I've read some online accounts of people experiencing pre-mature skin aging after using GHK tripeptide on their skin. I have have not found any studies to back this up, but I did find one study on another anti-aging peptide called argireline that found that high doses, for a prolonged time could be dangerous.
Anyone have any information to help with this?
I also found a vendor called 'active topicals' selling a 2ml GHK solution for £7, anyone tried that?