It may reduce solubility and stability
They are listed here as a reference for researchers investigating GHK-Cu
Stable for up to 60 days when using bacteriostatic water [9]
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Semax (N-Acetyl Semax) : Nootropic peptide for improved focus, memory, and recovery from neurological injury
[DOI] [PubMed] [Google Scholar] 28.Kojer K, Bien M, Gangel H, Morgan B, Dick TP, Riemer J: Glutathione redox potential in the mitochondrial intermembrane space is linked to the cytosol and impacts the Mia40 redox state: E GSH of the IMS is maintained by the cytosol