Thymosin Alpha-1 — Vendor Comparison
An immune-modulating peptide derived from thymosin fraction 5. FDA-designated as an orphan drug and widely studied for immune support.
Rankings based on our Vendor Transparency Score — COA publishing, lab accreditation, batch traceability, and published policies.See our methodology →
We earn commissions from some vendors below. This doesn't affect our rankings — they're determined by Vendor Transparency Scores alone.Full disclosure →
How We Score Transparency
Public COA AccessCore evidenceCertificates of Analysis visible on site with batch-specific results
Batch TraceabilityCore evidenceCOA batch numbers match product labels and packaging
Named Testing LabCore evidenceTesting lab is named and independently verifiable
Policy PagesSupporting trustDedicated refund and/or shipping policy pages
Identifiable OwnershipSupporting trustNamed founders, registered business, or physical address
Methodology v2.0 · Last updated Mar 14, 2026Full methodology →
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13 vendors
| Vendor▼ | Rating▲ | COAs▼ | Est.▼ | Price▼ | Ships▼ | Stock▼ | Actions |
|---|---|---|---|---|---|---|---|
NP NuScience Peptides | 2003 | $59.99 $6.00/mg | 1-3 days CC₿ | In Stock | Visit | ||
IP Ion Peptides | 2025 | $65.00 $6.50/mg | 2-5 days CC | In Stock | Visit | ||
SP Skye Peptides | 2023 | $79.00 $7.90/mg | 3-7 days VISAMCAMEXDISCPay₿ | In Stock | Visit | ||
VP Verified Peptides | 2020 | $80.00 $8.00/mg | 1-3 days MESH | In Stock | Visit | ||
SP Simple Peptides | 2023 | $86.00 $8.60/mg | 1-3 days VISAMCAMEX | In Stock | Visit | ||
AOP Alpha Omega Peptides | 2024 | $86.00 $8.60/mg | 3-7 days VISAMCAMEXPayAPayVnmoZelle₿ | In Stock | Visit | ||
LB Limitless Biotech | 2015 | $131.99 $13.20/mg | 2-5 days VISAMC₿CashZelleACH | In Stock | Visit | ||
EB Evolve Biopep | 2025 | $35.00 $3.50/mg | 2-5 days CCAPayGPayKlrnaAfrm₿ | In Stock | Visit | ||
PP Planet Peptide | 2021 | $65.00 $6.50/mg | 2-5 days CC | In Stock | Visit | ||
PP Polaris Peptides | 2024 | $65.00 $6.50/mg | 2-5 days VISAMCAMEXDISCVnmoCashZelleACHWire₿ | In Stock | Visit | ||
AL Atomik Labz | 2024 | $65.00 $6.50/mg | 1-3 days VISAMC₿Vnmo | In Stock | Visit | ||
PP Penguin Peptides | 2025 | $97.00 $9.70/mg | 2-5 days CCAPayAfrm | In Stock | Visit | ||
P PureRawz | 2017 | $148.60 $14.86/mg | 2-5 days ₿LTCETHVnmoZellePayCC | In Stock | Visit |