Peptides
GHK-Cu (Copper Peptide)
GHK-Cu is a copper-binding peptide widely discussed in research on skin and tissue remodeling. Below, we compare vendors currently stocking research-grade GHK-Cu — not just a single sales page.
GHK-Cu is a copper-binding peptide widely discussed in research on skin and tissue remodeling. Below, we compare vendors currently stocking research-grade GHK-Cu — not just a single sales page.
Prices and testing claims are pulled from each vendor's product listing. Always confirm current price and COA (Certificate of Analysis) on the vendor's site before buying.
| Vendor | Price | Purity Testing | Code | |
|---|---|---|---|---|
 SwissChemsBest Value |
$24.70 – $689.50 | Third-party COA | Buy Here → | |
 Amino Club |
From $29.99 | Third-party COA | Buy Here → | |
 UK Sarms |
£24.99 – £49.99 | Third-party COA | Auto-applied | Buy Here → |
 American Peptides |
From $50.00 | Third-party COA | Buy Here → | |
 MuscleChem |
£39.99 – £74.99 | In-house testing | Buy Here → | |
 Amino Vault |
$71.40 | Third-party COA | Buy Here → |
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.
Research-grade GHK-Cu is typically supplied as a lyophilized powder or pre-mixed solution in sealed vials, commonly at 50mg to 100mg strengths, intended strictly for laboratory research use.
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.
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.
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.
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 sell GHK-Cu (Copper Peptide) directly. We provide independent research, comparisons and vendor links — see the vendor comparison table above for current US, UK, Canada and Australia options.
GHK-Cu research is indexed on PubMed under search terms such as "GHK-Cu copper peptide" and "glycyl-histidyl-lysine skin research."
New guides, vendor comparisons and compound breakdowns every week.