GHK-Cu is a naturally occurring tripeptide-copper complex with a long research history in wound healing, collagen synthesis, and anti-inflammatory biology.
GHK-Cu (glycine-histidine-lysine copper complex) is a tripeptide naturally present in human plasma, saliva, and urine. First isolated in the 1970s by Loren Pickart, GHK-Cu was initially identified as a factor promoting liver cell regeneration in older plasma. Subsequent research has focused on its role in wound healing, tissue remodeling, and modulation of inflammatory gene expression.
GHK-Cu has been shown to stimulate collagen, elastin, and glycosaminoglycan synthesis in fibroblast cell cultures. These extracellular matrix (ECM) components are critical for maintaining tissue architecture and mechanical integrity. Researchers have also observed that GHK-Cu promotes the activity of matrix metalloproteinases (MMPs), which remodel damaged or excess ECM — creating a dual mechanism of synthesis and remodeling.
Analysis of GHK-Cu's effects on gene expression has revealed broad transcriptional activity. Studies using microarray and RNA-seq approaches have identified modulation of genes involved in tissue repair, immune regulation, and angiogenesis. Researchers have proposed that GHK-Cu may act as a feedback signal indicating tissue damage, triggering repair cascades at nanomolar concentrations. These findings remain in the in-vitro and small-animal research domain.
For in-vitro research use only. Not for human or veterinary use.