Why GHK-Cu Injections Sometimes Sting and 5 Ways to Reduce Discomfort
GHK-Cu (Copper Tripeptide-1) is one of the most respected peptides in regenerative research. Its ability to support wound healing, improve skin quality, promote angiogenesis, and influence gene expression repair has made it a significant compound across both aesthetic and therapeutic research contexts. Those using GHK-Cu in subcutaneous injection form may experience injection site discomfort. A