Lysyl oxidase like 2 Encyclopedia MDPI GHK CU Developing functional musculoskeletal tissues through hypoxia and lysyl oxidase induced collagen cross linking PNAS Lysine Hydroxylation and Cross Linking of Collagen Springer Nature Link 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 File:Tropocollagen cross linkage lysyl oxidase (EN).svg Wikimedia Commons