The three steps

  1. A partner laboratory tests the lot

    A sample from the lot goes to our partner laboratory, which runs the tests ordered for it and issues its own report.

    • The laboratory's name, address and report number are printed on the certificate.
    • Results are taken from the laboratory's report as written: values, units, methods and limits are not rounded or reworded.
  2. AssayLine prepares the certificate

    We restate the laboratory's results on one consistent certificate, give it a document ID and check it against the laboratory report before it is released.

    • Each certificate has a document ID (COA-XXXX-XXXX-XXXX) and a version number.
    • If a certificate is corrected, the new version replaces it and the old one says so.
    • A certificate is published only once its lot is released.
  3. You check it here

    Scan the QR code on the certificate, or enter the lot code from the vial label. This site shows the certificate exactly as it was issued.

    • Compare the copy you were given with this page. If they differ, this page is correct.
    • A lot that is on hold, expired or recalled shows a notice above its certificate.

One lot, one set of results

A lot can have more than one copy of its certificate. One may name the company it was prepared for; another names no one; a brand copy names the brand and its own SKU. Each copy has its own document ID, and every copy carries the same laboratory results.

Whichever copy you hold, its QR code opens the page for that exact certificate on this site.

When something changes

  • A corrected certificate is issued as a new version. The old version's page says it has been replaced and links to the current one.
  • A lot put on hold shows a notice above its certificate until the hold is lifted.
  • A recalled lot says so in red, with the word, not just the color.
  • Only the current version's PDF can be downloaded.

What every certificate shows

  • Product, lot and document ID

    The product name and strength, the lot code printed on the vial, the document ID, its version and the dates it was manufactured, issued and expires.

  • The laboratory and its report

    Which laboratory performed the analyses, its contact details, the report number and the report date.

  • Every result, as reported

    One table per test: the method, the specification, the result with its unit, the limits of detection and quantitation when the laboratory printed them, and the laboratory's verdict.

  • Who it was prepared for

    Some copies name the company the certificate was prepared for, or a brand and its SKU. Every copy of a lot carries the same results.

  • A verdict and a reviewer

    Whether the results meet the specification, and who reviewed the certificate against the laboratory report.

  • A downloadable PDF

    The current version's PDF, with a QR code that opens this site's page for the same certificate.

Have a vial in hand?

Enter the lot code from its label to see its certificate.

Verify a lot