does ghk-cu lose effectiveness over time or develop tolerance build Repost from @skincareanarchy • Copper peptides GHK-Cu Side Effects: Safety Evidence

In this study, we designed two novel targeting peptide motifs to enhance the interaction between cosmetic peptides and the cell surface, thereby improving their performance for skin health

Mechanisms include direct DNA binding, affecting transcription factor activity, and epigenetic modifications

This material has not been approved by the FDA or any regulatory authority as a drug, food, dietary supplement, cosmetic, or medical product

ERK1/2 activation upregulates collagen gene expression and promotes cell proliferation critical for fibroblast proliferation, while p38 MAPK inhibition reduces inflammatory response

Desbois-Mouthon C, Wendum D, Cadoret A, Rey C, Leneuve P, Blaise A, Housset C, Tronche F, Le Bouc Y, Holzenberger M: Hepatocyte proliferation during liver regeneration is impaired in mice with liver-specific IGF-1R knockout

Get those right and the actives have a chance to do what the research says they can