Disclosure: We earn a commission from vendors on this page. Rankings are based on objective criteria including price, COA availability, and reputation.
Best Selank Vendors of 2026
Ranked by Price, Purity, and Reputation
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Quick Comparison
1Ascension PeptidesCOA
10/1010mg$4.75/mg
2Ion PeptideCOA
9.8/10$3.46/mg
3EZ PeptidesCOA
9.7/1010mg$4.40/mg
4Glacier AminosCOA
9.5/10$4.10/mg
5Nura PeptidePREMIUMCOA
9.3/1010mg$4.50/mg
6Mile High CompoundsCOA
9.2/1010mg$4.00/mg
| Rank | Vendor | COA | Score | Doses |
|---|---|---|---|---|
| 1 | Ascension Peptides | Yes | 10/10 | |
| 2 | Ion Peptide | Yes | 9.8/10 | |
| 3 | EZ Peptides | Yes | 9.7/10 | |
| 4 | Glacier Aminos | Yes | 9.5/10 | |
| 5 | Nura PeptidePREMIUM | Yes | 9.3/10 | |
| 6 | Mile High Compounds | Yes | 9.2/10 |
Bulk Pricing
Per-vendor quantity breaks — pick a vial size to see the bulk price. Must purchase the full pack.
Ascension PeptidesCOA
as low as $2.14/mg$427.5010mg × 10$4.28/mg → $2.14/mg auto-applied
View at Ascension PeptidesIon PeptideCOA15% code thepeptidecatalog
as low as $2.21/mg$367.5010mg × 10$3.67/mg → $3.12/mg with code
View at Ion PeptideNura PeptideCOA25% code thepeptidecatalog
as low as $3.04/mg$405.0010mg × 10$4.05/mg → $3.04/mg with code
View at Nura PeptideEZ PeptidesCOA10% code thepeptidecatalog
as low as $3.56/mg$396.0010mg × 10$3.96/mg → $3.56/mg with code
View at EZ PeptidesSelank Stacks & Blends
Pre-mixed combinations containing Selank — one vial, multiple peptides.
Semax + Selank
Also contains: Semax
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.