It can be hypothesized that under conditions of stress, caused by the presence of selenium to protect cells, a high concentration of glutathione participates in the S-thiolation process, i.e., the attachment of the -SH group of proteins to the GSH molecule [18]
Studies on copper-free GHK demonstrated stem cell recovery effects in skin models, with copper chelation appearing to modulate, rather than abolish, this activity
GEP44 was detected in AP/NTS cells that express GLP-1R, Y1-R, or Y2-R (Fig
Gerichtsstand ist Linz, sterreich
The copper content of GHK-Cu formulations has been a theoretical safety consideration, given that excessive copper can be toxic - however, the amounts used in cosmetic and research applications are extremely small, the copper is tightly chelated by the peptide (reducing free copper availability), and topical absorption of copper from these products appears minimal and well below levels that would cause systemic copper accumulation or toxicity
We recognize that not everyone suffering from menopause has the same set of symptoms or the same health goals