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By monitoring these pathways, scientists can measure the downstream activation of specific genes responsible for tissue repair and matrix remodeling

[3] That framing is instructive: GHK-Cu may be most useful when tissue repair demand is high (post-surgery, injury, visible aging), which is also often the context in which sermorelin is prescribed for adults

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This is highly speculative because: Oral bioavailability differs between species Route of administration affects systemic exposure Species differences in peptide metabolism and clearance are unknown Current Practice Patterns Current practice patterns from unregulated sources typically involve: Subcutaneous injection: 0.25-0.5 mg once or twice daily, administered near injection sites for localized effects or abdominally for systemic distribution