Rapid Lateral Flow Test 

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Product Description

Our Rapid Antigen Test (Lateral Flow Device LFD) is a simple, easy-to-use test, that is approved for entry into the UK. You must take this test ON OR BEFORE DAY 2 of entering the UK. Once you've taken the test, you have to upload photographic evidence of your test to get the official doctor signed report.


Your Rainbow Labs order number is the same as the DHSC Reference number for UK Passenger Locator Form.

Some countries accept this Lateral Flow Device/Rapid Antigen Test as a Fit to Fly test or travel test, please check country-specific requirements.

We use the FlowFlex, Healgen and Hughes Covid-19 Rapid Antigen Test

  • 99% specificity

  • 97% sensitivity

IMPORTANT: Please read below information carefully to avoid delays.

Step 1: Order your test kit online.

Step 2: Collect your test kit from your chosen Click & Collect location

Step 3: Follow the Instructional Leaflet and video to perform the antigen test sample collection at home.

Step 4: After 15 minutes, upload a clear close-up picture of your test cassette along with a handwritten note containing your DHSC Reference Number by clicking 'Activate Test' at the top right corner of the website or by visiting

Step 5: Once you have uploaded the picture and entered all the details correctly, you will receive your official report within 4-6 hours (during business hours) of the upload.

On rare occasions an antigen test can give an "inconclusive" result, particularly if the testing instructions are not followed correctly. In these circumstances, you will need to pick up another test from the same location.

By continuing to complete your purchase of a test kit, you declare that you have read and understood, that you agree to the Rainbow Labs’ Terms & Conditions, Privacy Policy, Refund Policy and Shipping Information, and that you consent to the processing of your health data for the purposes related to the analysis of your sample and for your details to be shared with NHS Test and Trace, if needed.