GenderGP Hormones & Kidney Home Test Kit
Testosterone and Estrogen Levels Assessment, with a kidney function test
GenderGP Hormones & Kidney Home Test Kit
Testosterone and Estrogen Levels Assessment, with a kidney function test
£239.00
Includes FREE delivery!
When you are on HRT, it is not always obvious whether your dose is in the right range, or whether changes you feel are related to treatment, stress, sleep, or something else. Symptoms can be nonspecific. Clear numbers you can track over time often bring the certainty.
This test measures testosterone and oestrogen (estradiol) alongside kidney function and key electrolytes, including creatinine, eGFR, urea, sodium, potassium, and chloride. It is designed to help you monitor treatment response while keeping a close, practical eye on kidney health.
Your results provide a grounded baseline and a way to spot meaningful change early. If you want objective data to support ongoing HRT monitoring, this test is a sensible next step.
This test is offered in collaboration with GenderGP, and you should discuss your test program with them before purchasing.
Upon purchase, your data and results are shared with GenderGP.
This test includes our Nurse Home Visit (Mobile Centrifuge) service at no additional charge!
What the GenderGP Hormones & Kidney test is for
When you are on hormone therapy, it is not always clear whether a change in mood, energy, sleep, or body composition reflects dosage, timing, stress, or something else. Symptoms can be non-specific, and relying on how you feel alone can make it hard to stay confident in your plan. This home blood test is designed to give you objective numbers you can track over time, so decisions about ongoing care are based on evidence rather than guesswork.
The GenderGP Hormones & Kidney panel measures key hormone levels, including testosterone and oestrogen (estradiol), alongside a focused review of kidney function and electrolytes. Kidney markers such as creatinine, eGFR and urea, plus electrolytes like sodium, potassium, and chloride, help you understand how well your kidneys are filtering and maintaining fluid and mineral balance. These results can be useful because hormone therapy, as well as hydration status, diet, and certain medications, can influence kidney and electrolyte readings. Seeing the full picture together supports safer monitoring.
This test is commonly used in the context of trans healthcare, where consistent hormone monitoring is part of responsible, individualised treatment. It helps you establish a baseline, check whether levels are broadly in range for your intended regimen, and spot meaningful shifts early. If you want clearer reassurance between appointments, or you are adjusting dose under clinical guidance, testing from home with a home test kit can be a practical way to stay informed.
Samples are processed by a UKAS-accredited laboratory, giving you results that are suitable for ongoing monitoring and sharing with your clinician if needed.
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What's included in your test?
Your test kit will contain the following sample types which the laboratory will use to test your sample:
The following sample guidance is required for this test, please follow carefully:
- Your sample should be collected in the morning in a fasted state: i.e. without eating or drinking anything except water for 8 - 12 hours beforehand.
- If you use hormone infused hand creams, gels or sprays within 72 hours before collecting your sample, there is a risk of sample contamination. If your treatment cannot be paused for 72 hours, wear gloves when applying the treatment and avoid contact with the hand from which the sample will be collected from. Additionally, it is crucial to thoroughly wash your hands before you collect your sample.
- Your sample should be collected between 7 - 10 a.m when testosterone levels will naturally be at their highest.
Need more details?
Learn how the self collection process works, what's in the kit, and your options for clinic and home nurses visits.
How this works ›Why take the GenderGP Hormones & Kidney test?
Designed for clients of GenderGP who are on HRT and want objective numbers to support ongoing monitoring.
Best suited if you are checking whether testosterone and oestradiol levels are broadly in range for your current dose, or if you are adjusting treatment under clinical guidance and want a clear baseline to compare against.
Also appropriate if you want to keep a practical eye on kidney function and electrolytes while on treatment, so potential changes can be picked up early and discussed with your clinician.
- Are starting, adjusting, or maintaining gender-affirming hormone therapy and want to monitor testosterone and estradiol levels
- Are starting, restarting, or adjusting gender-affirming hormones and want recent baseline/follow-up blood results to guide dosing discussions
- Are using gender-affirming hormone therapy and want to check testosterone and oestrogen (estradiol) levels against your treatment plan
- Have had a change in symptoms and want to check whether your hormone levels match how you feel
- Want a baseline testosterone and estradiol result to support dosing conversations and follow-up with a clinician
- Want to check essential kidney filtration markers (creatinine, eGFR, urea) as part of a general health baseline
- Want to monitor kidney function and electrolytes (e.g., sodium, potassium, chloride) while on hormone therapy to pick up changes early and discuss with your clinician
- Want to track hormone level trends over time between appointments rather than rely on guesswork
Order your GenderGP Hormones & Kidney test and get the insights you need to feel your best.
Expert Analysis In An Accredited Laboratory
Once your sample reaches the UKAS-accredited lab, the magic begins. But this isn't simple science – we insist on state-of-the-art automated technology to ensure your results are processed with unmatched accuracy and efficiency.
- UKCA marked test kits for full regulatory compliance.
- IVDD certified diagnostics for total quality reassurance.
- Medically led UKAS accredited laboratory testing for accurate results.
Dr. Kate Bishop
Chief Scientific Officer
"All testing is conducted by healthcare professionals in a medically-led laboratory. Accredited lab testing is the best way to be confident that your test results are accurate. Get tested now for complete reassurance."
Delivery and results
The GenderGP Hormones & Kidney test includes our Nurse Home Visit (Mobile Centrifuge) service for sample collection. Kits are posted to your home free of charge.
Easily sampling from home or at a clinic offers you the most convenient and stress-free way to get tested. Your test also includes free 24 hour tracked sample return to the laboratory.
1. Order Your Test
2. Post Your Samples
3. Get Your Results
Bicarbonate (Bicarb) is both excreted and reabsorbed by your kidneys.
It serves to help maintain the acidity of your blood and tissues and interacts with other electrolytes (e.g. sodium, potassium, and chloride) to maintain optimum cellular chemistry.
The measurement of bicarbonate allows the estimation of your blood's acid-base balance and is an indicator of kidney performance.
| Test | Result | Reference | Status |
|---|---|---|---|
| Bicarbonate | 24mmol/l | 22 - 29 | Normal |
24 Bicarbonate (Bicarb) is both excreted and reabsorbed by your kidneys. It serves to help maintain the acidity of your blood and tissues and interacts with other electrolytes (e.g. sodium, potassium, and chloride) to maintain optimum cellu | |||
| Chloride | 100mmol/L | 98 - 107 | Normal |
| Creatinine | 87umol/L | 66 - 112 | Normal |
| Potassium | 4.7mmol/L | 3.5 - 5.1 | Normal |
| Sodium | 139mmol/L | 135 - 145 | Normal |
| Urea | 5.2mmol/L | 1.7 - 8.3 | Normal |
| Estimated Glomerular Filtration Rate | 82mL/min | >90 | Low |
Traffic Light System Instantly see which health markers are in a healthy range (green), borderline (yellow), or need attention (red).
Detailed Explanations Each marker includes an overview of its role in your body, what it means to have high or low levels, and actionable tips to improve.
Tracked Changes See how your health markers have changed over time, track your progress, and optimise your health.
Expert Guidance We don't just hand over data – we empower you with insights to make informed decisions about your health.
What happens after your results?
We Explain your lab report by adding clarity and context, helping you understand your results.
Advanced AI summarises key findings, highlights patterns across markers, and explains what results like these are commonly associated with.
Testing shows where you are today. Prevent helps you focus on where you want to be.
Using your test results, metrics and symptoms, you can gain further insights to achieve your health goals.
Connect with expert medical partners focused on helping you achieve better health.
We are highly selective over who we choose to work with, so you can be confident you are in good hands.
What people say about this test
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Frequently Asked Questions
Home test kits contain full instructions and everything you need to safely collect and return your sample. Please see the following details relating to this test below:
- Your sample should be collected in the morning in a fasted state: i.e. without eating or drinking anything except water for 8 - 12 hours beforehand.
- If you use hormone infused hand creams, gels or sprays within 72 hours before collecting your sample, there is a risk of sample contamination. If your treatment cannot be paused for 72 hours, wear gloves when applying the treatment and avoid contact with the hand from which the sample will be collected from. Additionally, it is crucial to thoroughly wash your hands before you collect your sample.
- Your sample should be collected between 7 - 10 a.m when testosterone levels will naturally be at their highest.
We also have a guide on how to collect a high quality sample which you may find useful.
The Vitall test is available online for just £239.00. Your home test kit will be dispatched by free first class post for delivery to your door.
When you checkout to buy your GenderGP Hormones & Kidney test online we also offer additional options, including:
- Visit the Patient Reception in central London for just £35. Your GenderGP Hormones & Kidney test sample can be collected by a qualified nurse for immediate analysis.
- Have a nurse visit you to collect the sample for your GenderGP Hormones & Kidney test, this is nationwide for just £79.
Whichever option you choose at checkout, buying the best GenderGP Hormones & Kidney test online in the UK with Vitall ensures high quality results from an accredited laboratory.
Take control of your health today with one of Vitall’s home blood tests.
Articles About GenderGP Hormones & Kidney Testing
View all articles ›Content medically reviewed by
Dr. Shahzaib Ahmad MBBS, BSc, MRCP, FRCA, FFICM
Clinical Advisor|GMC 7495062|Personal Profile
£239.00
All Testing Is Conducted In UKAS Accredited Laboratories.
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