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

Best AHK-Cu Vendors of 2026

Ranked by Price, Purity, and Reputation

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Quick Comparison

1Ion PeptideCOA
10/10
$0.58/mg
2Glacier AminosCOA
9/10
50mg$1.30/mg

Bulk Pricing

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

Ion PeptideCOA15% code thepeptidecatalog
as low as $0.041/mg
$487.501000mg × 10$0.049/mg → $0.041/mg with code
View at Ion Peptide
Glacier AminosCOA10% code thepeptidecatalog
as low as $0.82/mg
$584.9050mg × 10$1.17/mg → $1.05/mg with code
View at Glacier Aminos

Compare More Peptide Vendors

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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.

Best BPC-157 Vendors of 2026 →

Ranked by price, purity testing, and buyer trust

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