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
- $0.68/mg
- 50 mg vials typical
Who leads GHK-Cu
Vendors with independent results for GHK-Cu, ordered by overall score. The pass counts and average purity shown are for this compound only, judged against 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 94.9 Overall
- 2 Solution Peptides 2 of 2 passed, latest Aug 18, 2026 Buy GHK-Cu at solutionpeptides.net 92.4 Overall
- 3 Crush Research 1 of 1 passed, latest Apr 20, 2026 Buy GHK-Cu at crushresearch.com 90.4 Overall
- 4 Ion Peptides 1 of 1 passed, latest Apr 6, 2026 89.9 Overall
- 5 ezPeps 1 of 1 passed, latest Mar 24, 2026 Buy GHK-Cu at ezpeps.com 89.4 Overall
- 6 Peptide Partners 1 of 1 passed, latest Jun 11, 2026 Buy GHK-Cu at peptide.partners 87.9 Overall
- 7 Simple Peptide 1 of 1 passed, latest Oct 17, 2026 84.8 Overall
- 8 Skye Peptides 1 of 1 passed, latest Jan 13, 2026 Buy GHK-Cu at skyepeptides.com 81.7 Overall
- 9 Southern Aminos 1 of 1 passed, latest Feb 23, 2026 Buy GHK-Cu at southernaminos.com 79.5 Overall
- 10 Particle Peptides 1 of 1 passed, latest Mar 26, 2026 76.4 Overall
- 11 Polaris Peptides 1 of 1 passed, latest May 7, 2026 Buy GHK-Cu at polarispeptides.com 73.3 Overall
- 12 Core Peptides 1 of 1 passed, latest Dec 4, 2025 Buy GHK-Cu at corepeptides.com 61.7 Overall
- 13 Limitless Biotech 1 of 1 passed, latest Feb 2, 2026 58.7 Overall
- 14 Swiss Chems 0 of 1 passed, latest Dec 1, 2025 Buy GHK-Cu at swisschems.is 50.9 Overall
- 15 Penguin Peptides 1 of 1 passed, latest May 1, 2026 Buy GHK-Cu at penguinpeptides.com 50.3 Overall