GHK-Cu significantly increased collagen synthesis, promoted new blood vessel growth, and accelerated wound healing when applied directly to wounds in rats.
First in vivo wound healing proofGHK-Cu significantly increased connective tissue accumulation and collagen synthesis in a rat wound model
What the researchers found
GHK-Cu significantly stimulated connective tissue accumulation and collagen synthesis in rat wounds in vivo, confirming its wound-healing potential first observed in cell culture.
Why it matters
This was the first in vivo demonstration that GHK-Cu could accelerate wound healing, validating its transition from a lab curiosity to a potential therapeutic agent for tissue repair.
How the study worked
Researchers used an established wound chamber model in rats, applying GHK-Cu directly to wounds and measuring connective tissue accumulation, collagen content, and blood vessel formation compared to controls.
What this study cannot tell us
Animal study in rats using a wound chamber model, which may not perfectly replicate natural wound healing. No human data. Specific quantitative results not detailed in abstract.
How to read the evidence
Moderate animal evidence providing the first in vivo confirmation of GHK-Cu's wound healing properties, building on earlier in vitro work.
When this study was published
Published in 1993, this landmark study was the first to demonstrate GHK-Cu's wound healing effects in living animals, paving the way for subsequent human studies.
The bigger picture
This study was a key milestone in GHK-Cu research, bridging the gap between in vitro cell growth observations and practical wound healing applications that would eventually lead to its use in skincare and wound care products.
Questions still open
- What is the optimal concentration and application method for GHK-Cu in wound treatment?
- Does GHK-Cu accelerate wound healing in humans to the same degree as observed in rats?
Common questions
What is GHK-Cu?
How does GHK-Cu help wounds heal?
Read the original research
In vivo stimulation of connective tissue accumulation by the tripeptide-copper complex glycyl-L-histidyl-L-lysine-Cu2+ in rat experimental wounds.
The Journal of clinical investigation, 92(5), 2368-76
Citation
Maquart, F X; Bellon, G; Chaqour, B; Wegrowski, J; Patt, L M; Trachy, R E; Monboisse, J C; Chastang, F; Birembaut, P; Gillery, P. (1993). In vivo stimulation of connective tissue accumulation by the tripeptide-copper complex glycyl-L-histidyl-L-lysine-Cu2+ in rat experimental wounds.. The Journal of clinical investigation, 92(5), 2368-76.