Researchers approaching discontinuation should focus not on whether weight will return, but on maximizing the duration and magnitude of the metabolic window that treatment provides
Several decisions were close, and the committee heard substantial disagreement about chemical characterization, peptide-related impurities, immunogenicity, carcinogenicity signals or uncertainty, the limited quantity and quality of human evidence, and whether existing FDA-approved therapies already address the proposed uses

How Its Being Used Youll find GHK-Cu in: Topical serums (often post-laser or with microneedling) Compounded injectables and transdermal creams (off-label) PRP and hair regrowth protocols Common use cases: Post-surgical healing Cosmetic skin rejuvenation Hair regrowth (stacked with PRP or exosomes) Scar treatment Wound support The Evidence: Topical use has shown skin improvements in small cosmetic trials Gene expression and lab studies support repair, inflammation reduction, and mitochondrial protection relevant to cognitive decline Systemic use (injections, high-dose protocols) lacks long-term safety and outcome data Results are highly individual and confounded by other interventions (PRP, microneedling, exosomes, etc.) Is It Safe
EDUCATIONAL RESOURCES RELATED RESEARCH PEPTIDES
Consult a healthcare provider familiar with peptide therapies for personalized guidance
2024;84:802-810.e6