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This independent HPLC lab test with UV detection coupled with mass spectrometry (LC-MS) confirms the GHK-Cu/KPV blend from Petratide Science at 99.68% purity. The blend combines two research peptides: GHK-Cu (65.96 mg) and KPV (11.55 mg) for a total tested quantity of 77.51 mg. Endotoxin testing was performed using Limulus Amebocyte Lysate assay in accordance with USP #85; both replicates passed with assay sensitivity of 50.05 EU/mL. The analysis was conducted by Freedom Diagnostics on May 30, 2026.
This dual-peptide formulation combines complementary peptides researched for synergistic effects on skin health, collagen synthesis, anti-inflammatory response, and tissue repair. A purity level of 99.68% indicates pharmaceutical-grade synthesis with minimal contamination.
The full certificate of analysis is available for download on this page.

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