It is generally very well tolerated, non-sensitizing for most users, and is frequently marketed specifically to calm reactive or compromised skin
GHK-Cu is the copper(II) complex of the tripeptide glycyl-L-histidyl-L-lysine (Gly-His-Lys, abbreviated GHK)
Strengthening the hair shaft , improving its tensile strength, and preventing breakage
Effects of creams containing vitamin C, a copper-binding peptide cream and melatonin compared with tretinoin on the ultrastructure of normal skin-A pilot clinical, histologic, and ultrastructural study
When the level of red blood cells returns to normal, then the injections are given on alternate days for the next two weeks
Some practitioners advocate intramuscular injection near injury sites for deeper penetration, particularly for large muscle injuries or post-surgical recovery