1. Restores testosterone levels
TRT raises circulating testosterone back into a healthy range, increasing the amount available to act on tissues throughout the body.3
2. Activates hormone pathways
Testosterone works by binding to certain receptors, triggering cellular signals that influence energy, mood, muscle, bone, and sexual function.3
3. Stability
Different formulations release testosterone at controlled rates. Regular blood tests ensure levels stay balanced, effective, and safe over time.3
Digital clinic
Benefits of the Numan TRT Programme
Here’s what to expect from our three-part online TRT programme.
Clinician-led treatment
Tailored treatment plans, designed by our clinicians to support your health journey.
Ongoing clinical care
Clinicians will help you manage potential side effects, make dosage adjustments, provide free follow-up blood tests, and answer any questions you might have throughout the programme.
Doorstep delivery
Regardless of your treatment, your package will be delivered in a discreet box, right to your doorstep.
Get a comprehensive diagnosis
At Numan, we make getting a testosterone deficiency diagnosis simple and affordable. For a much lower cost than any other private provider, you’ll receive a full assessment, including comprehensive blood tests and a video consultation with one of our doctors.
| What's included | Numan | Other private clinics** |
|---|---|---|
| Initial venous blood test | Yes | No |
| Doctor consultation included in price | Yes | No |
| Confirmatory venous blood test included in price | Yes | No |
| Total diagnostic cost | Up to £99 | £169+ |
Step by step
How to join the TRT programme
STEP ONE
Test your levels
Our blood test accurately measures your total and free testosterone levels, along with additional health markers.
STEP TWO
Talk to a doctor
If your results show low or borderline low testosterone, and you’re experiencing symptoms, one of our Numan doctors will review your case to determine whether TRT is right for you.
STEP THREE
Start treatment
If you’re eligible, you’ll be prescribed the treatment that suits your lifestyle, and you'll begin regular monitoring to ensure safe, effective treatment.
Testosterone treatment
How much does TRT online cost?
Our TRT programme is built to support you long-term, with regular blood tests, clinician check-ins, and treatment adjustments where needed. The type of treatment and formulation you may be prescribed will be determined by a clinician following assessment.
INJECTABLE TRT
From £129/month
Self-administered 2-3 times per week
All follow-up blood tests included
All doctor consultations included
Injection supplies provided
ORAL TRT
From £89/month
Taken daily
All follow-up blood tests included
All doctor consultations included
TOPICAL TRT
From £99/month
Applied daily
All follow-up blood tests included
All doctor consultations included
Results
What results to expect when you start TRT
Clinical studies have observed that as testosterone levels increase, some men report gradual improvements in areas such as energy, mood and sexual wellbeing over time. Changes don’t happen overnight, and everyone responds differently, but treatment is designed to support steady, clinically-monitored progress.4
Month 1-3
Higher libido
Stronger erections
Improved mood and energy
Month 3-6
Higher strength and endurance
Fat loss
Motivation and mental clarity
Month 6 onwards
Faster recovery
Ongoing reduction in visceral fat
Bone strength
Who is eligible for TRT?
To be considered eligible for TRT, you must meet our criteria. Below are the testosterone level ranges to look out for after your Venous Blood Test.
While some clinics follow guidance that focuses on a threshold of 12 nmol/L, we know that some men can still experience symptoms even when their levels sit above that number. That’s why we look at your symptoms, your health history, and your blood results together, so any decision about treatment is thoughtful, balanced, and right for you.2
| Level (nmol/L) | Zone | Action |
|---|---|---|
| >15 | Normal | TRT is usually not recommended unless free testosterone levels are low and symptoms are present. |
| <15 | Low | Testosterone deficiency is likely. If you’re experiencing symptoms, TRT may be advised. |
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
FAQS
Your questions answered
Knowledge
Testosterone: what you need to know
References
*The figures below are based on aggregated, anonymised internal patient data from men prescribed testosterone therapy following clinician assessment. They reflect average observed changes over the first month of treatment. Individual responses vary, and not everyone will experience the same results.
**Based on the most up-to-date prices of the top 6 private clinics offering testosterone services in the UK.
Araujo AB, Esche GR, Kupelian V, O’Donnell AB, Travison TG, Williams RE, et al. Prevalence of symptomatic androgen deficiency in men. The journal of clinical endocrinology and metabolism. 2007;92(11): 4241–4247.
Internal Numan data
Dandona P, Dhindsa S, Ghanim H, Saad F. Mechanisms underlying the metabolic actions of testosterone in humans: A narrative review. Diabetes Obes Metab. 2021;23(1):18–28.
El-Osta A, Liu VN, Huang D, Foster J, Johnson H, Alaa A, et al. A cross-sectional survey of experiences and outcomes of using testosterone replacement therapy in UK men. Translational andrology and urology. 2025;14(5): 1295–1307
Barbonetti A, D’Andrea S, Francavilla S. Testosterone replacement therapy. Andrology. 2020;8(6): 1551–1566.
Sizar O, Leslie SW, Schwartz J. Male hypogonadism. In: StatPearls. Treasure Island (FL): StatPearls Publishing; 2025.
Medically reviewed by Hassan Thwaini
Clinical Pharmacist and Copywriter, Master of Pharmacy (MPharm)
Check your testosterone
Experiencing decreased libido, fatigue, or increased body fat? You might have low testosterone. Check if low-T is affecting you today.
Medically reviewed: