Verify Peptide Suppliers. Check Batch Documentation. Read Real Reviews.
The only platform that independently verifies peptide supplier documentation and hosts community reviews at supplier, peptide, and batch level.
How It Works
Supplier lists a batch
Suppliers register their peptides and batches on PeppyCheck, uploading COAs, HPLC reports, mass spectrometry results, sterility and endotoxin tests.
We verify the documents
Our team independently checks documentation against issuing labs, confirmation portals, or runs independent tests. Every batch gets a verification status.
You research with confidence
Search by supplier, peptide, or batch number. See the documentation completeness score, verification status, and real community reviews before you research.
Why PeppyCheck
We do things differently.
Independent Verification
We contact issuing laboratories directly to confirm that COAs and lab reports are genuine — not just uploaded. A verified badge means we have checked, not just received.
Batch Level Reviews
Community reviews at supplier, peptide, and batch level. Real experiences from real researchers — moderated for authenticity and never removed for being negative.
Documentation Scoring
Every batch gets a documentation completeness score out of 5. See at a glance how thoroughly a batch has been documented — COA, HPLC, mass spec, sterility, and endotoxin tests.
Full Transparency
We publish exactly how we verify. Our methodology is open, our independence is structural, and no supplier can pay to improve their verification status.
Top Reviewed Suppliers
Suppliers with the highest community ratings on PeppyCheck.
Are you a peptide supplier?
List your products, upload your documentation, and get independently verified. Give researchers the confidence to work with your products.