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Collagen Production and Elastin One of GHK-Cu's most discussed properties is its potential role in skin firmness and elasticity

* Correspondence: Shudong Liu, [email protected] 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

2022;144:176719 ( 2022 American Chemical Society

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This is why crow's feet require both structural collagen rebuilding (GHK-Cu) AND muscular relaxation (SNAP-8/Syn-Ake) for comprehensive treatment addressing the collagen deficit alone doesn't stop the muscle from continuing to crease it, and addressing the muscle alone doesn't repair the existing structural damage

Most patients self-administer injections at home after a brief training session