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Longevity & Skin
Every published certificate of analysis for the GHK-Cu products we link to, copied lot by lot as of Nov 1, 2026. How to read a COA.
Average purity
99.70%
The large dot is the most recently tested lot. Labs: ILS Labs, Ethos Analytical.
6 lots · average 99.68% · lowest 99.14%
| Lot | Tested | Size | Purity | Measured | Endotoxin | Sterility | Lab | |
|---|---|---|---|---|---|---|---|---|
| GHK0003 | Sep 14, 2026 | 50 mg | 99.94% | 52.69mg | < 0.05 EU/mL | No Growth | ILS Labs (ISO 17025) | |
| GHK0003 | Jul 30, 2026 | 50 mg | 99.81% | 53.63mg | < 0.05 EU/mL | No Growth | ILS Labs (ISO 17025) | |
| GHK0004 | Jul 30, 2026 | 100 mg | 99.14% | 105.43mg | < 0.05 EU/mL | No Growth | ILS Labs (ISO 17025) | |
| GHK0001 | Jun 8, 2026 | 50 mg | 99.95% | 53.13mg | < 0.05 EU/mL | No Growth | ILS Labs (ISO 17025) | |
| GHK0002 | May 29, 2026 | 100 mg | 99.62% | 104.72mg | < 0.05 EU/mL | No Growth | ILS Labs (ISO 17025) | |
| B1111 | Feb 4, 2026 | 50 mg | 99.76% | 59.26mg | – | – | Lab not stated | |
| B0111 | Feb 4, 2026 | 100 mg | 99.54% | 107.58mg | – | – | Lab not stated |
GHK-Cu on Amino Club ↗ Research-use-only listing — not for human use.
1 lot · average 99.85% · lowest 99.85%
| Lot | Tested | Size | Purity | Measured | Endotoxin | Sterility | Lab | |
|---|---|---|---|---|---|---|---|---|
| SGHK0001 | Aug 20, 2026 | 25 mg | – | 25.98mg / 25.83mg | < 1.25 EU/mL | – | Ethos Analytical (ISO 17025) | |
| SGHK0001 | Aug 11, 2026 | 25 mg | 99.85% | 25.92mg | 0.214 EU/mL | No Growth | ILS Labs (ISO 17025) |
GHK-Cu Research Mist on Amino Club ↗ Research-use-only listing — not for human use.
Purity is HPLC area percent as reported by the lab; some reports confirm content and identity without a purity figure. Reports are the supplier’s published PDFs; we don’t test vials ourselves. See our methodology and affiliate disclosure.
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