ECM research
Short answer
Copper tripeptides such as GHK-Cu and AHK-Cu are studied in fibroblast, keratinocyte, and dermal research models for effects on collagen, elastin, MMP/TIMP balance, and copper-dependent enzyme activity — strictly as laboratory tool compounds, not cosmetic treatment claims.
GHK-Cu in research models
Gly-His-Lys copper complex modulates ECM gene expression in fibroblast cultures. Literature examines lysyl oxidase, collagen synthesis markers, and wound-healing model systems.
AHK-Cu in research models
Ala-His-Lys copper complex is studied in hair follicle and dermal papilla cell systems with overlapping but distinct transcriptional profiles from GHK-Cu.
Documentation
HALO copper peptides ship lyophilized with ≥98% HPLC purity and independent COA per batch.
Direct answers
How do GHK-Cu and AHK-Cu differ?
See /compare/ghk-cu-vs-ahk-cu/ for a side-by-side research comparison.
Are copper peptides sold for human cosmetic use?
No. HALO listings are research-use-only for qualified laboratory research.
Research use only. HALO materials and educational content are for qualified laboratory research only. Not for human or veterinary use.
