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The dose is deliberately high compared to classical peptides (5-10 mg for GLP-1 analogues, 2-5 mg for short regeneratives) because documented GHK-Cu protocols use larger quantities in trichological and cutaneous research (1-3 mg per injection, concentrated topical applications)

Given that GHK-Cu is a naturally occurring molecule present in human plasma, concerns about long-term topical use seem largely theoretical

PMID 40593617

Predicted skincare trends for the next few years One significant trend is the continued rise of "skinimalism," focusing on fewer, more potent products that deliver multiple benefits

And it's important to note that CJC-1295 has been placed on the FDA's list of bulk drug substances that cannot be used in compounded medications