Documents & Testing

Why this page exists. Most buyers ask the same three questions before a first order: what documents do I get, what exactly is in them, and how do I know they are real? This page answers all three — including what we do not claim.

1. What you receive

Documentation is issued per batch and per order. Tell us at the quotation stage which documents you need and we confirm what can be provided before payment, so there are no surprises after the goods ship.

Certificate of analysis

The main document. One per product per batch, showing batch number, product name, specification, test results and release date.

HPLC chromatogram

The purity trace: retention time, the main peak and the percentage purity calculated from peak area.

MS identity confirmation

The mass spectrum, confirming the molecular mass matches the stated peptide and distinguishing it from a similar compound.

2. What is inside a certificate of analysis

Batch / lot number	Matches the number printed on the vial label, so a COA can be tied to the physical goods you received
Product & code	Product name, strength and our catalogue code (for example GHK-Cu, CU100)
Appearance	Physical description of the powder or solution as received
Purity (HPLC)	Percentage purity by high-performance liquid chromatography; 98% or higher on standard products
Identity (MS)	Confirmation of molecular identity by mass spectrometry
Test method	The analytical method used, so your own laboratory can compare like for like
Release date	When the batch was tested and released

3. How to verify a batch independently

We would rather you check than take our word for it. Three ways, in increasing order of cost:

Match the batch number. The number on the vial label must appear on the COA. If a supplier sends a COA that does not match your vials, treat that as a red flag.
Send a sample to your own laboratory. Ask for a sample before a bulk order and have it tested independently. We can also arrange third-party testing for larger orders.
Ask us for the raw data. Tell us which product and batch you are evaluating and we will send the chromatogram and spectrum for that batch.

4. What we do not claim

Being clear about this makes the rest of the page more useful:

We are a wholesale supplier, not the factory. Where a product is made by a partner facility, the batch documentation is issued by that facility. We tell you which is which if it matters for your market.
We do not provide dosing, medical or clinical guidance, and we do not supply documentation claiming a product is approved for human use.
We do not sell to consumers. Buyers are responsible for compliance, licensing and import requirements in their own market.
We do not publish a fixed price list. Pricing depends on quantity, destination and freight, so it is quoted per order.

5. Requesting documentation

Tell us the product code and, if you already have an order, the batch number. We will send the documents that apply to that batch.

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