AHK-Cu is a copper–peptide complex studied in isolated human hair follicles. Human tissue in a laboratory is not the same as treating hair loss in volunteers.
What did the study report?
A 2007 experiment found follicle elongation and dermal-papilla cell proliferation under laboratory conditions. These are tissue and cell outcomes, not clinical scalp-hair regrowth rates. Reference: AHK-Cu human hair-follicle laboratory research (2007)
How does it differ from GHK-Cu?
AHK and GHK indicate different peptide sequences. Sharing copper does not make evidence or product effects transferable.
How should regrowth claims be assessed?
Look for trials in the relevant hair-loss condition with hair counts or density and a comparator. Before-and-after images with different lighting or styling are not equivalent to controlled measurements.
Frequently asked questions
Does human follicle mean a human treatment trial?
No. This study investigated tissue outside the body.
Can GHK-Cu evidence simply stand in for AHK-Cu?
No. Match the compound and formulation.
How should this article be used?
Use it to identify the substance, understand what the cited research measured, and prepare questions for a qualified clinician. It is educational information, not an individual treatment plan.