Skin and longevity
GHK-Cu
Also sold as Copper peptide
Copper tripeptide sold in 50 mg and 100 mg vials. Inexpensive per milligram, so it is a common entry point. Colour and solubility are the first clues when a batch is off.
- Vendors tested
- 15
- of 19 listed
- Samples passed
- 94%
- of 17 results
- Median price
- $0.60/mg
- 50 mg vials typical
Who leads GHK-Cu
Ranked by pass score: the recency weighted share of each vendor’s GHK-Cu samples that met 99.5% purity, confirmed identity, and fill within 25% of the label.
- 1 Atomik Labz 2 of 2 passed, latest Oct 7, 2026 Buy GHK-Cu at atomiklabz.com 98.5
- 2 Solution Peptides 2 of 2 passed, latest Aug 18, 2026 Buy GHK-Cu at solutionpeptides.net 98.4
- 3 Simple Peptide 1 of 1 passed, latest Oct 17, 2026 98.1
- 4 Peptide Partners 1 of 1 passed, latest Jun 11, 2026 97.7
- 5 Ion Peptides 1 of 1 passed, latest Apr 6, 2026 97.6
- 6 Crush Research 1 of 1 passed, latest Apr 20, 2026 97.6
- 7 Polaris Peptides 1 of 1 passed, latest May 7, 2026 97.6
- 8 Penguin Peptides 1 of 1 passed, latest May 1, 2026 97.6
- 9 ezPeps 1 of 1 passed, latest Mar 24, 2026 97.5
- 10 Particle Peptides 1 of 1 passed, latest Mar 26, 2026 97.5
- 11 Skye Peptides 1 of 1 passed, latest Jan 13, 2026 97.4
- 12 Southern Aminos 1 of 1 passed, latest Feb 23, 2026 97.4
- 13 Limitless Biotech 1 of 1 passed, latest Feb 2, 2026 97.4
- 14 Core Peptides 1 of 1 passed, latest Dec 4, 2025 97.3
- 15 Swiss Chems 0 of 1 passed, latest Dec 1, 2025 69.4