AHK-Cu

Research-Documented Benefits

• Hair Growth Stimulation — AHK-Cu (Ala-His-Lys-Cu) has shown promotion of hair follicle enlargement and extended anagen phase in dermal papilla cell studies.
• Skin Regeneration — Research demonstrates enhanced fibroblast proliferation and extracellular matrix production, supporting dermal repair and rejuvenation.
• Collagen Synthesis — Similar to GHK-Cu, AHK-Cu promotes collagen production in skin fibroblast cultures, contributing to improved skin thickness and elasticity.
• Copper Delivery — Serves as an effective copper transport peptide, delivering Cu2+ ions essential for numerous enzymatic processes including lysyl oxidase (collagen cross-linking).
• Antioxidant Support — Copper-dependent superoxide dismutase activation provides cellular protection against oxidative stress-mediated damage.

Mechanism of Action

AHK-Cu (Ala-His-Lys with Cu2+) is a tripeptide-copper complex structurally related to GHK-Cu, with the glycine residue replaced by alanine. This substitution provides distinct receptor binding properties while maintaining copper transport capability.

Primary Pathways

• Copper-Dependent Enzyme Activation — Like GHK-Cu, AHK-Cu delivers copper ions to activate lysyl oxidase, superoxide dismutase, and cytochrome c oxidase, supporting collagen cross-linking and antioxidant defense.
• Dermal Papilla Stimulation — Research shows AHK-Cu stimulates dermal papilla cells, the signaling centers at the base of hair follicles that control hair growth cycling.
• Wnt/Beta-Catenin Pathway — Studies suggest activation of Wnt signaling in hair follicle stem cells, promoting transition from telogen (resting) to anagen (growth) phase.
• ECM Remodeling — Promotes synthesis of collagen, fibronectin, and other extracellular matrix components essential for dermal structural integrity.

AHK-Cu's mechanism overlaps significantly with GHK-Cu but shows enhanced specificity for dermal and follicular targets, making it a subject of focused research in dermatological applications.

Research Protocol Guidelines

All protocols described are for in vitro and in vivo research purposes only. Not for human use.

Reconstitution

Reconstitute lyophilized AHK-Cu with bacteriostatic water. Similar to GHK-Cu, the reconstituted solution may display a blue tint from the copper ion complex.

Research Dosing (Preclinical Literature)

• Topical (dermal): 0.01-0.5% in cream or serum formulations for skin and hair follicle research
• In vitro: 1-50 nM in dermal papilla cell culture and hair follicle organ culture models
• Comparative studies: Often studied alongside GHK-Cu at equimolar concentrations to compare efficacy in dermal and follicular assays

Storage

Store lyophilized powder at -20°C. Reconstituted at 2-8°C, use within 14 days. Handle similarly to GHK-Cu with attention to minimizing oxidation of the copper complex.

Safety & Handling Information

For research use only. Not intended for human or veterinary diagnostic or therapeutic use.

Storage Requirements

• Lyophilized: -20°C, desiccated, protected from light
• Reconstituted: 2-8°C, use within 14 days

Preclinical Safety Profile

AHK-Cu shares a safety profile comparable to GHK-Cu. As a naturally derived copper tripeptide, it demonstrates low immunogenicity and minimal cytotoxicity at standard research concentrations in dermal and follicular cell culture models.

Known Considerations

• Same copper-related considerations as GHK-Cu: potential for copper accumulation in chronic high-dose studies
• Dermal application studies show excellent local tolerability
• Limited published toxicology data compared to GHK-Cu; extrapolate with appropriate caution

Handling

Standard laboratory PPE. Same copper-related handling precautions as GHK-Cu.

Frequently Asked Questions