ghk-cu compatibility with vitamin c A face serum appears blue because the active ingredient, “GHK-Cu” ( copper peptide), is naturally a blue-colored powder, meaning its inherent color transfers to the serum when mixed in; this blue hue Cu-GHK vs Tretinoin: The Anti-Aging
Description
J Mol Med (Berl) 2017
Sci Adv 2021;7, eabg4980, doi: Lee, S

A similar subtle gray matter pathology has also been described in the MS brain

DNA repair Beyond regulating the NHEJ pathway acting as an adenylation donor, NAD + also modulates other DNA repair pathways via activating NAD + -consuming enzymes, PARPs and sirtuins
