WHAT TO KEEP IN MIND
Interest is not proof.
GHK CU evidence varies by application and delivery method. Topical GHK CU has more direct cosmetic skin research than many other proposed uses, but topical findings do not prove outcomes for other methods. NAD+ has well established biological roles, but this does not mean every NAD+ intervention produces meaningful cosmetic or healthy aging outcomes. This grouping reflects related research themes, not proven combination effects.


