While GHK-Cu occurs naturally in the body and has been used topically for decades, repeated subcutaneous or intramuscular injection of supraphysiological doses is a different proposition
Furthermore, SC can be genetically modified to overexpress crucial genes that can augment wound healing and decrease the formation of scars.[42] Demerits of stem cell/disadvantages of stem cell Although SC has added advantage over PRP-based approach in regenerating the damaged tissue, there are certain concerns in using SC for therapies
In animal research, it helps healing cells move to injured areas faster, supports new blood vessel growth, and reduces scar tissue
J Mol Diagn 21(6):994-1009, 2019
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The injectable forms of GHK-Cu sold online are classified as unapproved drugs and "research chemicals." They have not been evaluated for safety or efficacy by the FDA, making it illegal for companies to market them for human consumption or medical treatment