Exercise training augments Sirt1 signaling and attenuates cardiac inflammation in D galactose induced aging rats Aging GHK Cu is getting a lot of attention right now, and for good reason. This is not just a skin peptide. It's a copper binding tripeptide with documented effects on gene expression, collagen synthesis, Glutathione Tablets for Skin Glow & Brightening Chicnutrix Glow How GHK Peptide Works Signaling GHK acts as a switch for skin repair: Interacts with adenosine receptors reduces inflammation Activates MAPK ERK, PI3K Akt, TGF pathways Stimulates fibroblasts & keratinocytes boosts collagen, elastin