A
83
Fresh · 5dMetals Pass
100.0%HPLC
115.7 / 100 mg (+15.7%)
$0.35/mg
-38% vs median
No Trustpilot rating
All compounds
Copper peptide
GHK-Cu
Copper-binding tripeptide studied in dermal and wound-healing research.
- Batches audited
- 7
- Median $/mg
- $0.55
- Lowest $/mg
- $0.35
Effective price per mg
Price ÷ lab-measured mg. Dashed line = median. Green figure = with the vendor's best coupon.
- Better Peptide$0.35
- My Pure Peptide$0.36
- NG Peptide$0.38
- Simple Peptide$0.55
- Northline Labs$0.92
- PeptidePro$1.28
- BioLongevity Labs$1.66
Audited GHK-Cu batches
| Vendor | Compound · Batch | Testing lab | Purity · Quantity | Metals | Price | Grade | |
|---|---|---|---|---|---|---|---|
| Better Peptide No Trustpilot rating | GHK-Cu 100mg GHK-0011 · Oct 20, 2026 Fresh · 5d | 100.0%HPLC 115.7 / 100 mg (+15.7%) | Pass | $0.35/mg -38% vs median | A83/100 | ||
| NG Peptide No Trustpilot rating | GHK-Cu 50mg GHKCU · Sep 18, 2026 Fresh · 37d | 99.9%HPLC 52.39 / 50 mg (+4.8%) | Pass | $0.38/mg -31% vs median | A-76/100 | ||
| My Pure Peptide 4.7Trustpilot | GHK-Cu 100mg 05012026G1 · May 13, 2026 Stale COA · 165d | 99.6%HPLC 96.89 / 100 mg (-3.1%) | Not screened | $0.36/mg -35% vs median | A-73/100 | ||
| Simple Peptide No Trustpilot rating | GHK-Cu 100mg GHKC12012025-J · Dec 4, 2025 Stale COA · 325d | 99.9%HPLC 99.2 / 100 mg (-0.8%) | Not screened | $0.55/mg 0% vs median | B60/100 | ||
| Northline Labs 4.2Trustpilot | GHK-Cu 100mg NLL-9372216 · May 12, 2026 Stale COA · 166d | 99.6%HPLC 97.5 / 100 mg (-2.5%) | Not screened | $0.92/mg +66% vs median | C54/100 | ||
| BioLongevity Labs No Trustpilot rating | GHK-Cu 50mg 11-3-46136 · May 1, 2026 Stale COA · 177d | 99.7%HPLC 51.23 / 50 mg (+2.5%) | Not screened | $1.66/mg +199% vs median | C54/100 | ||
| PeptidePro 4.7Trustpilot | GHK-Cu 50mg GHKV-050125 · Feb 28, 2026 Stale COA · 239d | 99.8%HPLC 49.85 / 50 mg (-0.3%) | Not screened | $1.28/mg +131% vs median | C50/100 |
A-
76
Fresh · 37dMetals Pass
99.9%HPLC
52.39 / 50 mg (+4.8%)
$0.38/mg
-31% vs median
No Trustpilot rating
A-
73
Stale COA · 165dMetals Not screened
99.6%HPLC
96.89 / 100 mg (-3.1%)
$0.36/mg
-35% vs median
4.7Trustpilot
B
60
Stale COA · 325dMetals Not screened
99.9%HPLC
99.2 / 100 mg (-0.8%)
$0.55/mg
0% vs median
No Trustpilot rating
C
54
Stale COA · 166dMetals Not screened
99.6%HPLC
97.5 / 100 mg (-2.5%)
$0.92/mg
+66% vs median
4.2Trustpilot
C
54
Stale COA · 177dMetals Not screened
99.7%HPLC
51.23 / 50 mg (+2.5%)
$1.66/mg
+199% vs median
No Trustpilot rating
C
50
Stale COA · 239dMetals Not screened
99.8%HPLC
49.85 / 50 mg (-0.3%)
$1.28/mg
+131% vs median
4.7Trustpilot
PeptideAudits · Protocols App
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