Disclosure: We earn a commission from vendors on this page. Rankings are based on objective criteria including price, COA availability, and reputation.
Thymalin
Best Thymalin Vendors of 2026
Ranked by Price, Purity, and Reputation
1 vendor comparedfrom $5.90/mgCOA-verified sources only
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Quick Comparison
1Ion PeptideCOA
10/1010mg$5.90/mg
| Rank | Vendor | COA | Score | Doses |
|---|---|---|---|---|
| 1 | Ion Peptide | Yes | 10/10 |
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 $3.76/mg$590.00$376.13Save 36%10mg × 10
$5.90/mg $3.76/mg · 25% pack discount + 15% with code
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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.