ghk-cu blue Copper Peptide Beef Tallow: Grass-Fed Balm for Mature Skin 1 and Palmitoyl Tetrapeptide Copper Peptide Firming Serum |

The science says: biologically plausible, preclinically promising, mechanistically coherent

Consistent topical use can produce meaningful improvements in surface texture and hydration, particularly when applied post-microneedling when the barrier has been temporarily disrupted

The mechanism appears to involve increased serotonin synthesis in substantia nigra (both compacta and reticulata), a regional pattern unlike any existing antidepressant drug, plus potential dopaminergic contributions given the nigrostriatal location

Chai SY, Bastias MA, Clune EF, Matsacos DJ, Mustafa T, Lee JH, McDowall SG, Paxinos G, Mendelsohn FA, Albiston AL