Preview data. Scores are placeholder values until our first round of testing is complete. Read more

Recovery

TB-500

Also sold as Thymosin Beta-4 fragment

Synthetic fragment of thymosin beta-4. Often sold blended with BPC-157. Blends are tested and scored separately from single compound vials.

Vendors tested
13
of 18 listed
Samples passed
67%
of 15 results
Median price
$6.50/mg
5 mg vials typical

Who leads TB-500

Vendors with independent results for TB-500, ordered by overall score. The pass counts and average purity shown are for this compound only, judged against 99.5% purity, confirmed identity, and fill within 25% of the label.

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  1. 1 Atomik Labz 2 of 2 passed, latest Oct 10, 2026 Buy TB-500 at atomiklabz.com 94.9 Overall
  2. 2 Solution Peptides 2 of 2 passed, latest Aug 21, 2026 Buy TB-500 at solutionpeptides.net 92.4 Overall
  3. 3 Crush Research 1 of 1 passed, latest May 30, 2026 Buy TB-500 at crushresearch.com 90.4 Overall
  4. 4 Ion Peptides 1 of 1 passed, latest May 22, 2026 89.9 Overall
  5. 5 Peptide Partners 1 of 1 passed, latest Feb 9, 2026 Buy TB-500 at peptide.partners 87.9 Overall
  6. 6 Southern Aminos 0 of 1 passed, latest Apr 1, 2026 Buy TB-500 at southernaminos.com 79.5 Overall
  7. 7 Ascension Peptides 1 of 1 passed, latest Feb 20, 2026 Buy TB-500 at ascensionpeptides.com 77.7 Overall
  8. 8 Particle Peptides 0 of 1 passed, latest May 9, 2026 76.4 Overall
  9. 9 Biotech Peptides 0 of 1 passed, latest Dec 10, 2025 Buy TB-500 at biotechpeptides.com 66.0 Overall
  10. 10 Core Peptides 0 of 1 passed, latest Jul 22, 2026 Buy TB-500 at corepeptides.com 61.7 Overall
  11. 11 Limitless Biotech 1 of 1 passed, latest Jul 15, 2026 58.7 Overall
  12. 12 Swiss Chems 0 of 1 passed, latest Apr 24, 2026 Buy TB-500 at swisschems.is 50.9 Overall
  13. 13 Penguin Peptides 1 of 1 passed, latest Aug 6, 2026 Buy TB-500 at penguinpeptides.com 50.3 Overall