GHK-Cu

Volume Pricing

Price per pack (10 vials). Discount applies to this compound only – no mix and match.

GHK-Cu — Copper Tripeptide-1 / Endogenous Tissue Remodeling & Gene Modulation Peptide

GHK-Cu is a naturally occurring copper complex of the tripeptide glycyl-L-histidyl-L-lysine (Gly-His-Lys), first isolated from human plasma in 1973 by researcher Loren Pickart. It is found endogenously in plasma, saliva, and urine — with plasma levels of approximately 200 ng/mL at age 20, declining roughly 60% by age 60. This age-related decline coincides with reduced tissue regenerative capacity, making GHK-Cu one of the most biologically compelling compounds in the study of aging, wound repair, and extracellular matrix dynamics. Its mechanism is unusually broad: rather than acting on a single receptor, GHK-Cu functions as a gene-modulating signal that influences expression across a large portion of the human genome, repositioning it as a subject of serious interest far beyond conventional peptide research.

Why GHK-Cu’s Mechanism Is Distinctive

Most research peptides act through a defined receptor or hormone pathway. GHK-Cu operates differently — as a copper-chelating tripeptide, it delivers bioavailable copper(II) ions directly to cells while simultaneously activating a cascade of downstream signaling events across multiple biological systems.

The copper component is not incidental — it serves as a cofactor for critical enzymes in connective tissue formation and antioxidant function, and GHK’s high copper affinity (stability constant log₁₀ = 16.44) makes it an efficient biological copper transporter at physiological pH.

Research Applications

GHK-Cu is used in studies examining:

• Wound healing acceleration and dermal tissue remodeling
• Collagen, elastin, and glycosaminoglycan synthesis in fibroblast models
• Age-related decline in tissue regenerative capacity and gene expression reversal
• Extracellular matrix turnover and MMP/TIMP regulation
• Angiogenesis and vascular growth factor dynamics
• Anti-inflammatory mechanisms and cytokine modulation
• Hair follicle biology, follicular cell apoptosis, and TGF-β1 suppression in androgenetic models
• Neuroprotection, nerve outgrowth, and COPD-related lung tissue pathways
• Antioxidant enzyme regulation and oxidative stress attenuation

Specifications

Reconstitution

GHK-Cu arrives as lyophilized powder and must be reconstituted with bacteriostatic water prior to use. Use the formula:

Total mg ÷ Volume added (mL) = Concentration (mg/mL)

Example (50mg vial): 50mg + 3mL BAC water = ~16.67mg/mL solution Example (100mg vial): 100mg + 3mL BAC water = ~33.3mg/mL solution

Reconstituted GHK-Cu produces a characteristic light blue solution due to the copper chelate complex — this is normal. Cloudy, particulate, or discolored solutions should be discarded. Reconstituted peptide should be stored at 2–8°C, protected from light, and used within 28–30 days. Do not freeze reconstituted solution.

Protocol Notes

GHK-Cu is administered at milligram-level doses, higher than many research peptides, reflecting its broad tissue-level activity. Injection site rotation is particularly important with GHK-Cu due to the localized copper ion activity that can cause transient inflammatory responses at the administration site.

Typical research dosing framework:

• Starting dose: 1mg per administration
• Escalation: Increase to 1.5–2mg over weeks 4–8 as tolerated
• Frequency: Daily or 3–5x per week (subcutaneous)
• Study duration: 8–12 weeks; cycle off 4–6 weeks before repeating

Commonly observed effects in research models:

• Injection site: Redness, swelling, mild bruising, or transient histamine-type response (knot or raised area beneath skin) — most pronounced at higher doses or in subjects with trace mineral imbalances; diluting the reconstituted solution prior to injection is a commonly used mitigation approach
• Systemic: Temporary dizziness, nausea, or headache are occasionally noted; copper toxicity risk is considered low at standard research doses but monitoring is warranted in extended-duration protocols
• Other: Researchers should avoid concurrent administration with high-dose copper supplementation; low-pH compounds (e.g., ascorbic acid) can destabilize the copper-peptide complex and should not be combined in the same administration

Research Stacks

GHK-Cu is commonly paired in research settings with:

• BPC-157 — BPC-157 promotes angiogenesis and upregulates growth factor signaling; GHK-Cu stimulates extracellular matrix remodeling and collagen synthesis. Together they are studied to characterize additive effects on wound healing and fibroblast proliferation markers.
• SNAP-8 — SNAP-8 inhibits SNARE complex formation to reduce muscle contraction at the dermal layer; it is paired with GHK-Cu in skin research models where matrix remodeling and neuromuscular signaling pathways are examined in parallel.
• GLOW — GLOW is a blend of BPC-157, TB-500, and GHK-Cu; additional GHK-Cu is sometimes studied alongside the full blend to examine dose-response relationships for the copper tripeptide component in tissue and skin repair models.

Purity Guarantee

Every batch is ≥99% purity. If you independently test your compound and the results don’t match — send us the COA and we’ll issue store credit, no questions asked.