USA-based research supply
Built because researchers deserve better.
Peptagon is a USA-based supplier of research-grade peptides and research compounds. Every published lot ships with a live, third-party certificate covering purity, identity, quantity, endotoxin and sterility. Most research suppliers never run testing at that depth.
Why Peptagon exists
For years the research-use-only peptide market has run on inconsistent documentation, limited supply-chain transparency, and generic COAs that may have nothing to do with the vial in your hand. Peptagon was built as the documentation-first alternative: every claim we make traces to a batch-specific record you can open yourself.
Our materials are synthesized in the USA, manufactured in cGMP-certified facilities where applicable, and released only after independent third-party testing confirms they meet specification. The certificate is tied to the specific lot supplied. Never a placeholder, never someone else's batch.
The testing most suppliers skip
A typical research COA stops at purity. Every Peptagon certificate reports five results, including endotoxin and sterility, which most of the market never tests at all. Testing at that depth is expensive per lot, which is exactly why it is rare.
| Test | What it confirms | Specification | Result |
|---|---|---|---|
| Purity | HPLC purity of the compoundBlend certificates report overall blend purity plus each component. | > 98.0% | 99.0 - 99.98% |
| Identity | The compound is what the label saysConfirmed against reference for every compound in the vial. | Matches label | Conforms |
| Quantity | Measured milligrams per vialActual fill mass, not nominal. | Measured | Reported per lot |
| Endotoxin | Bacterial endotoxin screening (LAL) | ≤ 5.0 EU/mL | Pass, every lot |
| Sterility | Rapid sterility screening (PCR) | Not detected | Pass, every lot |
Verify any lot yourself
No trust required. The certificate is public and holographically verifiable.
Every product with a published lot shows its verified purity in the catalog and a live certificate on the product page.
The lot code on the certificate matches the lot printed on your vial. The record belongs to your batch, not a generic reference.
The certificate is hosted by the testing laboratory, not by us. Purity, identity, quantity, endotoxin and sterility, with the PDF one click away.
Who we serve
University laboratories that need documented, lot-traceable materials.
Private research groups running controlled workflows on tight timelines.
Qualified facilities that require auditable, batch-specific documentation.
Qualified buyers who read the COA before they order, as they should.
The Peptagon Standard
Not optional extras. The baseline for every catalog listing.
All products sold by Peptagon are intended strictly for laboratory research use only. They are not dietary supplements, medications, cosmetics, diagnostic products, or consumer health products. Not for human consumption, veterinary use, therapeutic use, or clinical application.