They are usually safe, but some people might have reactions
GHK tempers the activity of metalloproteinase and its inhibitors (TIMP1 and TIMP2), regulating skin remodeling and wound healing processes [50,51]
Assays, biomarkers, and phenotypic endpoints Biochemical and transcriptional readouts ERR target-gene panels spanning fatty-acid uptake/-oxidation (Cpt1b, Acadl/Acadm), OXPHOS (Ndufs, Uqcrc, Cox), TCA (Cs, Idh), and mitochondrial biogenesis (Ppargc1a, Tfam) provide proximal pharmacodynamic evidence of receptor engagement
on experimentally induced inflammatory bowel disease in albino rats
It can be used independently on a reasonably clean scalp
This means they might not be as effective as other forms