GHK-Cu Peptide, or Glycyl-L-Histidyl-L-Lysine-Copper, is a naturally occurring human plasma tripeptide that exhibits potent regenerative and protective effects across multiple tissue types. This small signaling molecule binds tightly to copper ions, which are essential cofactors for numerous enzymatic reactions involved in tissue repair and antioxidant defense. Clinically, it is recognized for its capacity to promote wound healing, improve skin structure, and potentially exert systemic anti-aging benefits. Its presence naturally declines with advancing age.
Origin
The peptide was originally discovered in 1973 by Dr. Loren Pickart while studying the regulation of liver cell growth, and its copper-binding property was soon identified thereafter. Its application expanded from dermatological wound care into the broader longevity and regenerative medicine space due to its demonstrated ability to remodel and repair damaged tissue matrices. The mechanism of action is now a significant focus in peptide research.
Mechanism
GHK-Cu functions as a critical signaling molecule, promoting the breakdown of abnormal, rigid collagen and elastin while simultaneously stimulating the synthesis of new, healthy extracellular matrix components. It acts as a potent anti-inflammatory agent, reducing oxidative damage and upregulating the expression of numerous genes involved in tissue repair and anti-aging pathways. Furthermore, its ability to transport copper is essential for the function of lysyl oxidase, an enzyme critical for collagen cross-linking and tissue strength.
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