Canadian mail-in guide

How to mail a peptide sample for laboratory testing

Do not ship first and explain later. Start with an accepted request so the package, sample ID, method, and chain-of-custody record all agree.

Published August 21, 2026 · By Canada Peptide Testing

Use the accepted laboratory instructions for the sample itself. Canada Post’s packaging guidance covers general parcel protection; it does not establish whether a particular material is accepted for mailing.

1. Submit the analytical question

Provide the compound, nominal amount, sample form, selected tests, and any useful matrix or storage details. A chemist reviews whether the requested methods fit the material and confirms the minimum sample quantity.

2. Wait for acceptance

The laboratory issues a Canada Peptide Testing sample ID, packing slip, approved intake address, and any method-specific conditions. Do not use an address copied from an old order or a public web page.

3. Separate and protect each sample

Keep one sample per ID. Use a sealed primary container and protective secondary packaging suited to the material. Place the sample ID on the outer sample pouch as instructed, not where it can obscure or contaminate the primary closure.

4. Include the packing slip

The identifier on the container, packing slip, and online request must match. Do not include needles, syringes, biological specimens, leaking liquids, undeclared hazardous goods, or controlled substances.

5. Use tracked shipping

Retain the carrier tracking number. Clients are responsible for lawful classification, declaration, packaging, and shipping. Samples must be shipped from within Canada; shipments from outside the country are not accepted.

6. Follow intake online

Use the private sample ID and request email to check status. The workflow records request receipt, physical receipt, laboratory work, scientific review, and report release. The public COA registry does not expose the tracking email.