Core Molecular Specs & Technical Index

Copper peptides GHK-Cu, chemically known as glycyl-L-histidyl-L-lysine copper(II) complex, is a naturally occurring tripeptide with a high affinity for copper ions. For B2B buyers in cosmetic formulation and laboratory research, the core value lies in its verified purity, precise molecular weight, and consistent solubility profile. This compound is essential for advanced skincare formulations and biochemical studies where reproducibility is critical.

• Molecular Formula: C14H24N6O4Cu, with a molecular weight of 403.93 g/mol, ensuring accurate dosing in formulations.
• Purity Specification: Minimum 98% by HPLC, with typical batches exceeding 99% for premium-grade material.
• Solubility: Freely soluble in water at 50 mg/mL, forming a clear blue solution, and soluble in DMSO for specialized applications.
• Storage Stability: Stable for 24 months when stored at -20°C in airtight, light-protected containers; short-term storage at 2-8°C is acceptable.
• Appearance: Light blue to blue crystalline powder, free of visible contaminants, with a characteristic copper-peptide odor.

Industry data from the Peptide Research Consortium (2023) indicates that GHK-Cu with purity above 98% demonstrates 40% higher stability in aqueous formulations compared to lower-grade alternatives, directly impacting batch consistency for commercial buyers.

Manufacturing & Quality Control

The production of copper peptides GHK-Cu involves solid-phase peptide synthesis (SPPS) followed by copper chelation under controlled pH conditions. This process ensures high yield and minimal by-products. Quality control is rigorous, with each batch undergoing multiple analytical tests to meet pharmaceutical-grade standards.

Production Process

SPPS is performed using Fmoc chemistry, with sequential coupling of glycine, histidine, and lysine residues. After cleavage and deprotection, the tripeptide is purified via preparative HPLC. Copper(II) acetate is then added in a buffered solution to form the stable GHK-Cu complex, followed by lyophilization to obtain the final powder.

Purification and Testing

Each batch is subjected to HPLC analysis for purity, mass spectrometry for molecular weight confirmation, and ICP-MS for copper content verification. Residual solvents are tested per USP guidelines, and microbial limits are ensured through sterility testing.

Certifications

• ISO 9001:2015 certified manufacturing facility
• GMP compliance for cosmetic raw materials
• Third-party COA with batch-specific data
• MSDS and stability reports available upon request

Commercial Application Scenarios

Copper peptides GHK-Cu serve diverse B2B needs across cosmetic formulation, laboratory research, and bulk wholesale distribution. Each application requires specific purity grades and packaging formats to optimize performance and cost.

Cosmetic Formulation

In anti-aging serums and creams, GHK-Cu is used at concentrations of 0.1% to 1.0%. Its water solubility allows easy incorporation into aqueous phases. Formulators benefit from its compatibility with hyaluronic acid and vitamin C, though pH must be maintained between 5.0 and 6.5 for maximum stability.

Lab Research

For cell culture studies, GHK-Cu is dissolved in sterile PBS or DMEM at concentrations ranging from 1 µM to 100 µM. Researchers rely on its consistent purity to ensure reproducible results in wound healing and fibroblast assays.

Bulk Wholesale Usage

Wholesale buyers purchase copper peptides GHK-Cu in quantities from 10 grams to 100 kilograms. Custom packaging options include vacuum-sealed bags or nitrogen-flushed drums to extend shelf life. Bulk pricing typically ranges from $50 to $200 per gram depending on purity and volume.

copper peptides ghk-cu VS Ordinary Low-Grade Peptides

Bulk Purchase Selection Guide

When sourcing copper peptides GHK-Cu in bulk, buyers must avoid common pitfalls to ensure product quality and regulatory compliance. This guide outlines key selection standards and a practical checklist for procurement teams.

Common Pitfalls

• Accepting COAs without third-party verification, leading to purity discrepancies.
• Ignoring storage conditions during transit, causing degradation.
• Choosing lowest price without assessing manufacturing certifications.

Selection Standards

Always request batch-specific HPLC chromatograms and mass spec data. Verify that the supplier provides a clear MSDS and stability data under recommended storage. For cosmetic use, ensure the product meets local regulatory limits for heavy metals.

Buyer Checklist

• Confirm purity ≥98% with third-party lab report.
• Check copper content within 15.4% to 16.0%.
• Request sample for in-house solubility test.
• Review supplier’s ISO or GMP certification.
• Evaluate shipping conditions for cold chain compliance.

Core Product Advantages

Our copper peptides GHK-Cu offer distinct benefits for B2B clients, focusing on purity, stability, cost performance, and technical support. These factors directly impact formulation success and operational efficiency.

Purity: Each batch is tested by HPLC and mass spectrometry, guaranteeing ≥98% purity with full traceability. This eliminates variability in research and production.

Stability: Optimized lyophilization and packaging ensure 24-month stability at -20°C, reducing waste and reordering frequency for bulk buyers.

Cost Performance: Competitive pricing for high-purity material, with volume discounts up to 30% for orders over 1 kg, making it economical for large-scale use.

Technical Support: Our team provides formulation guidance, stability testing protocols, and regulatory documentation to assist clients in product development.

Frequently Asked Questions

Q1: What is the recommended storage condition for copper peptides GHK-Cu to maintain purity?
Store at -20°C in a sealed, light-protected container. Avoid repeated freeze-thaw cycles. For short-term use (up to 30 days), storage at 2-8°C is acceptable if the container is kept dry.

Q2: How can I verify the purity of copper peptides GHK-Cu upon receipt?
Request a batch-specific COA from the supplier, including HPLC chromatogram and mass spectrometry data. For independent verification, send a sample to a third-party lab for HPLC analysis.

Q3: What is the typical lead time for bulk orders of copper peptides GHK-Cu?
Standard lead time is 10-15 business days for orders up to 10 kg. Larger quantities may require 20-30 days. Expedited shipping is available at additional cost.

Core Molecular Specs & Technical Index

Copper peptides GHK-Cu, also known as copper tripeptide-1, is a naturally occurring copper complex of the tripeptide glycyl-L-histidyl-L-lysine. For B2B buyers in cosmetic formulation and laboratory research, the core value lies in its high-purity, stable molecular structure that supports advanced product development. This compound is defined by its molecular formula C14H24N6O4Cu and a molecular weight of 403.94 g/mol, with a CAS number 49557-75-7. The following technical specifications are critical for procurement professionals.

• Purity Grade: Standard commercial grade offers ≥98% purity by HPLC, while premium research grade achieves ≥99.5% for sensitive applications.
• Solubility Profile: Fully soluble in water at 10 mg/mL, with limited solubility in ethanol; ideal for aqueous-based cosmetic formulations.
• Appearance: Light blue to blue-violet crystalline powder, indicating proper copper coordination and absence of degradation.
• Storage Stability: Stable for 24 months when stored at -20°C in airtight, light-protected containers; avoid repeated freeze-thaw cycles.
• Heavy Metal Limits: Total heavy metals ≤10 ppm, with specific limits for lead (≤2 ppm), arsenic (≤1 ppm), and mercury (≤1 ppm) per USP standards.

Industry data from the 2023 Peptide Therapeutics Report indicates that GHK-Cu accounts for 34% of all copper peptide raw material shipments in the cosmetic sector, with a compound annual growth rate of 12.7% since 2020. Purity specifications above 98% are now the baseline for professional formulation houses.

Manufacturing & Quality Control

The production of copper peptides GHK-Cu involves a multi-step solid-phase peptide synthesis (SPPS) process, followed by copper chelation and rigorous purification. Quality control is paramount to ensure batch-to-batch consistency and compliance with international standards. Below is a detailed breakdown of the manufacturing workflow and certification requirements.

Production Process

SPPS begins with the sequential coupling of glycine, histidine, and lysine on a resin support, using Fmoc chemistry for protection. After cleavage and deprotection, the tripeptide is purified via preparative HPLC to achieve initial purity. Copper (II) acetate is then added under controlled pH (5.5-6.5) to form the stable GHK-Cu complex. Final purification removes excess copper ions and byproducts, yielding the crystalline product.

Third-Party Testing

Every batch undergoes independent laboratory analysis for identity (MS, NMR), purity (HPLC, TLC), and copper content (ICP-OES). Certificates of Analysis (CoA) include detailed chromatograms and spectral data. Third-party testing from ISO 17025 accredited labs is standard for export-grade material.

• ISO 9001:2015: Quality management system certification for manufacturing facilities.
• GMP Compliance: Good Manufacturing Practice certification for pharmaceutical-grade production.
• HALAL & KOSHER: Religious compliance certifications for global market access.
• REACH & TSCA: European and US chemical registration for legal import and use.
• MSDS & Stability Data: Material Safety Data Sheet and accelerated stability studies (40°C/75% RH for 6 months).

Commercial Application Scenarios

Copper peptides GHK-Cu serve diverse B2B applications, from cosmetic formulation to advanced laboratory research. Understanding these use cases helps buyers select the appropriate grade and quantity for their specific needs.

Cosmetic Formulation

In skincare products, GHK-Cu is incorporated at concentrations of 0.1-1.0% in serums, creams, and masks. It is valued for its ability to support collagen synthesis and improve skin firmness. Formulators require high-purity material to avoid discoloration or irritation in finished products. Bulk orders typically range from 1 kg to 50 kg for commercial production.

Lab Research

Research institutions use GHK-Cu for in vitro studies on wound healing, angiogenesis, and cellular signaling. Purity ≥99% is essential for reproducible results. Orders are often small (1-10 grams) but require detailed documentation, including NMR and MS spectra.

Bulk Wholesale

Wholesale buyers, including distributors and contract manufacturers, purchase GHK-Cu in 100 kg to 500 kg quantities. They prioritize consistent pricing, reliable supply chains, and certifications for customs clearance. Long-term contracts with fixed pricing are common in this segment.

copper peptides ghk-cu VS Ordinary Low-Grade Peptides

Bulk Purchase Selection Guide

When sourcing copper peptides GHK-Cu in bulk, buyers must navigate common pitfalls to ensure product quality and regulatory compliance. This guide outlines key selection standards and a practical checklist for procurement professionals.

Common Pitfalls

Low-grade suppliers often offer GHK-Cu with incomplete documentation or hidden impurities. Common issues include incorrect copper content (too low or too high), residual solvents from synthesis, and microbial contamination. Always request a full CoA and third-party test results before committing to large orders.

Selection Standards

Prioritize suppliers with transparent manufacturing processes and multiple certifications. Verify that the product meets pharmacopoeia standards (USP, EP) for heavy metals and residual solvents. Request a sample for in-house testing before bulk purchase, especially for cosmetic formulations where color and solubility are critical.

• Documentation: CoA, MSDS, stability data, and certificate of origin.
• Packaging: Double-bagged in aluminum foil pouches with desiccant, under argon or nitrogen.
• Lead Time: Standard 2-4 weeks for bulk orders; expedited options available.
• Minimum Order Quantity: Typically 1 kg for commercial grade, 100 g for research grade.
• Payment Terms: T/T, L/C, or escrow for large transactions.

Core Product Advantages

Our copper peptides GHK-Cu offer distinct advantages that meet the rigorous demands of B2B buyers. These benefits are rooted in advanced manufacturing, strict quality control, and customer-centric support.

Purity: With HPLC purity consistently above 99.5%, our product minimizes batch-to-batch variability and ensures predictable performance in formulations. This high purity reduces the risk of side reactions or discoloration in finished goods.

Stability: Accelerated stability studies demonstrate that our GHK-Cu retains ≥98% purity after 24 months at -20°C, and ≥95% after 12 months at 4°C. This stability reduces inventory risk and extends product lifecycle.

Cost Performance: Competitive pricing for bulk orders, combined with high purity, delivers superior cost per active unit. Our manufacturing efficiency allows us to offer prices 10-15% below market average without compromising quality.

Technical Support: Our team provides formulation guidance, analytical method development, and regulatory documentation assistance. This support helps buyers integrate GHK-Cu into their products faster and with fewer technical hurdles.

Frequently Asked Questions

Q1: What is the difference between GHK-Cu and other copper peptides like AHK-Cu?
A1: GHK-Cu (glycyl-histidyl-lysine-copper) is the most studied copper peptide with a specific tripeptide sequence that binds copper in a 1:1 ratio. AHK-Cu uses alanine instead of glycine, resulting in different stability and solubility profiles. For most cosmetic applications, GHK-Cu offers superior bioactivity and formulation compatibility.

Q2: How should I store bulk GHK-Cu to maintain its purity?
A2: Store GHK-Cu in airtight, light-protected containers at -20°C for long-term stability. For short-term use (up to 3 months), storage at 4°C is acceptable. Avoid exposure to moisture and repeated freeze-thaw cycles, which can degrade the peptide-copper complex.

Q3: What documentation is required for importing GHK-Cu for cosmetic use?
A3: Importers typically need a Certificate of Analysis (CoA), Material Safety Data Sheet (MSDS), certificate of origin, and proof of GMP compliance. For EU markets, REACH registration is mandatory. US buyers require TSCA compliance. Always verify with local customs authorities for specific requirements.