---
title: Labelling Requirements
description: "To make sure your sample reaches us safely, please follow these steps:\n\nComplete and include all requisition forms provided. We cannot process your sample without them.\n\nBook your courier at least 1 working day in advance of the date you need the collection.\n\nEnsure all paperwork and specimen tubes are clearly labelled with the patient’s full name, date of birth, and the date the sample was taken at a minimum. Clients are responsible for ensuring their samples are labelled correctly. Please check your instructions for any additional labelling recommendations.\n\nPlace your sample container in the biohazard or ziplock bag provided, along with the absorbent material supplied.\n\nPack your sample securely in the original box provided with your test. The sample should be safely enclosed in the box—not just loosely placed in the DHL bag. If your original box isn’t available, any sturdy cardboard box will work.\n\nKeep the DHL bag flat and attach the pre-paid return label to the back side only, where the outer pocket is located.\n\nPlace your boxed sample into the DHL bag and seal it. Keep the bag as flat and spacious as possible to avoid covering any wording.\n\nThings to avoid:\n\nDo not ship your sample on a Friday or the day before a UK bank holiday.\n\nDo not put the DHL label inside your box or packaging.\n\nDo not send your sample without a box.\n\nDo not place any forms in the outer pocket or loose inside the DHL bag.\n\nDo not cover any markings, including:\n\nUN3373 diamond\n\nHeart symbol\n\nPink line with TDX wording\n\nBiological Substance Category B wording\n\nOVERPACK\n\nMEDICAL EXPRESS\n\nDHL EXPRESS\n\nImportant: If your label covers any of the above, DHL will reject the package and return it to you. Examples of incorrectly labelled packages are shown on the opposite page for guidance."
---

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February 10, 2026

# Labelling Requirements

---

### Labelling and Shipping Your Sample

To help your sample reach us safely and avoid delays, please follow these labelling and shipping steps carefully:

- **Complete all forms**  
  Include all requisition forms provided with your kit. We cannot process your sample without them.
- **Label your samples correctly**  
  Ensure every sample tube and piece of paperwork is clearly labelled with:
  
    - **Full name**
    - **Date of birth**
    - **Date the sample was taken**

Clients are responsible for labelling their samples accurately. Check your kit instructions for any additional labelling recommendations.

- **Use the provided bags and packaging**  
  Place your sample in the **biohazard or ziplock bag** supplied, with the absorbent material included. Pack the sample securely in the **original kit box** (or another sturdy box if needed).
- **Attach the shipping label correctly**  
  Keep the DHL bag flat and place the **pre-paid return label in the plastic sleeve on the back side only**. **Do not stick the label directly on the bag.**
- **Seal and prepare for return**  
  Place your boxed sample inside the DHL bag and **seal it carefully**. Keep the bag flat and spacious to avoid covering any markings.

### Things to Avoid

- Do not ship on a **Friday** or the day before a **UK bank holiday**
- Do not place the **DHL label inside the box or bag**
- Do not send your sample **without a box**
- Do not place forms **loose inside the bag or in the outer sleeve**
- Do not cover any markings, including:
  
    - UN3373 diamond
    - Heart symbol
    - Pink line with TDX wording
    - Biological Substance Category B wording
    - OVERPACK
    - MEDICAL EXPRESS
    - DHL EXPRESS

**Important:** If the label covers any of the above, DHL may reject your package and return it to you.

### ✅ Labelling & Shipping Checklist

Before returning your sample, confirm:

- ✅ All requisition forms completed and included
- ✅ Sample tubes and paperwork labelled with **full name, DOB, collection date**
- ✅ Sample placed in **biohazard/ziplock bag** with absorbent material
- ✅ Sample securely packed in original or sturdy box
- ✅ DHL label placed in **plastic sleeve on back** of shipping bag
- ✅ Bag sealed flat, without covering any markings
- ✅ Shipment scheduled Mon–Thu for UK returns

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