GHK-Cu vs Klow Quad Stack.
Side-by-side comparison for Canadian research labs.
| Property | GHK-Cu | Klow Quad Stack |
|---|---|---|
| Category | Cosmetic | Cosmetic |
| Class | Copper peptide | Stack |
| Standard size | 50 mg | 1 mg |
| Lot purity (HPLC) | ≥ 99.42% | ≥ 99.1% |
| Price (CAD) | $38 | $140 |
| Brief | Copper-binding tripeptide for cosmetic and connective-tissue research. | Four-peptide cosmetic research stack: GHK-Cu, BPC-157, TB-500, and KPV. |
