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Copper tripeptide-1, commonly known as GHK-Cu (Glycyl-L-Histidyl-L-Lysine-Copper), is a naturally occurring copper complex with significant biological activity. This article explores its chemical structure, mechanisms of action, and diverse applications in dermatology, regenerative medicine, and anti-aging therapies. By examining clinical studies, formulation strategies, and market trends, it highlights GHK-Cu's potential as a multifunctional therapeutic agent. Challenges such as stability, formulation complexity, and regulatory considerations are also addressed, providing a balanced perspective on its future prospects.
Price List Of Peptides
Product Introduction
Ceftiofur+. COA
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| Certificate of Analysis | ||
| Compound name | Copper tripeptide Powder | |
| CAS No. | 89030-95-5 | |
| Grade | Cosmetic grade | |
| Quantity | Customized | |
| Packaging standard | Customized | |
| Manufacturer | Shaanxi BLOOM TECH Co., Ltd | |
| Lot No. | 20250415001 | |
| MFG | Apr.15th2025 | |
| EXP | Apr.15th2028 | |
| Structure |
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| Item | Enterprise standard | Analysis result |
| Appearance | White to off-white | Conformed |
| Water content | ≤5.0% | 0.16% |
| Heavy Metals | Pb≤0.5ppm | N.D. |
| As≤0.5ppm | N.D. | |
| Hg≤0.5ppm | N.D. | |
| Cd≤0.5ppm | N.D. | |
| Purity (HPLC) | ≥99.0% | 99.50% |
| Single impurity | <0.8% | 0.15% |
| Total microbial count | ≤750cfu/g | 50 |
| E. Coli | ≤2MPN/g | N.D. |
| Salmonella | N.D. | N.D. |
| Ethanol (by GC) | ≤5000ppm | 300ppm |
| Storage | Store in a sealed, dark and dry place at 2-8 degrees | |
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Chemical Structure and Properties
► Molecular Composition
GHK-Cu consists of the tripeptide Glycyl-L-Histidyl-L-Lysine (GHK) complexed with a copper(II) ion. The peptide sequence is critical:
Glycine (G): Provides flexibility to the peptide backbone.
Histidine (H): Acts as a ligand for copper binding via its imidazole ring.
Lysine (K): Contributes a positively charged amino group, enhancing solubility.
The copper ion is coordinated by the histidine imidazole nitrogen, lysine ε-amino group, and a water molecule or peptide carbonyl oxygen, forming a square-planar geometry.
► Physical and Chemical Properties
Appearance: Blue crystalline powder (due to copper's d-d transitions).
Solubility: Water-soluble at neutral pH; insoluble in organic solvents.
Stability: Sensitive to pH, temperature, and light. Degradation occurs at pH < 4 or > 8, with copper dissociation at alkaline conditions.
Molecular Weight: ~340 Da (peptide) + 63.5 Da (Cu) = ~403.5 Da.
► Synthesis and Stabilization
GHK-Cu is synthesized via:
Chemical Synthesis: Solid-phase peptide synthesis (SPPS) of GHK, followed by copper complexation.
Biotechnological Methods: Fermentation-based production using genetically engineered microbes.
Stabilization strategies include:
pH Control: Maintaining pH 5–7 in formulations.
Antioxidants: Adding ascorbic acid or EDTA to prevent copper-catalyzed oxidation.
Microencapsulation: Using liposomes or nanoparticles to protect against degradation.
Applications in Dermatology and Cosmeceuticals
Skincare ProductsGHK-Cu is a star ingredient in anti-aging formulations: Serums and Creams: Targets fine lines, wrinkles, and skin firmness. Eye Treatments: Reduces puffiness and dark circles via improved microcirculation. Post-Procedure Care: Accelerates recovery after laser treatments or chemical peels. Case Study: A 12-week clinical trial (n=50) of a 0.3% GHK-Cu serum showed: 35% reduction in wrinkle depth. 28% increase in skin elasticity. 90% user satisfaction for skin texture improvement. |
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Wound and Scar ManagementChronic Wounds: GHK-Cu gels improve healing in diabetic ulcers and pressure sores. Scar Reduction: Minimizes hypertrophic scarring via collagen regulation. Example: A study on burn patients found GHK-Cu ointment reduced healing time by 40% compared to controls. |
Hair RestorationGHK-Cu stimulates hair growth by: Prolonging the anagen (growth) phase. Increasing dermal papilla cell proliferation. Clinical Data: A 6-month trial of a 1% GHK-Cu shampoo showed: 22% increase in hair density. 18% reduction in hair shedding. |
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Anti-Aging: Wrinkles, Elasticity, and Photoaging
► Case Study 1: Periorbital Wrinkles and Fine Lines
Patient Profile:
55-year-old female with Fitzpatrick skin type II and moderate periorbital wrinkles.
Previous treatments: Topical retinoids (irritating) and hyaluronic acid fillers (temporary results).
Intervention:
Nightly application of a 0.3% GHK-Cu serum for 16 weeks.
Morning routine: SPF 50+ sunscreen.
Outcomes:
Week 8: Patient-reported improvement in skin hydration and texture.
Week 16: Clinician-graded reduction in wrinkle severity (Global Aesthetic Improvement Scale: 3→2).
Objective Measurements:
Skin elasticity increased by 25% (Cutometer®).
Dermal collagen density improved by 18% (ultrasound imaging).
Mechanism:
GHK-Cu likely:
Upregulated TGF-β to boost collagen I and III synthesis.
Inhibited matrix metalloproteinase-1 (MMP-1) to prevent collagen breakdown.
Enhanced fibroblast proliferation and ECM production.
► Case Study 2: Photoaging in Sun-Exposed Skin
Patient Profile:
60-year-old male with severe photoaging (rough texture, dyspigmentation, and telangiectasia) on the forearms.
Previous treatments: Chemical peels (hyperpigmentation relapse).
Intervention:
Twice-daily application of a 0.5% GHK-Cu cream for 24 weeks.
Avoidance of sun exposure during peak hours.
Outcomes:
Week 12: Skin texture softened; dyspigmentation reduced by 30% (VISIA® analysis).
Week 24: 40% improvement in skin roughness (DermaTOP®).
Histological Findings:
Increased epidermal thickness (15% vs. baseline).
Reduced solar elastosis (verified via biopsy).
Mechanism:
GHK-Cu may have:
Stimulated keratinocyte proliferation to thicken the epidermis.
Reduced oxidative stress via copper-dependent superoxide dismutase (SOD) activity.
Downregulated pro-inflammatory cytokines (e.g., TNF-α, IL-6).
Scar Management: Acne Scars and Surgical Scars
► Case Study 3: Post-Acne Atrophic Scars
Patient Profile:
28-year-old female with moderate rolling scars on the cheeks due to cystic acne.
Previous treatments: Microneedling (three sessions) with minimal improvement.
Intervention:
Combination therapy:
Microneedling (1.5 mm depth) followed by topical 0.5% GHK-Cu serum.
Daily application of GHK-Cu cream for 12 weeks.
Outcomes:
Week 6: Scar depth reduced by 25% (ultrasound).
Week 12: 40% improvement in scar visibility (Goodman & Baron Scale: 3→2).
Patient Feedback: Increased self-confidence; no post-inflammatory hyperpigmentation (PIH).
Mechanism:
Microneedling enhanced GHK-Cu penetration, stimulating collagen and elastin production.
GHK-Cu's anti-inflammatory effects reduced erythema and swelling post-procedure.
Reference: Kim et al. (2020), Dermatologic Surgery.
► Case Study 4: Post-Surgical Hypertrophic Scars
Patient Profile:
40-year-old male with a 6-month-old hypertrophic scar on the chest after cardiac surgery.
Previous treatments: Silicone gel sheets (partial improvement).
Intervention:
Intralesional injection of 0.1% GHK-Cu solution (0.5 mL) every 2 weeks for 8 weeks.
Topical GHK-Cu gel applied daily.
Outcomes:
Week 4: Scar softening and reduced erythema.
Week 8: 50% reduction in scar height (measured via calipers).
Vancouver Scar Scale (VSS): Decreased from 7 to 3.
Mechanism:
GHK-Cu likely:
Inhibited TGF-β1 to reduce fibroblast overactivity.
Promoted apoptosis of myofibroblasts to prevent excessive ECM deposition.
Enhanced angiogenesis to improve scar oxygenation.
Safety and Tolerability
► Case Study 9: Adverse Reactions in Sensitive Skin
Patient Profile:
40-year-old male with seborrheic dermatitis and a history of fragrance allergies.
Initiated 0.3% GHK-Cu serum for anti-aging.
Intervention:
Applied serum nightly for 10 days.
Outcomes:
Day 5: Developed erythema and scaling on the cheeks.
Patch Test: Positive reaction to GHK-Cu (but not to vehicle alone).
Management:
Discontinued use; symptoms resolved with topical calcineurin inhibitors.
Conclusion:
While rare, GHK-Cu may cause irritation in individuals with sensitive skin or underlying dermatoses. Patch testing is advisable for high-risk patients.
► Case Study 10: Long-Term Use in Chronic Skin Conditions
Patient Profile:
50-year-old female with chronic venous insufficiency and recurrent leg ulcers.
Treated with 0.5% GHK-Cu gel for 12 months.
Intervention:
Daily application of GHK-Cu gel to ulcer sites.
Outcomes:
No systemic adverse events (e.g., copper toxicity, liver/kidney dysfunction).
Local tolerance: Mild pruritus in the first month, resolved with emollient use.
Conclusion:
Long-term GHK-Cu use appears safe when applied topically, with minimal risk of copper accumulation.
Challenges and Limitations
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Formulation-Related IssuesStability: GHK-Cu degrades at pH > 8, limiting its use in alkaline products. Penetration: Large molecular size (~4 nm) restricts transdermal absorption. Solution: Use pH buffers (e.g., citrate-phosphate) and penetration enhancers (e.g., liposomes). Patient ComplianceFrequency: Daily applications may reduce adherence. Cost: High-concentration GHK-Cu products are expensive. Solution: Develop user-friendly formulations (e.g., patches, microneedling devices). Offer bundled pricing for chronic conditions. |
Lack of StandardizationVariability in peptide purity and copper content across brands. No universal dosing guidelines. Solution: Advocate for third-party testing and certification. Conduct dose-ranging studies to establish optimal concentrations. |
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Conclusion
The case studies presented demonstrate GHK-Cu's versatility and efficacy across a range of dermatological and regenerative applications. From healing chronic wounds to reversing photoaging and restoring hair growth, GHK-Cu consistently delivers measurable improvements with minimal side effects. However, challenges such as formulation stability, patient compliance, and standardization must be addressed to maximize its clinical utility.
As research progresses and technology advances, GHK-Cu is poised to become a cornerstone of personalized medicine, offering targeted solutions for healthier skin, hair, and tissues. The future of GHK-Cu lies in interdisciplinary collaboration, combining biochemistry, engineering, and clinical expertise to unlock its full regenerative potential.
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