ghk cu skin biology Signals GHK-Cu Spray Microneedling Serums: GHK-Copper Peptides -
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PMID: 38673453

Five citation issues from Edition 1.0 corrected: (1) Pavicic 2011 journal corrected from "American Journal of Clinical Dermatology" to Journal of Drugs in Dermatology

If absorption is impaired or levels remain low, higher-dose or sublingual B12, or injections, may be needed

Zuraw, B

Clin Endocrinol 10:507, 1979
