Traditional methods have typically included high performance liquid chromatographic assays and are characterized by underestimation of GSH and overestimation of GSSG due to the autooxidative properties of GSH (Nuhu et al., 2020)
A genuine head-to-head, adequately powered, randomized comparison of GHK-Cu monotherapy against minoxidil, published in the peer-reviewed literature and independently replicated, is not something the primary record supports
The 28-day multi-use window typically cited for Bacteriostatic Water-reconstituted compounds and reflecting the bacteriostatic preservation duration under recommended storage and handling conditions , covers the majority of standard pre-clinical research protocol durations
The long answer is a bit more scientific
[DOI] [PubMed] [Google Scholar] 78.Sartini D., Santarelli A., Rossi V., et al