ghk cu nasal spray vs injection Skin GHK-Cu is now offered in

Even if its safe in small doses, we have no data about what happens at higher doses

Fine lines around the eyes and mouth soften because the underlying matrix is more hydrated and structurally supported

Research Evidence Comparison The depth of scientific support varies significantly between copper peptide types

Your provider will guide the best approach for your skin

If your main concern is early jowling or neck laxity and you want an immediate lift: PDO threads provide structural support that you see right away

GHK-Cu is probably not the right primary intervention if you have advanced alopecia with significant follicle loss once follicles are scarred out, no peptide is bringing them back