ghk-cu peptide benefits anti-aging healing GHK-Cu: The Peptide That Rebuilds,
Description
When combining peptides, it is advisable to start with conservative doses of each compound and gradually adjust based on individual response and tolerance

doi: 10.1016/j.xcrm.2022.100663 89 SeigersR.SchagenS
Efficacy of dioic acid compared with hydroquinone in the treatment of melasma
Kurosu H, Yamamoto M, Clark JD, Pastor JV, Nandi A, Gurnani P, et al

Are the side effects you experience tolerable given the results
