Peptide COA Checker

The Peptide COA Checker reads a certificate of analysis and scores it out of 100 across identity and potency, batch traceability, lab independence, and safety and marketing risk. Upload a photo, PDF, or scan of the document and you get a graded breakdown in seconds showing which claims the paperwork actually supports.

• Upload, paste, or snap a photo
• Scored across four key categories
• Get results in seconds

How the COA Checker works

1. Upload the certificate however you have it, as a PDF, a screenshot, a photo taken on your phone, or by scanning the QR code printed on the vial label.
2. The checker reads the document and pulls out the fields that matter, including compound identity, purity, net peptide content, batch and lot numbers, test dates, analytical methods, and the testing laboratory.
3. Seventeen weighted checks run across four categories and produce a score out of 100.
4. You get a category-by-category breakdown showing what the paperwork supports, what is missing, and which gaps are worth raising with the supplier before you place an order.

What the checker looks for

Who this is for

• Brands and reps sourcing from a new supplier who want a second read on the paperwork before committing to an order.
• Clinic and med spa owners vetting documentation a distributor sent over.
• Anyone holding a certificate of analysis who wants to know which parts of it actually mean something.

Methodology and limits

The scoring engine was built and tested against real certificates from accredited laboratories including Eagle Analytical, Accumark Labs, Vanguard Laboratory, ILS Laboratories, BTLabs, MZ Biolabs, and Freedom Diagnostics. Earlier versions were built around research-chemical vendor documents and failed on accredited lab reports, so the engine was rebuilt to handle compendial USP method references, US date formats, IU units, and net peptide content reported separately from purity.

Two rules override the score outright. A certificate dated more than 24 months ago is marked Unsupported regardless of how it scores elsewhere, because a certificate describes one batch at one moment in time. A certificate missing both identity and purity is also marked Unsupported, since without those two fields there is nothing meaningful left to evaluate.

There are real limits worth stating plainly. The checker does not test the product, does not verify that a document is authentic, and cannot confirm the named laboratory actually performed the work. It scores the quality and completeness of the evidence in front of you, which is a different thing from proving the product is what it claims to be.

On independence: Anti-Mortal operates a wholesale platform, and the same seventeen checks are applied to every document including certificates from our own suppliers. The engine has no allowlist and no exceptions.

All products referenced are research use only and are not for human consumption. Nothing here is medical guidance.

Common questions about peptide COAs

How do you read a peptide certificate of analysis?

Start with the compound name and confirm it matches what you ordered, then check the analytical methods used to establish identity and purity, look for a lot number tying the document to your specific vial, check how recent the test date is, and confirm the laboratory is named and independent of the seller.

What should a peptide COA include?

At minimum the compound name, a unique batch or lot number, manufacture and test dates, the analytical methods used, purity and net peptide content, the named testing laboratory with its accreditation, and for injectable preparations, sterility and endotoxin results. Anything absent from that list is a gap worth asking about.

How can you tell if a peptide COA is fake?

Common tells include a missing or unnamed testing laboratory, no lot number tying the document to a specific batch, dates that are absent or several years old, purity claimed with no method or chromatogram behind it, and marketing language appearing on a document that should read as a plain analytical report.

What purity level is normal on a research peptide COA?

Most research peptide certificates report purity in the high nineties by HPLC. The figure alone means less than people assume, because purity describes what share of the peptide material is the target compound rather than how much peptide is actually in the vial, which is why net peptide content matters alongside it.

What is net peptide content, and why is it different from purity?

Purity describes what share of the peptide material is the target compound, while net peptide content describes how much actual peptide is in the vial once salts, water, and residual solvents are accounted for. A product can report 99 percent purity and still contain substantially less peptide than the label suggests.

Does the testing lab need to be independent from the seller?

Independence matters because a report produced by the seller's own laboratory carries an obvious conflict of interest. A named third-party laboratory holding accreditation such as ISO 17025 is meaningfully stronger evidence than an internal document, and an unnamed laboratory is the weakest signal of all.

How old is too old for a COA?

The checker treats anything older than 24 months as unsupported, because a certificate describes one batch at one moment in time. A current document tied to the lot you are actually buying is worth considerably more than an older certificate from a different production run.

Does a COA mean the product is safe to use?

No. A certificate of analysis describes what testing found on a particular batch and nothing beyond that. These products are sold for research use only and are not for human consumption. A certificate is evidence about documentation quality rather than a safety clearance or any form of medical guidance.

Last updated: 2026-08-02