GHK-Cu: where to get lab-tested lots
Last updated Oct 8, 2026 · Paramount Peptides prices checked Oct 7, 2026 · 23 tested lots on file
Affiliate disclosure: the shop buttons are affiliate links and SKYLER is Skyler Humphrey's affiliate code. We earn a commission at no extra cost to you. Full disclosure
GHK-Cu is available from both of our tested suppliers. Each section lists that supplier's products with the latest certificate for each; every lot links to its own page with the full results and the lab's verification link.
GHK-Cu from Paramount Peptides
9 tested lots on file · labs on these certificates: Accumark Labs, Janoshik
| Product | Vial | Price | Latest lot | Tested lots | |
|---|---|---|---|---|---|
| GHK-Cu (50mg) | 50 mg | $55.25 listed price, checked Oct 7, 2026 | GHK50N061326 99.74% · Jun 26, 2026 · Accumark Labs | 6 | Shop ↗ |
| GHK-Cu (100mg) | 100 mg | $75.00 listed price, checked Oct 7, 2026 | GHK100N061526 99.98% · Jul 6, 2026 · Accumark Labs | 3 | Shop ↗ |
Visit Paramount Peptides ↗ Paid link · code SKYLER = 10% off (offer as of Oct 7, 2026)
GHK-Cu from Peptira
14 tested lots on file · labs on these certificates: Freedom Diagnostics, Janoshik
| Product | Vial | Price | Latest lot | Tested lots | |
|---|---|---|---|---|---|
| GHK-Cu Vial 50 mg | 50 mg | See site prices are shown after research-account sign-in | GHK50-008 99.26% · Mar 5, 2026 · Freedom Diagnostics | 8 | Shop ↗ |
| GHK-Cu Vial 100 mg | 100 mg | See site prices are shown after research-account sign-in | GHK100-006 99.93% · Mar 5, 2026 · Freedom Diagnostics | 6 | Shop ↗ |
Visit Peptira ↗ Paid link · code SKYLER = 10% off (offer as of Oct 7, 2026)
Prices are the listed price on the supplier's public product page on Oct 7, 2026, before any code or shipping, and they change often. "See site" means the price isn't public or we couldn't confirm it.
Offer as of Oct 7, 2026. SKYLER is Skyler Humphrey's affiliate code: we earn a commission on orders that use it, at no extra cost to you. Code details
Doses reported in published studies: GHK-Cu: doses reported in published research (literature summary, not advice).
Organ systems in published research: Brain & nervous system, Skin, Muscle & tendon, Lungs & airways.
More on the compound itself: GHK-Cu research profile (identity, research record and regulatory status). Every lot is listed in the COA lookup.