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Longevity Research GHK-CU Price range: $39.60 through $520.20 Tested Free Ship Same Day COA Batch Documentation Current batch reports B002A ID + amount + purity Janoshik #168136 GHK-Cu 47.28 mg 99.925% purity B002B ID + amount + purity Janoshik #168142 GHK-Cu 54.14 mg 99.786% purity B002A Endotoxin screening Janoshik #168138 1.340 EU/vial B002B Endotoxin screening Janoshik #168145 1.662 EU/vial Prior batch Batch B001 Previous Janoshik report Research & library Research review Scientific background, literature, and compound context COA library Browse current and supporting batch documentation Scope limit: COAs document analytical testing for research materials