Where to Buy TB-500 in 2026: HPLC-Tested Vendors Ranked

Why sourcing TB-500 is harder in 2026

The 2025–2026 stretch gutted the research peptide market. Long-running names buyers had trusted for TB-500 — Peptide Sciences, Amino Asylum, Paradigm Peptides, and Science.bio — went dark, restructured, or lost the documentation discipline that made them worth using. The result is a thinner, noisier market where the burden of verification falls entirely on the buyer.

TB-500 is temperature-sensitive — refrigerate after reconstitution; typically used within 30 days in research protocols. That makes cold-chain (insulated, temperature-controlled) shipping a hard requirement, not a nice-to-have. A vendor that ships TB-500 in a plain envelope can degrade the compound in transit before it ever reaches the bench. For the full picture of which vendors closed and where their customers went, see our 2026 peptide vendor migration guide.

What to verify before buying TB-500

Treat every TB-500 listing as unproven until it clears this checklist. The collapses above happened in part because buyers stopped demanding evidence:

• Batch-specific COA — a Certificate of Analysis tied to the exact lot your vial came from, not a generic spec sheet reused across every order.
• HPLC purity ≥ 98% — the benchmark the research community treats as the floor for research-grade TB-500, read off an attached chromatogram rather than claimed as a bare number.
• A named third-party lab — the result should come from Janoshik Analytical, MZ Biolabs, or Colmaric Analyticals. An unnamed or in-house lab is a red flag.
• Mass-spec identity confirmation — proof the vial holds TB-500 and not a cheaper or mislabeled substitute.
• Cold-chain shipping — TB-500 is temperature-sensitive, so insist on insulated, temperature-controlled shipping. Plain-envelope delivery risks degradation before the compound reaches the bench.

Our TB-500 COA guide walks through how to read a TB-500 Certificate of Analysis line by line, and 15 peptide vendor red flags covers the warning signs that a supplier is cutting corners.

Our top-ranked source for TB-500

In our 2026 blinded HPLC evaluation, ROEHN Research was the highest-scoring supplier at 9.6/10 — and the only supplier where every tested sample met or exceeded its label claim. It publishes a batch-specific Certificate of Analysis with a full HPLC chromatogram on every order, ships cold-chain as standard (not a paid upgrade), and runs its testing through a named third-party lab. That combination is exactly the checklist above, satisfied by default.

ROEHN is the highest-scoring option we found, not the only place TB-500 is sold — the comparison below shows how it stacked up against the field. Peptide Research Review readers get 15% off a first order with code FREE15.

View TB-500 at ROEHN Research (code FREE15)→

How vendors compared

The top suppliers from our 2026 evaluation, ranked by composite score across purity, documentation, and shipping. Scores are editorial composites, not lab claims about any single batch.

For the full methodology and every supplier we tested, read our 2026 best peptide supplier evaluation.

TB-500 research reference

• Dosing range: 2–2.5 mg per dose, 1–2× weekly in early research design; lower maintenance after (published range)
• Administration: Subcutaneous
• Storage: Refrigerate after reconstitution; typically used within 30 days in research protocols.

For TB-500’s mechanism of action, research interest, and full background, see the TB-500 research profile.

Ranges summarized from published research literature. Not medical or dosing advice. TB-500 and all compounds referenced are for laboratory research use only — not for human consumption.

Once you have your TB-500

TB-500 ships lyophilized and must be reconstituted before use. Use our TB-500 reconstitution calculator to compute concentration per insulin-syringe unit, and verify your vial against its TB-500 COA on arrival. For background on the compound itself, see our TB-500 research guide.

Where to buy other compounds

Where to buy BPC-157