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A 2025 regulatory analysis by Hurley and Frier at Frier Levitt outlined the practical implications: legitimate medical access to many peptides continues, but the sourcing pathway matters more than ever, and the clinician's knowledge of the current regulatory status of each specific compound is a prerequisite for appropriate prescribing
Critically, there is no rigorous, comparative research to definitively prove the methods are equally effective or interchangeable
GHK-Cu has the advantage when considering the overall amount of research involving tissue repair, collagen, inflammation, and skin health
Not a researcher
For general wellness, a common schedule is getting an injection anywhere from once a week to once a month
Injectable GHK-Cu, on the other hand, has a much more complicated regulatory status
