Built by biochemists who were tired of gambling on their own supply chain.
The Purity Standard started as an internal QC protocol for a small research lab. Today it's a benchmark: every compound we sell passes the same tests we'd demand as customers.
Our process
Four checkpoints. Zero shortcuts.
Every batch moves through the same sequence, and every checkpoint has a documented pass/fail threshold. No product ships if any single step falls short.
Sourcing
Peptides are synthesized at GMP-registered contract manufacturers we've qualified through on-site audits. We do not source from open marketplaces or unverified brokers.
Independent testing
Every incoming lot is sent to an ISO-17025 accredited third-party lab for HPLC purity, LC-MS identity, and endotoxin analysis. Nothing is self-tested.
Cold-chain fulfillment
Vials are hand-packed under laminar flow with phase-change coolant rated for 48+ hours at 2–8°C. Every shipment has a documented chain of custody.
Batch traceability
Every vial ships with a batch number tied to a downloadable, publicly archived COA. If we can't prove it, we don't claim it.
Testing partners
We rotate across multiple independent labs to prevent single-source bias in our QC results.