ghk cu.peptide Copper Peptide Regenerating Serum for Glowing Skin and Hair Neurogan GHK-Cu Copper Peptide Hair

doi: 10.3389/fcell.2020.00055 Received 26 October 2019 Accepted 22 January 2020 Published 07 February 2020 Volume 8 - 2020 Edited by Albena Todorova Dinkova-Kostova, University of Dundee, United Kingdom Reviewed by Wei-Hsiung Yang, Mercer University, United States

2020 Jan 31;8:23

1 , 2 The diagnosis of vitamin B12induced acneiform eruption can be made clinically and does not require a biopsy

They are fast-acting and effective, but long-term use causes skin thinning, telangiectasia (visible blood vessels), and tachyphylaxis (reduced effectiveness over time)

Medically reviewed by Alan Lucks | MD , Alan Lucks MDPC Private Practice - New York on October 12th, 2025