Certificate of analysis (COA): every PEPTALIAS supplier report in one place

Each PDF here comes from the manufacturer, most often HK Qiangtai Technology Co., Ltd. It records what the maker measured on a named batch against its own limits; it is not an independent test and not a test of the vial you receive.

1. Purity: The main number, usually by HPLC, which separates the sample into peaks and reports the share assigned to the main peak. It describes the chromatogram, not the whole powder mass or proof of identity. A limit of at least 98% with a result of 99.4% is a clear pass.
2. Identity: A mass spectrometry row (LC-MS or ESI-MS) showing the measured mass matches the expected mass. Purity says how clean the main peak is; identity says what it is.
3. Batch number and dates: Check the date type printed: expiry, shelf life or re-test date. Then match the batch to your vial label.
4. Loss on drying: Weight lost on heating, which includes water and any other volatile material. Water content alone needs a water-specific test such as Karl Fischer.
5. Safety rows: Heavy metals, microbial count and endotoxins against stated limits.
6. Issuer and footer: Who issued it, when, and any wording limiting what the document claims to be.

Our how to read a laboratory report guide walks through one example.

Pick one of the seven report pages above, read its limitations, then open its product page for size and price. The table covers all 23 documents.

The DSIP bulk report separately lists 99.20% HPLC purity and 86.33% peptide content by nitrogen analysis. Purity is the share of the chromatogram assigned to the main peak; peptide content is the share of the whole powder that is peptide at all, after water and counter-ions (the salt that travels with the peptide). Neither figure establishes the DSIP mass in a retail vial or its biological activity.

Prices are A$ on 30 October 2026 for one vial; best per mg uses the largest size.

Prices on this page are list prices, and the product page always shows today's price.

Each fault is stated as printed, with what it means for you.

Each report page explains its own fault in full.

PEPTALIAS publishes a certificate of analysis for every batch it stocks where one exists: 23 PDFs across 23 products today, each listed above with its batch number; the four products without a document are named, not left blank. The faults above are disclosed here and on each report page, not buried in a PDF you have not opened. Of the seven featured products, NAD+ 1000 mg at A$0.12 per mg and GHK-Cu 100 mg at A$1.00 per mg cost least per mg; the guides on research peptides and peptide blends cover the background.

Does PEPTALIAS test every batch?

No. PEPTALIAS publishes the supplier's own document for each product where one exists and flags their gaps and faults. It does not run its own tests and does not claim independent verification.

Is a supplier COA the same as a third-party lab test?

No. A supplier COA is the manufacturer reporting on its own material. A third-party test is run by an unrelated laboratory on a sample it received, and only that one is independent of the maker.

How do I match a COA to the vial I receive?

Compare the batch number on your vial label with the one on the PDF. If they differ, the document describes a different lot, not your vial.

Why do some products have no COA?

HCG, KPV, PT-141 and bacteriostatic water currently have no supplier document. Products without a report are marked as such on their product page.

1. NAD+ supplier document clarification note
2. PubChem: Epitalon
3. PubChem: Elamipretide
4. CAS Registry Number check digit