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This highlights how GHK-Cu contraindications can range from life-threatening to quality-of-life concerns

By modulating this enzyme, GHK-Cu promotes the deposition of properly organized, youthful-pattern collagen

*Correspondence: Chen Chen, [email protected] Guo, [email protected] These authors have contributed equally to this work This article was submitted to Molecular Signalling and Pathways, a section of the journal Frontiers in Molecular Neuroscience Disclaimer All claims expressed in this article are solely those of the authors and do not necessarily represent those of their affiliated organizations, or those of the publisher, the editors and the reviewers

A peptide arriving in an unlabeled vial from a Telegram vendor does not