In healthy cells, p53 triggers apoptosis (programmed cell death) when damage is detected
"Regenerative and protective actions of the GHK-Cu peptide in the light of the new gene data." International Journal of Molecular Sciences, 19(7), 1987
While most people are calling it extraordinary in 2026, I was already sold on its efficacy as a healing agent back in 2006
Lee J, Hong SW, Chae SW, Kim DH, Choi JH, Bae JC, et al
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Decision framework for compromised peptides Definitely discard if: visible precipitation, significant color change, unusual odor, reconstituted solution left at room temperature more than 4 hours, or lyophilized peptide at warm temperature for more than 2 weeks