About this article Cite this article Sorkun, M.C., Khetan, A
Products with 1-2% GHK-Cu concentration in stable formulations with appropriate pH and penetration enhancers create stronger improvements more likely persisting after treatment, while lower concentrations (0.1-0.5%) or degraded products may produce subtle temporary effects disappearing quickly upon discontinuation
Funding This work was supported by grants from the National Natural Science Foundation of China (NSFC Numbers 81672800, 81603009, 81673020, 81802632, and 82173830), Natural Science Foundation of Shaanxi (2020JQ-445), and the Key Research and Development Program of Shaanxi Province (2021SF-207, 2021SF-223, and 2022ZDLSF05-19)
Compared with FeSAN, the redox peak intensity of TMB in the presence of pFeSAN was much stronger, indicating more available active sites of pFeSAN for more efficient TMB oxidation