Sourcing & Quality
Why Park Ave Peptides
Clinicians and researchers expect reference-grade material, transparent documentation, and verifiable testing. Here is how we earn that trust on every lot.
≥99% HPLC Purity
Every lot is verified by high-performance liquid chromatography. Mass spectrometry confirms identity.
Independent Third-Party Testing
Lots are tested by ISO 17025-aligned laboratories. We do not self-certify our own materials.
COA Per Lot
A Certificate of Analysis accompanies every lot — appearance, purity, peak data, and identity confirmation.
cGMP-Aligned Facilities
Synthesized in facilities operating under current Good Manufacturing Practice principles.
US-Based Fulfillment
Cold-chain logistics from US fulfillment hubs. Tracked and temperature-monitored where required.
Chain of Custody
Lot numbers, manufacture dates, and storage conditions are traceable from synthesis to delivery.
Professional-Grade Standards
Materials are produced for professional reference applications, not bulk industrial use.
Verified Clinician Network
Distribution is limited to verified clinicians, researchers, and licensed institutions.
Our quality process
- 01
Solid-phase synthesis
Compounds are synthesized using Fmoc solid-phase peptide chemistry by qualified manufacturing partners.
- 02
Purification
Crude peptide is purified by preparative HPLC to remove deletion sequences, truncations, and synthesis byproducts.
- 03
Identity confirmation
Mass spectrometry (ESI or MALDI) confirms the expected molecular weight before release.
- 04
Purity verification
Analytical HPLC at 220 nm establishes purity at ≥99% on the principal peak.
- 05
Lyophilization & fill
Material is lyophilized into sterile vials under controlled environment.
- 06
Third-party retest
An aliquot from each lot is sent to an independent laboratory for confirmatory testing.
- 07
Documentation
A lot-specific Certificate of Analysis is generated and archived. Available to clinicians on request.
Review a sample COA
See exactly what documentation accompanies every lot.