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(PMID 3169264)
Jan 15, 2026 The difference between GHK-CU working and GHK-CU transforming your skin comes down to one thing
1998 observed that topical copper-binding peptide cream increased procollagen production in 70% of subjects, vs
Age and baseline GHK levels Natural GHK production declines with age
GHK-CU dosing by goal Different objectives require different approaches
The mismatch between a 50 mg vial and a microgram dose is itself a signal that the injectable route was never worked out for this peptide
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