Comparison
AHK-Cu vs GHK-Cu
Side-by-side attributes from our library comparison data. Read each peptide leaf for dosing math, regulatory status, and citations.
AHK-Cu vs. GHK-Cu
| Attribute | AHK-Cu | GHK-Cu |
|---|---|---|
| Sequence | Ala-His-Lys-Cu (copper tripeptide-3) | Gly-His-Lys-Cu (copper tripeptide-1) |
| Typical SKU | Hair / cosmetic | Skin / wound / GLOW component |
| Literature | Thinner than GHK-Cu | More published dermal copper-peptide work |
| Recon | Same copper-peptide sting risk | Known PIP; often extra water |
Verdict: Siblings, not substitutes. GHK-Cu has the deeper paper trail. AHK-Cu is the hair-catalog cousin.