Safety Considerations and Possible Side Effects GHK-Cu is generally well tolerated topically, with mild localised reactions such as skin irritation or scalp itching being the most commonly reported issues
A review of over 300 casecontrol and cohort studied used final height as an indication of GHIGF-1 action and found that individuals over 175 cm have a 20% higher chance of developing prostate cancer, a 22 and 2060% higher chance of breast and colorectal cancers, respectively, when compared with individuals below 160 cm (278, 279)
While it appears feasible for individuals to meet the RDA from food only, Americans would have to depart from their current dietary practices and include greater intakes of nuts, seeds, fruit, and vegetables without increasing fat intake above recommended levels (96)
Hodgson, N
Moreover, some clinical trials of the combination of DSF and copper have been completed (NCT00742911 and NCT03034135) or are in progress (NCT04265274, NCT03714555, NCT03363659, and NCT02715609), providing a potential strategy for tumor therapy
Krajcovicov-Kudlckov M et al
