Covid-19 UK International Arrivals Testing Day 2 and 8

Mare St Clinic is now offering COVID-19 Day 2 and Day 8 testing for International Arrivals.

We have passed the assurance process put in place by the UK Government and are now an authorized supplier as listed on the website.

The test is not suitable for those who are travelling fom a Red List country or require Pre-Travel testing or wish to get tested under the Test To Release Scheme. Please click on the Covid-19 tab above to search our full range of Covid-19 tests available. 


Price: £189 (Including Postage and Royal Mail Pre-paid Tracked 24 Return Envelope)

What are the Day 2 and 8 Tests?

As of February 15th, people traveling to the United Kingdom from outside the Common Travel Area and not traveling from a red list country must:

  • Self-isolate for 10 days;

  • Take a compulsory RT-PCR home test on day 2 and on day 8 of their self-isolation (Travel Test Package);

  • Follow National Lockdown Rules.

Please see further information on the government website.

What to do before traveling to the United Kingdom?

Here is what you need to do before arriving in the United Kingdom:

  • Book and pay for your Day 2 and 8 tests, which will include the RT-PCR tests to be taken on day 2 and day 8 of your quarantine;

  • Complete a passenger locator form with details of where you will self-isolate when you arrive and with your Test Package booking reference number.

** The booking reference number will be supplied to you via a separate email once we have an order confirmation. 

The booking reference number will start with the Prefix: MARES followed by a 7 digits. 

e.g: MARES0000100

How does it work?

You will need to order your test package before your arrival to the UK, as you will need to provide your booking reference on your Passenger Locator Form.


The package includes 2 RT-PCR tests that you will receive at home. You will need to carefully follow the instructions of the self-swab and return your kits straight after using them.

  • The Day 2 test must be done on Day 2 of your self-isolation - results will be ready with 72 hours

  • The Day 8 test must be done on Day 8 of your self-isolation - results will be ready within 48 hours

  • Do both tests individually on the allocated days and send your kit back to our partnering UKAS accredited laboratory via the included return packaging.

Please note that these tests are not part of the Test to Release scheme. You will still need to finish your self-isolation period regardless of the results of your tests.

Where can I order my test?

You can now order your Day 2 and 8 tests with Mare St Clinic as we are on the Government’s list of providers.


Please note that you will still need to do your Day 8 test even if you take part in the Test to Release scheme and finish your self-isolation on day 6.


How Long does it take to get my results?

Please read the instructions included with your kit extremely carefully. Send the test back by Royal Mail Pre-paid Tracked 24 return envelope (Included) to the address on the instructions, or by any courier service that will deliver a Category B sample. Once the laboratory receives the test, the results will be available in 24 hours - 72 hours

Please send your results back securely in the packaging provided by placing them in a Royal Mail Priory post-box before Midday.  To find your closest Priority post-box, please visit  PLEASE NOTE PRIORITY POST BOX'S ARE NOT COLLECTED ON A SATURDAY OR SUNDAY

** Important Notice **

Please note, the demand for this home testing kit clinical service is high. Your testing kit will generally arrive within 2 working days if you order from us before 3 PM, however, they will always arrive within 3 working days from the date of your order.

Please read our T&C's before purchasing this product. If you proceed to "Order Now" below, you Read, Understood and agree to our Terms and Conditions.

Do you Require either a Day 2 or Day 8 test kit only?

Some traveler's may only require Day 2 or Day 8 test kits depending on their journey details, especially in they are within the UK for less than 10 day. 

You can purchase Day 2 and Day 8 test kits separately via our Online Store or click the button below.