short answer
Hong Kong is a separate customs territory, so a parcel from mainland China to a Hong Kong lab crosses a customs border. Use a courier that handles cross-border shipments, declare the contents accurately as samples for laboratory analysis, pack unopened vials with a custody form, and keep the tracking number. When you accept our quote, we send your sample numbers and the delivery address.
How to send samples from China to Hong Kong: the steps
Sending peptide samples from mainland China to a lab in Hong Kong takes six steps. The table gives the order; the sections below explain each one.
| Step | What to do | Why it matters |
|---|---|---|
| 1. Get a quote | Ask the lab for a quote with the products, label claims, lots and tests | The quote sets the number of vials; when you accept it, the lab sends your sample numbers and the delivery address |
| 2. Choose a courier | Pick a courier that handles cross-border parcels and gives a tracking number | The parcel crosses a customs border |
| 3. Declare the contents | Describe the parcel accurately as samples for laboratory analysis | An accurate declaration is your responsibility, and it keeps the parcel moving |
| 4. Pack the vials | Unopened, numbered, upright, bagged and padded | The lab can only test what arrives intact |
| 5. Add the custody form | Fill it in by hand and put it in the parcel | The dates on your report come from this record |
| 6. Send the tracking number | Write it on the form and send it to the lab | The lab can match the parcel to your order |
Hong Kong is a separate customs territory
Article 116 of the Basic Law says the Hong Kong Special Administrative Region shall be a separate customs territory. In practice, a parcel from Shenzhen, Guangzhou or Shanghai to Hong Kong leaves one customs territory and enters another, even though both are in China.
That has two consequences for samples. First, the parcel goes through export and import handling, so the courier needs a clear description of the contents. Second, the courier’s own rules apply on top of any customs rules. Couriers publish lists of items they will and will not carry, and those lists can change.
This guide does not give customs or import advice. Rules depend on the product and can change, so check them with the courier before you ship. If the courier says it will not carry the parcel as described, do not change the description to get it accepted. Ask the courier what it needs, or contact us.
Choosing a courier from Shenzhen to Hong Kong
Several kinds of courier carry parcels from the mainland to Hong Kong. Options include SF Express, the international express networks such as DHL, FedEx and UPS, and EMS. Choose on these points:
- It accepts cross-border parcels to Hong Kong. A domestic service may not cover Hong Kong, so check the service you book.
- It gives a tracking number. Without one, neither you nor the lab can see where the parcel is.
- It delivers to a business address. We send the delivery address when you accept your quote.
- Its rules allow the contents. Read its list of restricted items for chemical or laboratory samples before you book.
We do not compare transit times or fees here, because they change and differ by service. Check them on each courier’s own site. Avoid leaving a packed parcel in a hot car or a sunny window while you wait for collection.
How to declare the contents
Describe the parcel as what it is. A clear declaration names:
- What it is. For example: lyophilised peptide samples for laboratory analysis.
- The products. The names as printed on the vials.
- The quantity. The number of vials.
- Any value the courier asks for. Use the form the courier gives you.
Never under-describe the contents, call them something else, or split a shipment to avoid checks. An accurate description protects you and the samples. Keep a copy of the courier’s paperwork with your records.
Packing the vials
The packing rules on our how it works page apply to every parcel, wherever it starts:
- Unopened. Vials sealed, as sold.
- Numbered. Mark each vial with its sample number. Keep the product label on. If you want the label claim withheld from the analyst, cover only the claim.
- Extra vials, sealed. Sterility and endotoxin each need their own unopened vials. Your quote says how many.
- Upright, bagged, padded. Seal the vials in a bag and cushion them against knocks.
- Custody form inside. Printed and filled in by hand.
- Tracked. Ship with tracking and send us the number.
For a longer guide that applies from any country, see how to send peptides for testing. To work out how many vials each test needs, see how many vials a full test needs.
The custody form
The sample custody form fits on one A4 or US Letter page. Print it, fill it in by hand and put it in the parcel. It records:
| Section | What you write |
|---|---|
| Sender | Quote reference, the name to print on the report, a contact email |
| Samples | Sample number, product name as labelled, label claim or “withheld”, lot, number of vials, container |
| Packing | Seals intact, packed by, date, carrier, tracking number, signature |
| For lab use | Left blank: the lab records who received the parcel, when, and its condition |
Keep a copy, or a photo of the filled form, for yourself. If the parcel is delayed or questioned, the form and the tracking number show what you sent and when.
Tracking and arrival
Once the courier collects the parcel, send us the tracking number. Follow the parcel on the courier’s own website or app. When it arrives, the lab logs it against your quote and photographs each vial as received. That photo appears in the report, so you can compare the cap, fill and printed lot with your own vials.
Sending from outside mainland China
The same steps work from the UK, Europe, the US or elsewhere in Asia. Use a tracked international courier, describe the contents accurately, pack unopened vials with the custody form, and send the tracking number. Check the courier’s rules and the rules of the country you are sending from. You are responsible for making sure you may legally send the sample to our lab; see our research use terms.
What HK Analytical sends you
Our lab is in Hong Kong. When you request a quote and accept it, we send your sample numbers and the delivery address. The custody form is on our site to print. Results within days of receipt. Sterility (USP <71>, 14 days) is the one test that takes 14 days, because the method incubates for 14 days. Every report is a signed record with a private link, and it carries our photo of the vial as received. For the full picture of the lab, see peptide testing in Hong Kong.
Questions
Which courier should I use from Shenzhen to Hong Kong?
Any courier that accepts parcels from the mainland to Hong Kong and gives you a tracking number. Options include SF Express, the international express networks such as DHL, FedEx and UPS, and EMS. Before you book, check the courier's own rules on what it will carry and which paperwork it needs. We do not compare couriers' prices or transit times.
How should I declare peptide samples sent to Hong Kong?
Describe them accurately: what they are, for example lyophilised peptide samples for laboratory analysis, the product names as labelled, the number of vials and any value the courier asks for. Never under-describe or mislabel the contents. Follow the courier's paperwork and keep a copy. We do not give customs or import advice.
Can I send a parcel to Hong Kong from the UK or another country?
Yes. The same steps apply: a tracked courier, an accurate declaration, unopened vials, the custody form and the tracking number. Check the courier's rules and your own country's rules for sending samples abroad. You are responsible for making sure you may legally send the sample to our lab.
How do I track a parcel to Hong Kong?
Use the tracking number the courier gives you on the courier's own website or app. Write the number on the custody form and send it to us, so we can match the parcel to your quote when it arrives.
Do I need to open the vials before I send them?
No. Send vials unopened, as they were sold, so the sample stays as it was. Endotoxin and sterility each need their own unopened vials, and your quote says how many to send.
Sources
- Basic Law of Hong Kong, Chapter V (Article 116)
- Commerce and Economic Development Bureau: External commercial relations
Based on each lab’s public website and sample reports, checked October 2026. Prices, methods and turnaround change; check with the lab before you rely on them. Spotted an error? Write to contact@hkanalytical.com.