Also known as: Copper Peptide GHK · Glycyl-L-histidyl-L-lysine copper · Lamin
GHK-Cu is a naturally occurring copper-binding tripeptide with the sequence Gly-His-Lys. It plays a critical role in wound healing, skin remodeling, collagen synthesis, and anti-aging processes, with a unique ability to reset gene expression patterns.
GHK (Glycyl-L-histidyl-L-lysine) was first identified in human plasma in 1973. When bound to copper (Cu²⁺), it forms the highly bioactive complex GHK-Cu, which is naturally present in human plasma, saliva, and urine, with concentrations declining significantly with age.
Remarkably, GHK-Cu has been shown to modulate the expression of over 4,000 genes — approximately 31% of the human genome — and to reset gene expression patterns to a state associated with younger, healthier tissue. This makes it one of the most thoroughly studied peptides in cosmetic and regenerative medicine.
GHK-Cu delivers copper ions to enzymes like lysyl oxidase, which is critical for cross-linking collagen and elastin fibers, directly improving skin tensile strength and elasticity.
GHK-Cu activates genes associated with wound healing, anti-inflammatory signaling (NF-κB suppression), and antioxidant defense while downregulating genes associated with cancer progression and aging.
GHK-Cu is generally well-tolerated at studied concentrations. The copper component is essential for bioactivity — use peptide-copper chelate form, not free copper. Skin sensitivity may occur with high topical concentrations. Always source from reputable suppliers with CoA.
Topical GHK-Cu can be used continuously — it does not downregulate receptors with chronic use and has demonstrated long-term safety in cosmetic research. For injectable protocols in research contexts, cycling prevents potential desensitization and allows assessment of effects.
Ask anything about GHK-Cu — mechanisms, dosing protocols, interactions, or research comparisons.
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