1,25-dihydroxyvitamin D (calcitriol)
This test measures 1,25-dihydroxyvitamin D, the biologically active form of vitamin D. It is used to investigate calcium imbalance, kidney disease and...
DHEA Sulphate
58.00
This test measures DHEA-S, a key adrenal hormone linked to stress and hormone balance. It helps assess fatigue, PCOS, and adrenal health.
Turnaround time
1-2 days
Biomarkers count
1
Same-Day Appointments
UKAS Accredited Labs
Book your test
Under 18? Patients under 18 can only be seen at GB Medlabs and Clinilabs, Monday to Friday only.
1
Email
2
Service
3
Details
4
Confirm
{{ emailError }}
Choose Service Type
Home visit
Professional phlebotomist comes to you
+ £{{ home_visit_fee }}
In clinic
Visit our clinic for your test
{{ clinic_visit_fee > 0 ? '+ £' + clinic_visit_fee : 'Free' }}
Home Visit Details
{{ homeAddressError }}
{{ homeTimeError }}
Choose Clinic Option
Select a clinic:
{{ clinic.name }}
{{ clinic.full_address }}
{{ selectedClinic.name }}
{{ selectedClinic.full_address }}
Select a date
{{ timeSlotAlert }}
Select an hour
Available time slots: {{ timeSlots.length}}
{{ slot.preview }}
{{ selectedTime.preview }}
Loading add-ons...
{{ addOnError }}
No recommended add-ons available.
×
{{ addon.name }}
£{{ addon.price }}
{{ addon.excerpt }}
Selected
Selected ({{ selectedAddOns.length }})
£{{ addOnsTotal }}
- {{ sa.name }} £{{ sa.price }}
Included in total above.
Details about DHEA Sulphate
What is a DHEA Sulphate test?
A DHEA-S test measures the level of dehydroepiandrosterone sulphate in your blood, a hormone produced mainly by the adrenal glands. DHEA-S is a precursor to testosterone and oestrogen and plays an important role in stress response, energy levels, and hormonal balance.
Because DHEA-S levels decline with age and change with stress and adrenal function, this marker is useful in assessing adrenal health and hormone-related symptoms.
Why do I need a DHEA-S test?
Abnormal DHEA-S levels are commonly seen in adrenal dysfunction, chronic stress, PCOS, fatigue, and hormonal imbalance.
Reasons for testing include:
• Persistent fatigue or burnout
• Chronic stress symptoms
• Suspected adrenal dysfunction
• PCOS symptoms (acne, hair growth, irregular cycles)
• Low libido
• Hormonal imbalance
• Early ageing symptoms
• Monitoring hormone therapy
Symptoms that may prompt testing include:
• Low energy
• Brain fog
• Sleep problems
• Weight gain around abdomen
• Mood changes
Benefits of the test
1. Assesses adrenal gland function
2. Helps explain chronic fatigue and burnout
3. Supports PCOS investigation
4. Evaluates hormone precursor levels
5. Linked to ageing and vitality
6. Useful in stress-related disorders
7. Supports fertility and hormone balance assessment
8. Guides hormone optimisation
Expanded benefit explanation
DHEA-S provides insight into how well your adrenal glands are functioning and how stress may be affecting your hormonal health.
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 adrenal fatigue, chronic stress, or hormonal underactivity.
Typical UK range (adult female): 1.2–10 µmol/L
Typical UK range (adult male): 2.4–12 µmol/L
Normal levels
Indicate balanced adrenal and hormone precursor function.
High levels
May be seen in PCOS, adrenal overactivity, or androgen excess.
How It Works
Simple steps to get your results
1
Book Online
Choose your test online and book in seconds. Select your preferred clinic location or home visit option.
2
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.
3
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 DHEA sulphate, a stable adrenal hormone involved in energy, stress response, and sex hormone production.
No. Fasting is not required.
No. DHEA-S is a sulphated, more stable form and is preferred for testing.
Yes. DHEA supplements can significantly raise DHEA-S levels.
Yes. It’s commonly used to investigate PCOS, fertility issues, and androgen excess.
Yes. It helps assess adrenal androgen production and overall hormonal health.
Yes. We offer at-home phlebotomy blood draws across multiple UK locations.
Results are usually ready within 10 business days.
Only if advised by your clinician. Always disclose supplement use.
A GP consultation is optional, but recommended if results are outside the normal range.
Similar Products in Blood Testing
Discover more options in this category:
17-Hydroxyprogesterone
This test measures 17-hydroxyprogesterone, a hormone involved in cortisol production. It is used to assess adrenal function and diagnose congenital ad...
5 HIAA
The 5-HIAA (5-Hydroxyindoleacetic Acid) blood test measures the amount of 5-HIAA, a breakdown product of serotonin, in the bloodstream. Elevated level...
6-Thioguanine Nucleotides
This test measures 6-thioguanine nucleotide levels to monitor thiopurine medications. It helps optimise treatment effectiveness while reducing toxicit...
7 Sexually Transmitted Infections by PCR
This PCR screen detects seven common sexually transmitted infections with high accuracy. It identifies active infections even when symptoms are mild o...