GHK-Cu 60mg — Vial Spec, Reconstitution Math & COA

GHK-Cu 60mg Vial Specifications and Research Overview

A 60mg vial of GHK-Cu contains 60 milligrams of lyophilized Glycyl-L-Histidyl-L-Lysine copper complex (copper tripeptide-1) stabilized in a vacuum-sealed, borosilicate glass vial. High-mass configurations such as 60mg are primarily selected by academic, pharmaceutical, and biotechnology laboratories carrying out longitudinal high-throughput screening, multi-plate cell culture assays, or multi-subject animal models where lot-to-lot consistency across extended protocols is critical. Utilizing a single larger mass vial minimizes batch variability across serial dilutions and reduces container-closure interaction risks across prolonged experimental timelines.

GHK-Cu is a naturally occurring human tripeptide chelated with a divalent copper ion (Cu2+). In biological systems, it acts as a signal peptide and carrier protein involved in extracellular matrix (ECM) homeostasis. In laboratory models, researchers evaluate the GHK-Cu research peptide for its capacity to regulate gene expression profiles associated with structural protein expression, cellular migration, and tissue repair kinetics.

Molecular Profile and Preclinical Mechanism of Action

The molecular formula of GHK-Cu is C14H24CuN6O4, with a molecular mass of approximately 403.93 g/mol. The structural integrity of the complex depends on the precise coordination of the copper ion by the nitrogen atoms of the histidine imidazole ring, the glycine amino terminus, and the peptide backbone amide groups. This high-affinity chelation prevents premature ion dissociation under physiological pH conditions.

Preclinical studies suggest that GHK-Cu modulates the transcriptomic output of fibroblasts and structural cells. In vitro data indicate that exposure to GHK-Cu upregulates messenger RNA (mRNA) expression for collagen types I and III, tropoelastin, and glycosaminoglycans like decorin and hyaluronic acid. Additionally, animal studies demonstrate its potential role in accelerating wound closure and mitigating fibrotic scarring by balancing matrix metalloproteinases (MMPs) and tissue inhibitors of metalloproteinases (TIMPs). For broader context on related peptide classes, explore our tissue repair research hub.

PX1 Research Catalog Sizing and Availability Notice

PX1 Research maintains rigorous inventory standards for all synthesized compounds. While high-yield research protocols frequently request 60mg custom fills, primary catalog availability varies depending on production run schedules and batch demand. Researchers can inspect current catalog offerings via the main PX1 peptide catalog to select standard stock sizes or review custom synthesis capabilities.

When evaluating whether to source a single 60mg vial versus multiple smaller mass units (e.g., 10mg, 20mg, or 50mg), research teams should consider reconstitution frequency, aliquot workflow, stability limits post-reconstitution, and total volume requirements per assay. PX1 provides lot-matched, analytical verification regardless of fill size to ensure identical chemical purity across all unit volumes.

Reconstitution Math for 60mg GHK-Cu Vials

Accurate reconstitution requires calculated volume delivery using sterile, unpreserved or preserved diluents (such as Bacteriostatic Water containing 0.9% benzyl alcohol or Sterile Water for Injection). Because a 60mg mass is substantially higher than standard analytical aliquots, careful volumetric math ensures precise working concentrations:

• Reconstitution with 1.0 mL Diluent: Yields a final concentration of 60.0 mg/mL (60.0 µg/µL). This high-density stock solution is ideal for compact micro-aliquot storage or master mix preparation for high-density 96-well plate assays. • Reconstitution with 2.0 mL Diluent: Yields a final concentration of 30.0 mg/mL (30.0 µg/µL). This medium-density concentration balances pipetting precision with total volume manageable in standard microcentrifuge tubes. • Reconstitution with 3.0 mL Diluent: Yields a final concentration of 20.0 mg/mL (20.0 µg/µL). This concentration simplifies standard working dilutions, such as transferring 10 µL to achieve 200 µg of target compound.

To verify custom diluent volumes, target working concentrations, or micro-liter delivery protocols, researchers should utilize our interactive reconstitution calculator.

Aliquot Planning and Storage Protocols for High-Mass Vials

Due to the 60mg total mass, reconstituting the entire vial for immediate single-day use is rarely efficient. Repeated freeze-thaw cycles significantly degrade peptide bonds and accelerate copper ion dissociation. Consequently, establishing an aliquot protocol immediately upon reconstitution is mandatory for maintaining compound stability.

Following initial reconstitution, the stock solution should be divided under a laminar flow hood into single-use micro-aliquots using sterile, polypropylene micro-centrifuge tubes. Freeze these aliquots immediately at -20°C or -80°C. Frozen liquid aliquots typically remain stable for up to 3 to 6 months depending on temperature and solvent. Unreconstituted lyophilized vials must be stored at -20°C in a desiccated environment away from light exposure. All PX1 compounds ship with protective packaging to ensure stability prior to laboratory receipt.

Analytical Quality Standards: HPLC, MS, and COA Verification

High-mass peptide formats require strict analytical verification to guarantee that no aggregation, degradation, or counter-ion imbalance occurred during high-yield synthesis or freeze-drying. PX1 Research subjects every batch to rigorous third-party testing within an ISO 17025 accredited laboratory environment.

Purity is verified via High-Performance Liquid Chromatography (HPLC), ensuring a target purity rating of ≥98.0%. Mass confirmation is executed via Electrospray Ionization Mass Spectrometry (ESI-MS) to validate exact molecular weight match (403.93 g/mol). Furthermore, endotoxin testing (LAL assay) confirms levels remain strictly below safe research thresholds (<0.01 EU/µg). Every order includes a downloadable, lot-specific Certificate of Analysis matching the exact lot identifier on the vial label.

Comparative Analysis: GHK-Cu vs. Alternative Remodeling Compounds

When designing tissue repair, matrix remodeling, or cellular migration models, investigators often evaluate GHK-Cu alongside other signal peptides and synthetic fragments. Comparing physical characteristics, pathways, and target biological markers helps determine optimal experimental design.

While GHK-Cu focuses heavily on dermal fibroblast gene modulation, collagen synthesis, and copper delivery to enzyme pathways, synthetic repair peptides act through distinct signaling cascades. For instance, BPC-157 is frequently researched for its influence on VEGFR2 expression and gut-vascular axis repair pathways. Similarly, TB-500 (Thymosin Beta-4 fragment) targets actin sequestration and cell migration kinetics, whereas Epithalon acts primarily within telomerase enzymatic activity and circadian endocrine research models. Integrating multiple research peptides within comparative arms allows researchers to isolate specific matrix pathways.

In Vitro and Preclinical Application Frameworks

In vitro assays utilizing GHK-Cu typically evaluate dermal fibroblast proliferation, extracellular matrix protein deposition, and inflammatory cytokine suppression (such as TNF-alpha and IL-6). In 2D and 3D organotypic skin models, GHK-Cu is added to culture media at nanomolar to micromolar concentrations to observe changes in epidermal thickness and basement membrane integrity.

In preclinical rodent models, topically applied or locally delivered GHK-Cu formulations are studied for their impact on full-thickness wound healing models. Evaluated parameters include re-epithelialization speed, tensile strength of healed tissue, and immunohistochemical density of collagen fibers. These experiments depend on precise reconstitution math to maintain consistent dosing per square millimeter of test surface area.

Handling, Solvent Selection, and Solution Stability

Selection of the appropriate solvent for GHK-Cu 60mg depends on downstream analytical requirements. For short-term assays where benzyl alcohol might interfere with sensitive cell cultures, sterile unpreserved 0.9% sodium chloride or sterile water for injection (WFI) is preferred. For multi-week bench use requiring repeated vial access, Bacteriostatic Water containing 0.9% benzyl alcohol inhibits microbial contamination.

Maintain solution pH between 5.5 and 7.0. Highly acidic or basic environments can cause copper decoupling, reducing the bioactive copper-bound fraction and altering experimental outcomes. Gently swirl or invert the vial during reconstitution; vortexing should be avoided to prevent protein shearing and foaming.

Ordering Specifications, Wholesale Procurement, and Batch Consistency

PX1 Research operates out of GMP-compliant facilities within the United States, utilizing CA and AZ distribution centers to provide rapid, same-day dispatch (Monday–Friday) for institutional orders. High-volume laboratories requiring bulk mass fills, 60mg unit configurations, or dedicated batch reservations can coordinate through our bulk lab accounts portal.

By enforcing ISO 17025 lab testing protocols, state-of-the-art HPLC purification, and strict endotoxin controls, PX1 Research provides primary investigators with reliable batch-to-batch consistency. All compounds are supplied exclusively as research chemicals for laboratory, analytical, and preclinical testing — strictly not for human or veterinary applications.