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GHK-Cu, a naturally occurring tripeptide, has been shown to enhance the expression of genes associated with wound healing and skin regeneration by activating pathways involved in collagen synthesis, such as transforming growth factor-beta (TGF-) and extracellular signal-regulated kinases (ERK)

Then you have something like the GLP-1 receptor agonists, such as Survodutide

The price is quite affordable ($25) for a NIOD product

Hydration Recommendation : You'll be encouraged to continue drinking water throughout the day to maximize the benefits of your treatment

Genome-wide identification of regulatory elements in Sertoli cells