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Return-to-Lab SELF - Patient to arrange own Courier: 24/7 drop-off, London SE16 4DG

CHHP Certific Certified Health Tests
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Where to return your Samples to...

With this option you can arrange your own courier or post to return samples to our lab. Sample drop off is 24/7 but strictly for Couriers only (not customers).

Unit 504 Cocoa Studios
The Biscuit Factory
100 Drummond Road
London, SE16 4DG

How / When to return your Samples to our Lab in time:

  • We strongly advise taking your Sample first thing in the morning
  • Samples MUST arrive to our London lab BEFORE 1pm latest for Same Day Certificate. 11am is even safer! We can't do anything about late deliveries - they may run over into the next morning of lab processing.
  • Our lab is in London - address above. We recommend...
  • The full address of the lab is labelled on every test kit return box for your convenience and detailed courier instructions can be emailed to you.


  • Patients / Customers are strictly NOT allowed on-site. Only professional couriers or Royal Mail are allowed to enter the drop off area.
  • Couriers accept the sample boxes that we send you. You cannot put our boxes in an envelope unless the envelope is properly UN3373 labelled - it is illegal to post or ship without a UN3373 warning clearly visible.
  • We cannot take any responsibility or take support enquires for return to lab issues if you arrange your own transport.

Instructions for Couriers