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GHK-Cu specifications, storage and shipping Compound: GHK-Cu Also known as: GHK-Cu (glycyl-L-histidyl-L-lysine copper(II) complex) Class: Copper-binding tripeptide complex Appearance: Lyophilised powder Sizes & SKUs: 100 mg (56342) Presentation: sealed glass vial Form: Lyophilised Powder Grade: High-purity research grade Purity verification: HPLC-assayed to a minimum of 99% purity — the measured result is stated on the published Certificate of Analysis Identity confirmation: Mass spectrometry Certificates: issued by Janoshik, an independent laboratory, and published in the COA library Classification: In vitro research purposes only — laboratory reference material Lyophilised — long term −20 °C to −80 °C — long-term storage Lyophilised — short term 2–8 °C — refrigerated, for a few months Reconstituted 2–8 °C — use within 8–12 weeks Protect from light and moisture