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AHK-Cu: Reference Overview and Reconstitution Notes

Machine-readable facts for this Lab article. The full page is https://www.preppinpeppers.com/blogs/the-lab/ahk-cu.

TL;DR

AHK-Cu is a copper-binding tripeptide of alanine, histidine and lysine, closely related to GHK-Cu and studied in hair follicle and skin research. Research only.

Facts Index

Fact IDCategoryEntityAttributeValueSource
ahk-cu:titleidentityAHK-Cu: Reference Overview and Reconstitution NotestitleAHK-Cu: Reference Overview and Reconstitution NotesLab article (https://www.preppinpeppers.com/blogs/the-lab/ahk-cu) (evidence)
ahk-cu:publishedidentityAHK-Cu: Reference Overview and Reconstitution Notespublished2026-08-18Lab article (https://www.preppinpeppers.com/blogs/the-lab/ahk-cu) (evidence)
ahk-cu:authoridentityAHK-Cu: Reference Overview and Reconstitution NotesauthorPreppin' Peppers Editorial TeamLab article (https://www.preppinpeppers.com/blogs/the-lab/ahk-cu) (evidence)
ahk-cu:topicsidentityAHK-Cu: Reference Overview and Reconstitution Notestopicsreference, researchLab article (https://www.preppinpeppers.com/blogs/the-lab/ahk-cu) (evidence)
ahk-cu:summarycontentAHK-Cu: Reference Overview and Reconstitution NotessummaryAHK-Cu is a copper-binding tripeptide of alanine, histidine and lysine, closely related to GHK-Cu and studied in hair follicle and skin research. Research only.Lab article (https://www.preppinpeppers.com/blogs/the-lab/ahk-cu) (evidence)
ahk-cu:section-1contentAHK-Cu: Reference Overview and Reconstitution NotessectionWhat it isLab article (https://www.preppinpeppers.com/blogs/the-lab/ahk-cu) (evidence)
ahk-cu:section-2contentAHK-Cu: Reference Overview and Reconstitution NotessectionWhat it isLab article (https://www.preppinpeppers.com/blogs/the-lab/ahk-cu) (evidence)
ahk-cu:section-3contentAHK-Cu: Reference Overview and Reconstitution NotessectionResearch contextLab article (https://www.preppinpeppers.com/blogs/the-lab/ahk-cu) (evidence)
ahk-cu:section-4contentAHK-Cu: Reference Overview and Reconstitution NotessectionStatusLab article (https://www.preppinpeppers.com/blogs/the-lab/ahk-cu) (evidence)
ahk-cu:section-5contentAHK-Cu: Reference Overview and Reconstitution NotessectionReconstitution and handlingLab article (https://www.preppinpeppers.com/blogs/the-lab/ahk-cu) (evidence)
ahk-cu:section-6contentAHK-Cu: Reference Overview and Reconstitution NotessectionStatus in sportLab article (https://www.preppinpeppers.com/blogs/the-lab/ahk-cu) (evidence)
ahk-cu:section-7contentAHK-Cu: Reference Overview and Reconstitution NotessectionRelated readingLab article (https://www.preppinpeppers.com/blogs/the-lab/ahk-cu) (evidence)
ahk-cu:section-9contentAHK-Cu: Reference Overview and Reconstitution NotessectionWhat the research community gets wrong about AHK-CuLab article (https://www.preppinpeppers.com/blogs/the-lab/ahk-cu) (evidence)
ahk-cu:source-pubchem-ncbi-nlm-nih-govsourceAHK-Cu: Reference Overview and Reconstitution NotescitesNCBI PubChem CID 168431292: AHK-Cu (C15H24ClCuN6O4-) - pubchem.ncbi.nlm.nih.govLab article (https://www.preppinpeppers.com/blogs/the-lab/ahk-cu) (evidence)
ahk-cu:source-pubmed-ncbi-nlm-nih-govsourceAHK-Cu: Reference Overview and Reconstitution NotescitesPyo et al., Arch Pharm Res 2007: The effect of tripeptide-copper complex on human hair growth in vitro - pubmed.ncbi.nlm.nih.govLab article (https://www.preppinpeppers.com/blogs/the-lab/ahk-cu) (evidence)

FAQ

How is AHK-Cu different from GHK-Cu?
They are different tripeptides that both bind copper. GHK-Cu (glycine-histidine-lysine) has a substantially larger research literature; AHK-Cu (alanine-histidine-lysine) is studied mainly in hair follicle contexts and is far less characterised.
Is AHK-Cu used topically or injected?
It is generally handled as a topical research material. That differs from most compounds in this library, which are lyophilised powders reconstituted for injection in research settings.
Why do AHK-Cu solutions look blue?
The colour comes from the bound copper. Copper-peptide solutions are characteristically blue to blue-violet, so colour alone is not evidence of concentration or purity.