There are five identified MCRs, and PT-141 activates all of these receptors excluding MC2R, which is found in the adrenal glands
Pure structural issues like severe disc extrusions or spinal stenosis show much more limited response
DOI: 10.1016/S0736-4679(00)00259-2 Gillman K (2017a): Much ado about nothing: monoamine oxidase inhibitors, drug interactions, and dietary tyramine
The copper peptide ghk-cu provides full anti-aging effects through gene expression tuning (affecting over 4,000 genes), antioxidant protection (increasing SOD, catalase, glutathione peroxidase), anti-swelling effects (reducing IL-6, TNF-alpha), and tissue remodeling promotion
However, always tell us what medications you're currently taking so we can make sure there are no interactions