




Self-collection at home Carrier Screening
Pre-conception screen of 1,008 genes for inherited recessive disease - for couples planning a pregnancy.
30-minute genetic counselling included with every test
NHS Genomic Medicine Service-aligned variant interpretation
At-home buccal swab included; an in-clinic blood draw is available (+£40)
Results within 17-21 working days of sample receipt
Saliva or blood? The same DNA, the same accuracy.
The logistics, simply.
Everything you need to know about shipping, blood draw, and suitability.
Kit delivery & logistics
Kit delivery & logistics
1. Get your kit from us. Free delivery of your test kit, dispatched by next-day delivery after your included 30-minute genetic counsellor consultation (video or phone) and once your test choice is confirmed. Changed your mind? Return the kit unused within 30 days at no charge.
2. Easy returns. After sample collection, send your sample in the pre-paid bag to the nearest depot (details in your email). Turnaround is counted in working days from when your sample reaches the laboratory.
Sample / draw options
Sample / draw options
At-home cheek swab : At-home cheek swab kit; you collect the sample yourself and post it back.
Blood draw : Standard venous blood draw, performed at a clinic or by a mobile phlebotomist.
Test suitability
Test suitability
Genetic testing with Jeen Health is suitable for adults who have completed a pre-test consultation with one of our genetic counsellors - in clinic, over video, or by phone.
Genetic testing with Jeen Health is only available to individuals aged 18 and over.
Three steps. That's it.
Simple, clinician-supported steps to take your test with Jeen.
Talk to a clinician
Book your included 30-minute consultation with our genetic counsellor (video or phone). Confirm the test that's right for you.
Consent + collect
Complete your consent form online, receive your kit, and collect your sample at home or via a clinic of your choice.
Results + follow-up
Your results are reviewed by your genetic counsellor. We share them with you securely, and book a follow-up consultation with onward referrals if your result is high-risk.
Compare every option we offer.
From the basic panel to our most advanced option.
200+ collection points across the UK
A simple, low-cost option with flexible scheduling. For many patients, this is the quickest and most practical way to complete the test.
Clinics available in Belfast, Birmingham, Bournemouth, Brighton, Bristol, Cambridge, Cardiff, Coventry, Derby, Edinburgh, Glasgow, Hull, Leeds, Leicester, Liverpool, London, Manchester, Newcastle, Nottingham, Oxford, Reading, Royal Tunbridge Wells, Southampton, Swindon, and York.
This map is served by Google Maps, which sets its own cookies on your device.
Partner clinics are also listed below. How we use cookies
How to collect blood with the Tasso device
The Tasso device is a small, single-use kit that collects a blood sample from your upper arm without a needle in your vein. A gentle button-press opens tiny channels just under the skin, and the sample is drawn into a collection tube. It takes a few minutes at home - no clinic visit, no phlebotomist. Follow the four steps below to collect your sample correctly.
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1Attach the collection tube
Take the green-capped collection tube from your kit and attach it to the base of the Tasso device until it clicks into place.
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2Place on your shoulder and activate
Press the device firmly onto your clean, dry upper shoulder so it sticks, then press the red button to begin collection. Keep it in place and let the tube fill.
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3Check the blood level, then remove the tube
Fill to at least 200 above the 400 mark - close to the top, but do not overfill. Once there is enough blood, remove the collection tube from the device.
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4Close, shake and prepare for return
Close the green cap securely and shake the tube gently to mix. Complete the label, seal the tube inside the biohazard bag, and return it using the prepaid packaging in your kit. Don't forget to include your completed test requisition form in the box.
Post it back any day of the week. Your results take the same time as with our other collection methods - the Tasso kit is simply another way to give your sample at home.
Please note: the Tasso blood collection device may very rarely leave a permanent mark of approximately 2 mm on the shoulder. Although the mark is usually barely visible, please consider this before selecting this blood collection option.
Frequently asked questions.
How much does carrier screening cost?
How is the sample for carrier screening collected?
How long do carrier-screening results take?
Should I do carrier screening before pregnancy?
Do I need a GP referral for carrier screening?
All 1,008 genes by category
Genes grouped by the clinical area they're associated with. Click any underlined symbol to read the gene's plain-English overview on Jeen Library - or browse per-gene carrier frequencies for population-stratified rates.
Talk to a specialist.
Our team is here to help. Whether you're curious about testing, your results, or what's right for you - we're a message away.
Book a consultationBefore you choose the Tasso kit
You'll collect a small blood sample yourself at home with the Tasso device and post it back - any day of the week. Your results take the same time as with our other collection methods.