Best sources ranked · 2026

Best AHK-Cu Sources

16 US vendors carry AHK-Cu. Ordered below by the lab-rule score of each vendor’s certificate for AHK-Cu, then by the vendor’s published score; prices are per milligram. Copper-binding tripeptide (alanyl-histidyl-lysine complexed with copper), related to GHK-Cu. Commonly sold as a topical-format research material.

Vendors
16

Vendors

With COAs
9

With COAs

Best $/mg
$0.04

Best $/mg

Looking for the top picks? Best AHK-Cu vendors, ranked by PSR score →

Every AHK-Cu source, by certificate

Ordered by the lab-rule score of each vendor's certificate for this product (out of 10), then by the vendor's published score, then alphabetically. How the lab rule scores a certificate. For the market-wide picture, see our 2026 study of peptide vendor testing.

Affiliate links: we may earn a commission if you buy. It never changes a score or rank.

9.5/103 base, +2 ILS Laboratories tier B+, +1.5 key, +1.5 key confirmed, +0.5 endotoxin, +0.5 sterility, +0.5 purity 99.78certificate

Vendor score 8.02/10Strong

Price per mg
$0.60
Best price
$59.99 / 100mg
9.5/103 base, +2 Freedom Diagnostics Testing tier A, +1.5 key, +1.5 key confirmed, +0.5 endotoxin, +0.5 sterility, +0.5 purity 99.87certificate

Vendor score 7.67/10Strong

Price per mg
$0.95
Best price
$95.00 / 100mg
8.0/103 base, +2 Janoshik Analytical tier B+, +1.5 key, +1.5 key confirmed, 0 purity 99.19certificate

Vendor score 7.80/10Strong

Price per mg
$0.05
Best price
$50.00 / 1000mg
Shop Ameano Peptides → (opens in new tab)
8.0/103 base, +2 Freedom Diagnostics Testing tier A, +1.5 key, +1.5 key confirmed, 0 purity 99.469certificate

Vendor score 7.75/10Strong

Price per mg
$0.04
Best price
$44.00 / 1000mg
8.0/103 base, +2 Freedom Diagnostics Testing tier A, +1.5 key, +1.5 key confirmed, 0 purity 99.55certificate

Vendor score 6.99/10Fair

Price per mg
$0.28
Best price
$27.99 / 100mg
8.0/103 base, +2 Freedom Diagnostics Testing tier A, +1.5 key, +1.5 key confirmed, 0 purity 99.37certificate

Vendor score 6.87/10Fair

Price per mg
$0.49
Best price
$48.99 / 100mg
8.0/103 base, +2 ILS Laboratories tier B+, +1.5 key, +1.5 key confirmed, 0 purity 99.47certificate

Vendor score 6.26/10Fair

Price per mg
$0.70
Best price
$69.99 / 100mg
8.0/103 base, +2 ILS Laboratories tier B+, +1.5 key, +1.5 key confirmed, 0 purity 99.47certificate

Vendor score 6.14/10Fair

Price per mg
$0.50
Best price
$49.99 / 100mg
5.5/103 base, +2 Freedom Diagnostics Testing tier A, +1.5 key, +1.5 key confirmed, +0.5 endotoxin, -3 purity 96.63certificate

Vendor score 7.37/10Strong

Price per mg
$0.57
Best price
$57.00 / 100mg
2.0/10SteriGenix Analytical tier D: independence not established = 2.0 flatcertificate

Vendor score 4.80/10Weak

Price per mg
$0.65
Best price
$65.00 / 100mg
Show 6 more carriers
0.0/10no certificatecertificate

Vendor score 5.79/10Fair

NoneNo third-party COA was publicly available at audit time
Price per mg
$0.96
Best price
$192.00 / 200mg
0.0/10no certificatecertificate

Vendor score 3.27/10Poor

NoneNo third-party COA was publicly available at audit time
Price per mg
$0.11
Best price
$215.00 / 2000mg
0.0/10no certificatecertificate

Vendor score 3.23/10Poor

NoneNo third-party COA was publicly available at audit time
Price per mg
$0.45
Best price
$45.00 / 100mg
0.0/10no certificatecertificate

Vendor score 2.38/10Poor

NoneNo third-party COA was publicly available at audit time
Price per mg
—
Best price
—
0.0/10no certificatecertificate

Vendor score 2.13/10Poor

NoneNo third-party COA was publicly available at audit time
Price per mg
$0.12
Best price
$62.00 / 10 x 50mg pack
0.0/10no certificatecertificate

Vendor score 1.63/10Poor

NoneNo third-party COA was publicly available at audit time
Price per mg
$0.63
Best price
$62.99 / 100mg

“Shop” links may be affiliate links (rel="sponsored"); we may earn a commission. Affiliate status never affects any rating, rank, or gate. Disclosure.

Affiliate partners carrying AHK-Cu

Affiliate links: we may earn a commission if you buy. It never changes a score or rank.

Highest-placed partner

Amino Club9.5/10 certificate

The highest-placed affiliate partner in the table above for AHK-Cu: certificate 9.5/10, vendor score 8.02/10.

Largest partner reader code

The largest reader discount among our affiliate partners carrying AHK-Cu: 10% off with code peptidesourcerehog.

Shop Ameano Peptides → (opens in new tab)
Ameano Peptides discount code →

AHK-Cu: Frequently Asked Questions

Who has the best AHK-Cu?

In our 2026 audit, Amino Club is listed first for AHK-Cu: its certificate for AHK-Cu scores 9.5/10 on our lab rule, and its published vendor score is 8.02/10. The full ordered table is on this page.

What is the cheapest AHK-Cu per mg?

The lowest recorded price per milligram for AHK-Cu in our audit is the "Best $/mg" figure at the top of this page, and every carrier's price per mg is in the table. Cheapest is not the same as best: the table is ordered by certificate and vendor score, not by price.

How do you rate AHK-Cu vendors?

Ordered by the lab-rule score of each vendor's certificate for this product (out of 10), then by the vendor's published score, then alphabetically. The certificate score is the same lab rule that builds each vendor's lab sub-score, applied to that vendor's certificate for AHK-Cu; the vendor score is the published overall score. Price per mg is shown but does not change the order. See our methodology for the lab rule.

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