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Most community protocols use 3-6 cycles (one cycle = 3 days on, 4 days off) per course, with 3-6 months rest between courses
Schedule: Daily subcutaneous injections for 816 weeks
Realistic expectation: Users running microneedling plus GHK-Cu often see at week 8 what topical-only users see at week 12
The key is to recognize that most of the human evidence behind these compounds is limited, and a meaningful share of what circulates online is anecdotal, not clinical
This dual action caught the attention of scientists studying wound healing, who began exploring whether these protective and regenerative properties could translate to skin repair applications
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