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Copper peptides, particularly GHK-Cu , have been studied for decades for their role in skin regeneration, hair growth, and anti-aging

When stored correctly, a reconstituted peptide in Bacteriostatic Water is typically stable for several weeks (check specific research guidelines, but 3-4 weeks is a common timeframe)

How long is the typical shelf life for GHK-Cu creams

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That liquid needs to: Be sterile and injection-grade Not introduce contamination during the reconstitution process Preserve the reconstituted peptide solution for the 28-day shelf-life window Be compatible with peptide chemistry Bacteriostatic water meets all four criteria