How We Verify
At PeppyCheck our goal is simple — to give you the most accurate and trustworthy information possible about the peptides you are researching. Here is exactly how our verification process works, what each status means, and what we can and cannot confirm.
What We Verify
We verify documentation — not products. PeppyCheck is not a testing laboratory. We do not physically test peptide samples ourselves. What we do is independently confirm that the documentation a supplier provides is authentic, accurate, and issued by the laboratory it claims to come from.
This is an important distinction. A verified badge on PeppyCheck means we have confirmed the paperwork is real. It does not mean we have physically tested the product in that batch.
The Five Verification Stages
Every batch on PeppyCheck has a verification status. Here is what each one means.
The supplier has uploaded documentation for this batch to PeppyCheck. We have received it but have not yet reviewed it. This is the starting point — it tells you documentation exists but nothing about whether it has been checked.
Our team has manually reviewed the uploaded documentation. We have checked that the document appears authentic — formatting is consistent with known reports from that laboratory, the batch number matches, the peptide details are correct, and there are no obvious signs of tampering or editing. This is a basic integrity check, not independent confirmation with the lab.
We have contacted the issuing laboratory directly — by email or through their support channel — and confirmed that the report reference number exists in their records and matches the document submitted by the supplier. This means the COA or lab report is genuine and was actually issued by that lab for that batch.
Some laboratories provide a public verification portal where report reference numbers can be looked up directly. Portal verified means we have confirmed the report through the lab's own official verification system. This is equivalent to lab confirmed in terms of trust level but faster and more automated.
The highest verification level. A physical sample from this batch has been obtained and sent to an independent third party laboratory for testing — without the supplier's involvement in the chain of custody. The lab tests what it actually receives, with no opportunity for the supplier to influence the sample. This represents the strongest possible confirmation that the batch contains what it claims.
What We Cannot Confirm
We believe in being completely honest about the limits of our verification process.
Even at Lab Confirmed or Portal Verified status we cannot guarantee that the sample the supplier sent to the laboratory is the same as the product in circulation. The supplier controls which sample is submitted for testing. A COA confirmed as authentic tells you the paperwork is real — it does not guarantee that every vial from that batch is identical to the sample that was tested.
This is a structural limitation of how the peptide supply chain works and it applies to all documentation-based verification — not just PeppyCheck. It is why Independently Tested status — where we or a community member sources a sample directly — provides the strongest assurance.
We display this information transparently so you can make informed decisions based on what verification actually means at each level.
"A verified badge on PeppyCheck means we have confirmed the paperwork is real."
The Documentation We Review
For each batch we assess up to five types of documentation.
Certificate of Analysis (COA)
The primary quality document issued by a laboratory confirming the identity and purity of the peptide. All legitimate batches should have one.
HPLC Report
High Performance Liquid Chromatography. Measures the purity of the peptide by separating its components and showing what percentage of the sample is the intended compound versus impurities.
Mass Spectrometry Report
Confirms the peptide is actually what it claims to be by verifying its molecular weight and structure. Harder to fake than a COA alone.
Sterility Test
Confirms the product is free from bacterial and fungal contamination.
Endotoxin Test
Tests for endotoxins — toxic substances produced by bacteria that can cause serious reactions in research applications. A critical safety test that many suppliers do not provide.
Every batch on PeppyCheck shows a documentation completeness score so you can see at a glance how thoroughly a batch has been documented.
Who Issues the Documentation Matters
Not all COAs are equal. We record and display who commissioned each document.
Manufacturer In-House COA
Issued by the manufacturer's own laboratory. The weakest form of documentation since there is no independent oversight.
Manufacturer Third Party COA
Issued by an independent laboratory commissioned by the manufacturer. More trustworthy than in-house but still originates upstream of the supplier.
Supplier Third Party COA
The supplier commissioned an independent laboratory to test what they actually received from the manufacturer. This is the most relevant documentation as it tests the product at the point closest to what is distributed.
Community Reviews
Alongside documentation verification we display community reviews at three levels — supplier, peptide, and batch. Reviews are submitted by users who have purchased and used products from listed suppliers for research purposes.
All reviews are moderated by our team before publication. We review for authenticity, relevance, and compliance with our review guidelines. We do not remove reviews simply because they are negative — our platform is built on honest, open information.
Reviews represent the personal experiences and opinions of individual users. PeppyCheck does not verify that reviewers purchased the product they are reviewing, and review content should be considered alongside documentation verification rather than as a replacement for it.
Our Commitment
PeppyCheck is an independent platform. We do not manufacture, sell, or distribute peptides. We have no financial interest in whether you purchase from any particular supplier — our revenue comes from supplier subscriptions and user memberships, not from sales commissions tied to purchase decisions.
Our verification badges are earned through our documented process, not purchased. A supplier cannot pay to improve their verification status — status reflects what their documentation has demonstrated.
We are committed to maintaining this independence because it is the foundation of everything PeppyCheck stands for.
If you have questions about our verification process or want to report a concern about a specific batch or supplier, please contact us.