Consequently, cell types with high mitochondrial respiration, the primary target of copper toxicity, are disproportionately vulnerable [80]
The contrast in their results is the single most important piece of evidence in the at-home copper peptide conversation, and almost no consumer-facing article cites it
Protein S -glutathionylation is an important post-translation modification, providing protection of protein cysteines from irreversible oxidation and, at the same time, serving to transduce a redox signal by changing structure/function of the target protein
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VEGFA has been identified as an effective and selective endothelial cell mitogen implicated in vascularization and angiogenesis (Yang et al., 2014)
The Hostynek and Maibach group at UCSF measured exactly this in 2011: human skin permeation of GHK-Cu as a function of skin layer, with the result that the peptide accumulates in the upper stratum corneum but does not pass through to viable epidermis or dermis in any meaningful quantity 4