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This product contains high-purity (99.9%) lyophilized (freeze-dried) GHK-Cu powder in a 50 mg to 100 mg format, designed for accurate measuring and flexible formulation

McGinty JW et al (2014) Recognition of posttranslationally modified GAD65 epitopes in subjects with type 1 diabetes

Red Flags in Vendor Selection Avoid suppliers who cannot provide testing documentation, offer prices substantially below market rates, make therapeutic claims about their products, use unclear peptide nomenclature or sequences, ship without proper cold storage for temperature-sensitive compounds, or lack established reputation in research communities

Yes, its an essential trace element