Understanding what 503A means requires a brief explanation of pharmaceutical compounding regulations in the United States
Lower triglycerides suggest it helps with fatty liver disease too
A 2016 study published in Nature Scientific Reports showed GHK-Cu produced no cytotoxicity to human keratinocytes at concentrations up to 5,800 micromolar over 72 hours and did not induce inflammatory biomarkers unlike other copper compounds
This randomized, double-blind, parallel-group, placebo-controlled, forced-dose titration study (Study 10) consisted of an 11-week double-blind treatment period (3 weeks of forced-dose titration followed by 8 weeks of dose maintenance)
Ray SD, Lam TS, Rotollo JA, Phadke S, Patel C, Dontabhaktuni A, Mohammad S, Lee H, Strika S, Dobrogowska A, Bruculeri C, Chou A, Patel S, Patel R, Manolas T, Stohs S