Researchers comparing GHK-Cu and AHK-Cu are usually mapping which compound fits a given copper-peptide research question. This is descriptive reference information about how they differ, not guidance or a recommendation. Both are sold strictly for in-vitro laboratory research and are not for human or veterinary use.
| GHK-Cu | AHK-Cu | |
|---|---|---|
| Type | Copper complex of Gly-His-Lys (GHK) | Copper complex of Ala-His-Lys (AHK) |
| Primary research area | Fibroblast and ECM gene-expression research | Follicle and angiogenesis research models |
| Handling | Lyophilized; light-sensitive, store frozen protected from light | Lyophilized; light-sensitive, store frozen protected from light |
GHK-Cu is the copper complex of the tripeptide glycyl-L-histidyl-L-lysine, widely used as a reference compound in matrix-biology and fibroblast research.
GHK-Cu product page and batch COA · GHK-Cu reconstitution guide
AHK-Cu is a closely related copper tripeptide in which the first residue is alanine rather than glycine. It is studied in follicle and angiogenesis research models.
AHK-Cu product page and batch COA
These are near-identical in format (both copper tripeptides) and differ by a single residue, which is why researchers often compare them. GHK-Cu appears more often in matrix/fibroblast models and AHK-Cu in follicle/angiogenesis models. The choice is a research-design decision only.
Both are copper tripeptide complexes; they differ by the first amino acid (glycine in GHK-Cu, alanine in AHK-Cu), and are studied in somewhat different research models.
No comparative potency or effect is claimed. They are structurally similar copper peptides studied as laboratory reference compounds.
No. Both are sold strictly for in-vitro laboratory research and are not for human or veterinary use.