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Dihydrotestosterone
99.00
This test measures Dihydrotestosterone (DHT), a potent form of testosterone. Abnormal levels are linked to hair loss, acne, PCOS, and prostate concerns.
Turnaround time
10 days
Biomarkers count
1
Same-Day Appointments
UKAS Accredited Labs
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Under 18? Patients under 18 can only be seen at GB Medlabs and Clinilabs, Monday to Friday only.
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Details about Dihydrotestosterone
What is a Dihydrotestosterone test?
A Dihydrotestosterone (DHT) test measures the level of DHT in your blood. DHT is produced when testosterone is converted by the enzyme 5-alpha reductase and is one of the most biologically active androgens in the body.
DHT plays a key role in hair follicles, skin oil production, prostate tissue, and male and female hormonal balance.
Why do I need a DHT test?
High or low DHT levels can cause visible symptoms, especially related to hair, skin, and hormone imbalance.
Reasons for testing include:
• Hair thinning or male/female pattern hair loss
• Acne or oily skin
• PCOS symptoms
• Prostate health monitoring
• Low libido
• Hormonal imbalance symptoms
• Monitoring hormone therapy
Symptoms that may prompt testing include:
• Receding hairline
• Excess facial/body hair (women)
• Enlarged prostate symptoms
• Persistent acne
Benefits of the test
1. Assesses cause of hair loss
2. Helps investigate acne and oily skin
3. Supports PCOS assessment
4. Useful for prostate health monitoring
5. Evaluates androgen balance
6. Helps guide hormone therapy decisions
7. Links testosterone conversion activity
8. Provides insight into visible hormonal effects
Expanded benefit explanation
DHT is often responsible for the visible effects of androgens. Measuring it provides clarity when testosterone levels alone do not explain symptoms.
Step-by-step — How testing works
We offer two UK-wide testing options:
Clinic testing
• Choose nearest UK clinic
• Blood sample collected
• Laboratory analysis performed
• Results securely returned
Home visit (+£60)
• Phlebotomist visits you
• Blood sample collected safely
• Sample sent to lab
• Results delivered confidentially
Your results explained
Low levels
May indicate low androgen activity or reduced testosterone conversion.
Normal levels
Indicates balanced androgen metabolism.
High levels
Often linked to hair loss, acne, PCOS, or prostate stimulation.
How It Works
Simple steps to get your results
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Book Online
Choose your test online and book in seconds. Select your preferred clinic location or home visit option.
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Visit or Test at Home
Attend one of our UK or London clinics, arrange a home nurse visit, or use a finger-prick kit where available.
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Get Your Results
Your sample is analysed by accredited UK laboratories, with secure results delivered directly to you.
Take control of your health with London Blood Tests
WhatsApp UsHow to Prepare for Your Test
Follow these guidelines for accurate results
Sample Timing
Where possible, attend your blood test between 7am and 12pm. Please wait until any short-term illness or infection has fully resolved before testing. Avoid intense exercise for 24–48 hours beforehand, as this can affect certain markers.
Fasting & Hydration
Fasting is not always required, but some tests may recommend it. If fasting is advised, avoid food for 8–12 hours before your appointment and drink water only. Stay well hydrated, as this helps with sample collection and accuracy.
Medications & Supplements
Continue prescribed medications unless advised otherwise by your clinician. Avoid vitamin, mineral, or biotin supplements for at least 24–48 hours before your test, as these can interfere with results. If you are unsure about any medication or supplement, please let us know before your appointment.
Hormones & Menstrual Cycle
For hormone-related tests, timing within your menstrual cycle may be important. If relevant, follow any specific guidance provided on your test page.
If you have any questions or special circumstances, our team is happy to advise before your appointment.
Frequently Asked Questions
It measures blood levels of dihydrotestosterone, a potent androgen derived from testosterone.
Yes. DHT binds more strongly to androgen receptors and has greater biological activity.
No fasting is required.
Yes. Finasteride, dutasteride, and hormone therapies can lower DHT levels.
Yes. Elevated DHT is a key driver of androgenic alopecia.
Yes. High DHT can contribute to acne, hair thinning, or hirsutism in women.
Yes. We offer at-home phlebotomy blood draws across multiple UK locations.
Testing is performed in UKAS-accredited laboratories using validated methods.
Results are typically available within 10 business days.
A GP consultation is optional, but recommended if results are abnormal.
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