# AHK-Cu: Reference Overview and Reconstitution Notes - facts

Canonical page: https://www.preppinpeppers.com/blogs/the-lab/ahk-cu
Type: Lab article

## 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 ID | Category | Entity | Attribute | Value | Source | Evidence |
|---|---|---|---|---|---|---|
| ahk-cu:title | identity | AHK-Cu: Reference Overview and Reconstitution Notes | title | AHK-Cu: Reference Overview and Reconstitution Notes | Lab article (https://www.preppinpeppers.com/blogs/the-lab/ahk-cu) | https://www.preppinpeppers.com/blogs/the-lab/ahk-cu |
| ahk-cu:published | identity | AHK-Cu: Reference Overview and Reconstitution Notes | published | 2026-08-18 | Lab article (https://www.preppinpeppers.com/blogs/the-lab/ahk-cu) | https://www.preppinpeppers.com/blogs/the-lab/ahk-cu |
| ahk-cu:author | identity | AHK-Cu: Reference Overview and Reconstitution Notes | author | Preppin' Peppers Editorial Team | Lab article (https://www.preppinpeppers.com/blogs/the-lab/ahk-cu) | https://www.preppinpeppers.com/blogs/the-lab/ahk-cu |
| ahk-cu:topics | identity | AHK-Cu: Reference Overview and Reconstitution Notes | topics | reference, research | Lab article (https://www.preppinpeppers.com/blogs/the-lab/ahk-cu) | https://www.preppinpeppers.com/blogs/the-lab/ahk-cu |
| ahk-cu:summary | content | AHK-Cu: Reference Overview and Reconstitution Notes | summary | 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. | Lab article (https://www.preppinpeppers.com/blogs/the-lab/ahk-cu) | https://www.preppinpeppers.com/blogs/the-lab/ahk-cu |
| ahk-cu:section-1 | content | AHK-Cu: Reference Overview and Reconstitution Notes | section | What it is | Lab article (https://www.preppinpeppers.com/blogs/the-lab/ahk-cu) | https://www.preppinpeppers.com/blogs/the-lab/ahk-cu |
| ahk-cu:section-2 | content | AHK-Cu: Reference Overview and Reconstitution Notes | section | What it is | Lab article (https://www.preppinpeppers.com/blogs/the-lab/ahk-cu) | https://www.preppinpeppers.com/blogs/the-lab/ahk-cu |
| ahk-cu:section-3 | content | AHK-Cu: Reference Overview and Reconstitution Notes | section | Research context | Lab article (https://www.preppinpeppers.com/blogs/the-lab/ahk-cu) | https://www.preppinpeppers.com/blogs/the-lab/ahk-cu |
| ahk-cu:section-4 | content | AHK-Cu: Reference Overview and Reconstitution Notes | section | Status | Lab article (https://www.preppinpeppers.com/blogs/the-lab/ahk-cu) | https://www.preppinpeppers.com/blogs/the-lab/ahk-cu |
| ahk-cu:section-5 | content | AHK-Cu: Reference Overview and Reconstitution Notes | section | Reconstitution and handling | Lab article (https://www.preppinpeppers.com/blogs/the-lab/ahk-cu) | https://www.preppinpeppers.com/blogs/the-lab/ahk-cu |
| ahk-cu:section-6 | content | AHK-Cu: Reference Overview and Reconstitution Notes | section | Status in sport | Lab article (https://www.preppinpeppers.com/blogs/the-lab/ahk-cu) | https://www.preppinpeppers.com/blogs/the-lab/ahk-cu |
| ahk-cu:section-7 | content | AHK-Cu: Reference Overview and Reconstitution Notes | section | Related reading | Lab article (https://www.preppinpeppers.com/blogs/the-lab/ahk-cu) | https://www.preppinpeppers.com/blogs/the-lab/ahk-cu |
| ahk-cu:section-9 | content | AHK-Cu: Reference Overview and Reconstitution Notes | section | What the research community gets wrong about AHK-Cu | Lab article (https://www.preppinpeppers.com/blogs/the-lab/ahk-cu) | https://www.preppinpeppers.com/blogs/the-lab/ahk-cu |
| ahk-cu:source-pubchem-ncbi-nlm-nih-gov | source | AHK-Cu: Reference Overview and Reconstitution Notes | cites | NCBI PubChem CID 168431292: AHK-Cu (C15H24ClCuN6O4-) - pubchem.ncbi.nlm.nih.gov | Lab article (https://www.preppinpeppers.com/blogs/the-lab/ahk-cu) | https://pubchem.ncbi.nlm.nih.gov/compound/168431292 |
| ahk-cu:source-pubmed-ncbi-nlm-nih-gov | source | AHK-Cu: Reference Overview and Reconstitution Notes | cites | Pyo et al., Arch Pharm Res 2007: The effect of tripeptide-copper complex on human hair growth in vitro - pubmed.ncbi.nlm.nih.gov | Lab article (https://www.preppinpeppers.com/blogs/the-lab/ahk-cu) | https://pubmed.ncbi.nlm.nih.gov/17703734/ |

## 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.

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