Test report checker · 10 questions · Guide reviewed
Check a peptide test report (COA) in 10 questions
A test report, often called a certificate of analysis or COA, is a lab record for one sample. Answer each question with your report in front of you. You will see what the report shows and what it cannot confirm.
This checks the report, not the product.
A complete report does not make a product FDA-approved, safe for you, or proven to work. Read the full testing guide.
What your report shows
Answer the questions above with the report in front of you. Your answers stay on this page and are not saved or sent.
What no test report can show
- That the product is FDA-approved. Testing cannot make an unapproved product an approved medicine.
- That every vial in the lot matches the tested sample. A test usually checks a sample, not every unit.
- That the product is safe for you or works. A report is not a safety review or proof of benefit.
- How the product was made, filled, stored, and shipped. Those controls happen outside the lab report.
Common questions about peptide test reports
- What is a peptide COA?
- A COA, or certificate of analysis, is a lab record of test results for one sample, set against stated limits. A complete one names the material, lot, test date, method, allowed limit, result, and the lab.
- What does 99% purity mean on a peptide test report?
- On many reports it means the signal one test gave the intended peptide made up 99% of the measured total. It does not mean 99% of the vial's weight is peptide. It also does not show the amount, sterility, or endotoxins.
- Does a test report prove a peptide is safe?
- No. A report covers the tested sample and the tests listed. It cannot make an unapproved product approved, prove that every vial matches, or show that a product is safe for a person.
- How do I know if my peptides are real?
- No document proves that by itself. A report helps only if it names the exact peptide, shows an identity test with its method, and carries the same lot number as the vial. Even then it covers the tested sample, not every vial.
- Why does the lot number on a COA matter?
- The lot number ties a report to one batch. If the number on the report differs from the vial, the report is about other material. A match still does not show approval, safety, or benefit.
Where these questions come from
Each question restates a point from our peptide testing guide, which was last reviewed on . That guide draws on these FDA, federal rule, and pharmacopeia records. This page names no labs or sellers and does not rate them.
- FDA — Facts About Current Good Manufacturing PracticeFDA · Pharmaceutical quality overview
- FDA — Drug Quality Sampling and Testing ProgramsFDA · Quality surveillance and testing
- FDA — Q6A Specifications: Test Procedures and Acceptance CriteriaFDA · Quality specifications guidance
- FDA — Revised Draft Guidances for Certain Generic Peptide ProductsFDA · Draft peptide quality guidance update
- FDA research on peptide impuritiesFDA · Peptide quality control
- USP paper on peptide purity and reference standardsPharmaceutical Research · PubMed Central
- 21 CFR 211.84 — Testing and approval or rejection of componentsElectronic Code of Federal Regulations · Current good manufacturing practice
- 21 CFR 211.165 — Testing and release for distributionElectronic Code of Federal Regulations · Finished-product testing
- 21 CFR 211.167 — Special testing requirementsElectronic Code of Federal Regulations · Sterile and pyrogen-free products
- FDA — Sterile Drug Products Produced by Aseptic ProcessingFDA · Sterile manufacturing guidance
- USP General Chapter 71 — Sterility TestsUnited States Pharmacopeia · Sterility testing standard
- USP General Chapter 1211 — Sterility AssuranceUnited States Pharmacopeia · Sterility assurance principles