A-H-K copper
A newer copper peptide being researched for hair growth — may stimulate follicles through a different pathway than GHK-Cu.
Also known as: AHK Copper Peptide, Alanine-Histidine-Lysine Copper
Last reviewed: April 2026
AHK-Cu is a tripeptide-copper complex (like GHK-Cu) being studied specifically for hair follicle stimulation. Early research suggests it may activate different growth signaling pathways than GHK-Cu, potentially offering complementary hair growth support.
Scalp solution or serum
Frequency
Daily
Pain Level
○○○ None
Self-Administered
Yes — at home
Typical Range
Research concentrations
Month 2–3
Potential improvements in hair quality.
Month 6+
Measurable hair changes if responsive.
Overall: Mild
Scalp irritation
Mild irritation possible.
• Wilson's disease
• Copper allergy
• No significant known interactions
Pregnancy: Not studied. Avoid.
Less studied than GHK-Cu. May work through Wnt pathway vs GHK-Cu's gene expression approach. Both deliver copper. Very early research.
GHK-Cu
A naturally occurring copper peptide that stimulates collagen, promotes skin repair, and supports hair growth.
Minoxidil
A topical treatment that stimulates hair follicles to grow thicker, longer hair — originally developed as a blood pressure medication.
This compound is in early research stages. We do not currently offer it.
Looking for something similar? See what we offer for Skin & Hair.
This compound is in early research stages. It has not been FDA-approved and may not be available through compounding pharmacies. The information below is for educational purposes only. Do not attempt to self-administer research compounds.