Sample Certificate of Analysis library

How to verify every batch

Compounded peptide therapy only works if the product in the vial matches what is on the label. Third-party testing is how you prove it, to your medical director, to your patients, and to yourself.

1. 1. Licensed source

   Every lot is compounded at a licensed 503A pharmacy or 503B outsourcing facility, with the license number printed on the COA header.

2. 2. Independent laboratory

   Testing is performed by an ISO/IEC 17025-accredited lab that is not affiliated with the compounding pharmacy, avoiding any conflict of interest.

3. 3. Lot-level traceability

   Each vial ships with a lot number that matches the COA, so any patient dose can be traced back to its exact analytical record.

4. 4. Full analytical panel

   Identity, potency vs label claim, related substances, sterility (USP <71>), endotoxin (LAL), water content, pH, and appearance are on every report.

5. 5. Source verification on request

   Your clinical team can request confirmation of any lot directly from the testing laboratory, on your patient's behalf, at any time.

Frequently asked questions

What is a Certificate of Analysis (COA)?

A COA is a batch-specific lab report from an independent testing facility documenting identity, potency, purity, sterility, and endotoxin levels for a compounded medication. It is the primary document a licensed provider uses to verify a compounded peptide meets its label claim.

Are these sample COAs from real batches?

No. The documents in this library are redacted examples for illustration. Real COAs shipped to your clinic are tied to the specific lot number your patient received and are traceable back to a licensed 503A or 503B compounding pharmacy.

How do you verify a COA is authentic?

Every live COA from Direct Peptide Sales lists the compounding pharmacy license number, the independent testing lab, a unique lot number, and the release date. Your clinical team can request source verification directly from the testing lab on request.

What testing is on every COA?

Identity by HPLC or mass spectrometry, potency by RP-HPLC against label claim, related-substance impurity profile, water content by Karl Fischer where applicable, sterility per USP <71>, endotoxin by LAL, pH, and visual appearance.