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Protein expression studies
GHK-Cu drives collagen production through activation of transforming growth factor-beta (TGF-) signaling, the most potent endogenous stimulator of collagen synthesis in fibroblasts
While B12 is important for overall health and energy, it's not typically the go-to for intentional weight gain
Topical formulations are common for surface skin concerns, while supervised injectable or compounded protocols may be considered for broader regenerative goals
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