From an evidence quality standpoint, Dihexa sits below Semax and Selank, even though all three are operating outside FDA approval
This varies by individual and concern
It has also been reported to improve fine lines and wrinkles [31]
Some peptides discussed here have promising but still largely preclinical evidence, so realistic expectations matter, and candidacy, protocols, and any pricing are confirmed at a personal consultation
After eight weeks of twice-daily use, the GHK-Cu version reduced wrinkle volume by about 56% and wrinkle depth by around 33% compared with the same cream without the peptide. Those are the kind of numbers that made people start taking copper peptides seriously in the first place
Whether cagrilintide or CagriSema preserves more lean mass than GLP-1 receptor agonists alone remains an open question that future studies need to address