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3) ECM remodeling and dermal architecture: GHK-Cu stimulates collagen, elastin, proteoglycans, and glycosaminoglycans, while synchronously increasing matrix metalloproteinases (and their inhibitors) to clear damaged ECM actions that can "reset" the perifollicular stroma and support dermal papilla function

Coming Off and Maintenance Semaglutide suppresses appetite but does not reset the biology that resists weight loss

The safer way to frame the question is: if a licensed clinician has prescribed a subcutaneous medication and trained you on technique, what areas are commonly used and what should be avoided

D. C. Morris, M. Chopp, L. Zhang, and Z. G. Zhang, Thymosin 4: a candidate for treatment of stroke?, Wiley, May 2010. doi: 10.1111/j.1749-6632.2010.05469.x