Although the direct cytotoxic effects of high cellular GSSG levels have been documented in a variety of cell types 33,34,35,36 , our cell culture studies with hepatocytes revealed that increased GSSG accumulation, despite being non-toxic per se, could sensitize hepatocytes to TNF-induced killing, suggesting that GSSG and TNF can synergistically induce hepatocyte death and that GSSG-triggered sensitization to TNF hepatotoxicity represents a clinically relevant process that may account for disease progression in NAFLD
Dermal protein expression: Reviews citing biopsy-based work report increased collagen markers after topical GHK-Cu versus comparator creams in small cohorts, though methodologies vary and more robust trials are warranted (PMC
Until Phase 3 data read out, assume uncertain genotype-specific effects
They work quietly in the background and require patience
Selling Point
Because of this side effect, users often do not eat enough and are at risk of nutrient deficiencies