GHK-Cu 100mg from Simple Peptide was independently analyzed on March 2, 2026, confirming 99.945% purity by HPLC with LC-MS detection. The net peptide content tested at 91.28mg. The sample appears as blue lyophilized powder with purple caps visible in the vial images.
GHK-Cu is a copper-bound tripeptide researched for its potential in skin regeneration, collagen synthesis, and wound healing. A purity level of 99.945% indicates minimal contamination and high-grade synthesis quality. Mass spectrometry identification confirms GHK-Cu molecular structure with [M+2H]2+ at m/z 171.10 and [M+H]+ at m/z 341.05. Endotoxin testing passed both replicates, indicating low endotoxin levels suitable for research applications.
The full certificate of analysis (COA #2603020024) is available through Freedom Diagnostics Testing.

Submit your third-party lab test to help the community verify purity claims. Every report is reviewed before publication.