Peptide testing
Pep Shop Texas uses independent analytical laboratories to verify the identity, purity, and content of research peptides.
Our testing standard
Independent testing is an important part of the Pep Shop Texas quality process. Samples are submitted to third-party laboratories for analytical testing before results are presented with the corresponding product.
Certificates of Analysis (COAs) are shown on the product page for each peptide, and every published report is listed below. Each report also has its own page with the lab, lot, dates and results: see all lab reports.
Gold Standard Analytics
An independent analytical lab in Houston. Each Gold Standard certificate has its own number (GSA-YYYY-NNNNNN) and a public page on the lab's site. Our product pages read that certificate live from the lab, so the results you see are the lab's own.
Visit Gold Standard Analytics →Analytical Formulations Inc. (AFI)
One of the independent laboratories Pep Shop Texas uses for peptide testing. AFI lists peptide analytical services including purity analysis and mass-spectrometry-based identity testing.
Visit AFI →Freedom Diagnostics
Another independent laboratory Pep Shop Texas uses for peptide testing, providing purity and identity testing using HPLC and mass spectrometry, with Certificates of Analysis issued for submitted samples.
Visit Freedom Diagnostics →How to verify a certificate
- Open the product page and tap COA · Lab report. Note the lab, the report or certificate number, the test date and the lot.
- Gold Standard Analytics: products with a Gold Standard certificate show a "Verified by Gold Standard Analytics" box, read live from the lab. You can also open the lab's own copy at goldstandardanalytics.com/coa/ followed by the certificate number. If the lab ever retracts or can't confirm a certificate, our page shows "COA pending" instead.
- Freedom Diagnostics and AFI: the report names the lab, the sample and the date. To confirm a report, contact the lab with the report number shown on it.
- Check that the lot or batch on the report matches the one listed on the product page.
What the reports cover
Reports cover analytical results for the submitted sample: identity (mass spectrometry), purity (HPLC) and, where tested, content per vial. Pep Shop Texas does not give dosing or preparation guidance. All products are for laboratory research use only, not for human or veterinary use.
Laboratory testing reflects the submitted sample. Review each report together with the lot or batch shown on the product page.
Published lab reports (…)
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