Disclosure: We earn a commission from vendors on this page. Rankings are based on objective criteria including price, COA availability, and reputation.

GHK-Cu research vial
GHK-Cu

Best GHK-Cu Vendors of 2026

Ranked by Price, Purity, and Reputation

6 vendors comparedfrom $0.34/mgCOA-verified sources only

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Quick Comparison

1Nura PeptideCOA
10/10
100mg$0.55/mg
2Ascension PeptidesCOA
9.8/10
$0.59/mg
3Ion PeptideCOA
9.6/10
50mg$0.50/mg
4Glacier AminosCOA
9.4/10
$0.46/mg
5EZ PeptidesCOA
9.2/10
$0.70/mg
6Swiss ChemsShips WorldwideCOA
9/10
$1.38/mg
GHK-Cu research kit

Bulk Pricing

Per-vendor quantity breaks — pick a vial size to see the bulk price. Must purchase the full pack.

Nura PeptideCOA30% code thepeptidecatalog
as low as $0.31/mg
$550.00$308.00Save 44%100mg × 10

$0.55/mg $0.31/mg · 20% pack discount + 30% with code

View at Nura Peptide
Ascension PeptidesCOA
as low as $0.27/mg
$690.00$310.50Save 55%100mg × 10

$0.69/mg $0.31/mg · 10% pack discount + 50% auto-applied

View at Ascension Peptides
Ion PeptideCOA15% code thepeptidecatalog
as low as $0.32/mg
$399.50$190.91Save 52%1mg × 10

$39.95/mg $19.09/mg · 44% pack discount + 15% with code

View at Ion Peptide
Glacier AminosCOA10% code thepeptidecatalog
as low as $0.23/mg
$524.90$354.33Save 32%2mg × 10

$26.25/mg $17.72/mg · 25% pack discount + 10% with code

View at Glacier Aminos
EZ PeptidesCOA10% code thepeptidecatalog
as low as $0.43/mg
$350.00$283.50Save 19%50mg × 10

$0.70/mg $0.57/mg · 10% pack discount + 10% with code

View at EZ Peptides

GHK-Cu Stacks & Blends

Pre-mixed combinations containing GHK-Cu — one vial, multiple peptides.

Compare More Peptide Vendors

How We Score Vendors

Our scoring is based on three weighted factors:

Price Competitiveness (40%)

Normalized to cost per milligram for fair comparisons across vial sizes.

COA Availability (30%)

Third-party lab testing confirming purity, identity, and absence of contaminants.

Vendor Reputation (30%)

Community feedback, shipping reliability, customer service, and business track record.