GHK-Cu (Copper Peptide, Glycyl-L-Histidyl-L-Lysine-Copper) is a naturally occurring copper-binding tripeptide found in human plasma, saliva, and urine.
🔬 Studied for: Skin & Collagen Research
💊 Also studied for: Tissue-Remodeling Research
🧪 Not FDA-approved — sold strictly for laboratory research
📈 No standardized human dosage established in published literature
GHK-Cu (Copper Peptide, Glycyl-L-Histidyl-L-Lysine-Copper) is a naturally occurring copper-binding tripeptide found in human plasma, saliva, and urine. Circulating GHK-Cu levels decline with age, which has driven substantial research interest in its role in tissue remodeling and skin biology.
GHK-Cu is studied for its ability to bind copper and activate a range of gene-expression pathways associated with collagen and elastin synthesis, antioxidant enzyme activity, and anti-inflammatory signaling in dermal and connective tissue.
These are effects GHK-Cu (Copper Peptide) has been studied for in available preclinical and early research — not claims about guaranteed outcomes.
GHK-Cu is one of the most-studied peptides in dermal research literature, with investigations focused on collagen and glycosaminoglycan synthesis, wound healing, and reduction of photodamage markers in skin models.
Beyond skin, research has explored GHK-Cu's role in modulating matrix metalloproteinases and antioxidant pathways relevant to wound repair and tissue remodeling more broadly.
Concentrations used in cell-culture and animal research vary substantially by study design and are not directly comparable to a human dose. No clinically established injectable human dosage exists for research-grade GHK-Cu.
Compound X does not provide dosing recommendations. GHK-Cu (Copper Peptide) is sold for laboratory research use only and is not intended for human consumption.
GHK-Cu has a long history of topical cosmetic use, but injectable/research use has not been evaluated in large controlled human trials. Reported concerns include local irritation at injection sites and, at high concentrations, potential pro-oxidant effects reported in some in-vitro models.
No. GHK-Cu (Copper Peptide) is not FDA-approved for any indication and is sold strictly as a research chemical, not a medication or dietary supplement.
Skin & Collagen Research — GHK-Cu is one of the most-studied peptides in dermal research literature, with investigations focused on collagen and glycosaminoglycan synthesis, wound healing, and reduction of photodamage markers in skin models.
In the US, UK, Canada and Australia, GHK-Cu (Copper Peptide) is generally sold labeled "for research use only, not for human consumption." It is not approved as a dietary supplement or medication in any of these countries.
GHK-Cu research is indexed on PubMed under search terms such as "GHK-Cu copper peptide" and "glycyl-histidyl-lysine skin research."
Compare current prices, purity testing claims and coupon codes across every vendor Compound X tracks.
New guides, vendor comparisons and compound breakdowns every week.