Vendor and compound
GHK-Cu from PeptidePlugs
PeptidePlugs lists GHK-Cu at $0.400 per mg, 33% under the $0.595 peer median. 7 third-party certificates for this compound from this vendor are on file, assayed by Freedom Diagnostics Testing, averaging 99.77% purity. The cheapest listed price for GHK-Cu anywhere in the index is $0.140 per mg at ZC Labs.
All GHK-Cu vendors · PeptidePlugs profile · scores 86.3 of 100, rank 9 · 7 certificates for this compound · verified 29 Aug 2026
What it costs
| Vial | Listed price | Per mg | vs peer median | Listing |
|---|---|---|---|---|
| 100 mg | $40 | $0.400 | -33% | GHK-Cu 100mg |
Read from the vendor’s own store and normalised per milligram, because a smaller vial at a lower sticker price is usually the dearer peptide.
What the laboratory found
| Lot | Assayed | Purity | Label → assayed | Laboratory | Record |
|---|---|---|---|---|---|
| 208100C-DK | 22 Aug 2026 | 99.83% | 100 mg → 116.79 mg | Freedom Diagnostics Testing | Open |
| 103-02-RB | 21 Jul 2026 | 99.41% | 100 mg → 105.87 mg | Freedom Diagnostics Testing | Open |
| 160-670X-DL | 16 Jul 2026 | 99.84% | 100 mg → 97.18 mg | Freedom Diagnostics Testing | Open |
| 152-PRP-SM | 24 Jun 2026 | 99.7% | 100 mg → 92.55 mg | Freedom Diagnostics Testing | Open |
| 151-BLU-DK | 24 Jun 2026 | 99.92% | 100 mg → 96.98 mg | Freedom Diagnostics Testing | Open |
| 121-A-D | 22 Apr 2026 | 99.87% | 100 mg → 109.81 mg | Freedom Diagnostics Testing | Open |
| 005-B | 28 Feb 2026 | 99.795% | 100 mg → 92.24 mg | Freedom Diagnostics Testing | Open |
Freedom Diagnostics Testing publishes a lookup, so these reports can be confirmed at the laboratory rather than taken from the vendor. How to check one.
Other vendors selling GHK-Cu
| Vendor | Score | Per mg | Certificates for this compound |
|---|---|---|---|
| Next Gen Peptides | 93.8 | $0.400 | 3 |
| Ascend Science | 90.1 | $0.450 | 2 |
| Amino Club | 88.3 | $0.580 | 2 |
| Modern Aminos | 88.1 | $0.640 | 1 |
| Origin Labs | 87.7 | — | 2 |
| Bench Grade Peptides | 86.8 | $0.380 | 4 |
| Polaris Peptides | 86.6 | $0.700 | 0 |
| Simple Peptide | 84.9 | $0.550 | 2 |
Ordered by overall evidence score. See every vendor listing GHK-Cu.
Questions
Is GHK-Cu from PeptidePlugs third-party tested?
Yes. 7 certificates for GHK-Cu from PeptidePlugs are on file, signed by Freedom Diagnostics Testing. Each names a lot, prints the assayed mass against the labelled mass, and links to the document it was read from. Freedom Diagnostics Testing also publishes a lookup, so the report can be confirmed at the laboratory rather than taken from the vendor.
How much does GHK-Cu cost at PeptidePlugs?
$0.400 per milligram, from 100 mg at $40. The peer median across every vendor we price for GHK-Cu is $0.595 per mg, so this is -33% against the market. Prices are normalised per milligram so vials of different sizes compare fairly.
Is PeptidePlugs a good place to buy GHK-Cu?
PeptidePlugs scores 86.3 of 100 on the published rubric and ranks 9 overall, computed from its documentation rather than from opinion. For GHK-Cu specifically it has 7 certificates on file. ZC Labs lists it cheaper at $0.140 per mg.