Disclosure: We earn a commission from vendors on this page. Rankings are based on objective criteria including price, COA availability, and reputation.
Best Melanotan I Vendors of 2026
Ranked by Price, Purity, and Reputation
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Quick Comparison
1Ascension PeptidesCOA
10/1010mg$5.00/mg
2Ion PeptideCOA
9.7/1010mg$3.50/mg
3EZ PeptidesCOA
9.3/1010mg$4.40/mg
4Glacier AminosCOA
9/1010mg$3.40/mg
| Rank | Vendor | COA | Score | Doses |
|---|---|---|---|---|
| 1 | Ascension Peptides | Yes | 10/10 | |
| 2 | Ion Peptide | Yes | 9.7/10 | |
| 3 | EZ Peptides | Yes | 9.3/10 | |
| 4 | Glacier Aminos | Yes | 9/10 |
Bulk Pricing
Per-vendor quantity breaks — pick a vial size to see the bulk price. Must purchase the full pack.
Glacier AminosCOA10% code thepeptidecatalog
as low as $2.14/mg$305.9010mg × 10$3.06/mg → $2.75/mg with code
View at Glacier AminosIon PeptideCOA15% code thepeptidecatalog
as low as $2.23/mg$262.5010mg × 10$2.63/mg → $2.23/mg with code
View at Ion PeptideAscension PeptidesCOA
as low as $2.25/mg$450.0010mg × 10$4.50/mg → $2.25/mg auto-applied
View at Ascension PeptidesEZ PeptidesCOA10% code thepeptidecatalog
as low as $3.56/mg$396.0010mg × 10$3.96/mg → $3.56/mg with code
View at EZ PeptidesCompare 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.