Product Name: Modular Peptide System D – Copper-Peptide Complex Module Classification: Advanced Module Product Information:

• Formulation Type: Copper-Peptide Serum-Emulsion
• Volume: 20 mL
• pH Range: 5.5–6.5
• Packaging: Opaque Airless UV-Protective Container
• Testing Methodology: HPLC-UV-MS
• Analytical Verification: ISO/IEC 17025 Accredited Laboratory
• System Compatibility: Phase 2, Complete Configuration, Standalone Evaluation

Analytical Composition:

• AHK-Cu: 0.10%
• Tocopherol (Vitamin E): 0.20%
• Total Peptide Content: 0.10%

Product Description: Module D is one of five products within PHP’s Modular Peptide System, a modular framework of peptide formulations designed for research evaluation. Researchers may evaluate individual modules independently or as part of three structured configurations: Phase 1, Phase 2, or the Complete Configuration. Module D is a peptide formulation centered on AHK-Cu, a copper-coordinated peptide complex representing a distinct chemistry class within the modular framework. Unlike the free peptides utilized elsewhere in the system, AHK-Cu exists as a coordinated metal complex, introducing analytical variables specific to copper coordination chemistry. Composition is independently verified through ISO/IEC 17025-accredited analytical testing using HPLC-UV-MS methodology. Batch-specific Certificates of Analysis are available through the COA-Topicals library. Module D is the only product within the framework in which the peptide exists as a coordinated metal complex rather than a free peptide. Research Framework:

• Distinct copper-coordinated peptide chemistry class
• Single-peptide composition with supporting formulation architecture
• Elevated-concentration advanced module
• Compatible with Phase 2 and Complete Configuration
• May be evaluated independently or alongside Module B
• Includes the system’s only coordinated metal-peptide complex

Formulation Characteristics:

• AHK-Cu serves as the primary peptide component at 0.10%
• Tocopherol (Vitamin E) incorporated as part of the formulation’s oxidation-management architecture
• Buffered serum-emulsion matrix engineered for copper-peptide stability
• Chelation system incorporated to support coordination-complex integrity
• Elevated pH range relative to other modules to accommodate copper-complex stability requirements
• Airless packaging minimizes oxygen exposure and supports compositional integrity
• UV-protective packaging is particularly important for copper-coordinated peptide systems

Comparative Position Within The System: Within the modular framework, Module D functions as the advanced composition and represents a distinct chemistry class relative to the other products in the system. It is analytically paired with Module B, as both products utilize elevated-concentration, single-peptide-dominant architectures while representing different formulation and chemistry frameworks. AHK-Cu also appears at a lower concentration (0.02%) within Module E, enabling comparative evaluation of the same compound at different analytical levels across the system. Copper-Peptide Selection Rationale: PHP’s formulator selected AHK-Cu as the copper-peptide component of Module D based upon formulation-engineering considerations related to compositional stability. AHK-Cu is the copper coordination complex of N-acetyl-alanyl-histidyl-lysine, an N-terminus-acetylated peptide structure. The acetylation modifies copper coordination behavior, contributing to stable formulation characteristics across the pH ranges typically encountered in aqueous peptide systems and supporting long-term compositional integrity throughout the documented shelf life of the product. This represents a formulation-design decision regarding stability and composition rather than a comparative statement regarding biological or topical activity. Product Specifications:

• Primary Peptide: AHK-Cu
• Total Peptide Content: 0.10%
• Supporting Component: Tocopherol (Vitamin E) – 0.20%
• Chemistry Class: Copper-Coordinated Peptide Complex
• Delivery Matrix: Buffered Serum-Emulsion
• Packaging: Opaque Airless UV-Protective
• Batch Verification: ISO/IEC 17025 HPLC-UV-MS

Compliance Notice: Modular Peptide System D is FOR RESEARCH USE ONLY — NOT FOR HUMAN OR VETERINARY USE. This product is not a drug, cosmetic, food, or dietary supplement and has not been evaluated or approved by the U.S. Food and Drug Administration. It is intended solely for lawful in vitro research and not for any human or animal use. By purchasing this product, buyer represents and warrants that it will be used exclusively for lawful in vitro research in compliance with all applicable laws and regulations, and assumes all responsibility for any use inconsistent with this notice.