MATCH SIZE AND QUANTITY
Build your comparison.
Choose a labeled amount and selection to load matching prices.
Vial comparison
Review prices for research vials labeled TB-500, including listings written as TB500 or TB 500. Matching the supplier's product identity is as important as matching the vial size.
MATCH SIZE AND QUANTITY
Choose a labeled amount and selection to load matching prices.
GO BEYOND THE PRICE
Select a strength and selection above to view price history, save a price watch or add it to your basket.
DOCUMENTATION PASSPORTS
Inspect the source report, recorded lot and document access. A report link does not confirm the batch currently shipping.
Loading documentation records…
Reported quantities in this family: 1, 2, 3, 5, 6, 10. Counts and units must be matched to the exact listing.
The catalog includes 5 mg and 10 mg TB-500 vials, among other labeled amounts, plus selections containing multiple vials. Compare equal sizes and counts first. Use the total labeled milligrams in the selection for a unit-price calculation, while keeping the full purchase cost visible.
This page groups supplier labels; it does not independently establish that similarly named materials are identical. Do not automatically substitute a product labeled thymosin beta-4, a fragment, or a BPC-157/TB-500 blend. Check the original product description and identity documentation before treating two listings as a match.
Compare within each strength. Every row covers one vial and includes only listings marked in stock with known quantities.
| Strength | Selection | Lowest listed total price | Price per mg | Supplier count | Compare |
|---|---|---|---|---|---|
| 2 mg | 1 vial | $17.04 | $8.52 | 2 | Compare |
| 5 mg | 1 vial | $26.10 | $5.22 | 9 | Compare |
| 10 mg | 1 vial | $34.99 | $3.50 | 34 | Compare |
| 11 mg | 1 vial | $35.74 | $3.25 | 1 | Compare |
| 20 mg | 1 vial | $64.00 | $3.20 | 4 | Compare |

122 products · 249 listings

153 products · 275 listings

20 products · 27 listings

44 products · 56 listings

23 products · 62 listings
26 products · 27 listings

15 products · 20 listings

35 products · 36 listings

25 products · 25 listings

32 products · 41 listings
18 products · 22 listings

20 products · 34 listings

29 products · 143 listings

36 products · 58 listings

34 products · 51 listings

44 products · 62 listings

42 products · 96 listings

5 products · 12 listings

24 products · 29 listings

43 products · 57 listings

20 products · 30 listings

27 products · 105 listings

40 products · 50 listings

26 products · 42 listings

33 products · 135 listings
28 products · 30 listings

19 products · 24 listings

26 products · 58 listings
18 products · 20 listings

19 products · 25 listings

35 products · 40 listings
34 products · 47 listings

41 products · 52 listings

32 products · 43 listings

37 products · 56 listings
22 products · 29 listings

35 products · 45 listings

38 products · 47 listings

50 products · 65 listings

39 products · 51 listings

29 products · 46 listings

18 products · 66 listings

37 products · 58 listings

38 products · 72 listings

30 products · 49 listings
10 listings from direct supplier captures and 65 listings from aggregator reports. Capture and import dates record when data was obtained; they do not guarantee the supplier’s current price or stock.
Listings include out-of-stock and unconfirmed-stock records. Inclusion does not certify a supplier, a batch or a product. Read how matching and source dates work.
Yes. TB500 and TB 500 are spelling variants recognized by this index. That label matching is not an independent check of the material's identity or the contents of a supplied vial.
No. The index does not automatically merge full-length material or fragments with TB-500 based on a related name. The supplier's product identity evidence must support a match.
FROM PEPTIDES CALCULATOR
Source profile reviewed 2026-10-01 · Imported 2026-10-22. Read the full compound profile
TB-500 is the trade name under which a synthetic seven-residue fragment of thymosin beta-4, Ac-LKKTETQ (residues 17-23, the actin-binding motif), was identified in a veterinary product aimed at racehorses and greyhounds around 2011. Thymosin beta-4 itself is a 43-amino-acid protein found in nearly every cell, which RegeneRx has tested in people as an intravenous solution, a wound gel (RGN-137) and eye drops (RGN-259), while the fragment has never been given to humans in any published study according to the FDA's 2026 literature search. Research-chemical vendors sell both the fragment and the full protein as TB-500, so a vial's contents cannot be assumed from its label. Thymosin beta-4 and its derivatives including TB-500 are prohibited at all times under section S2.3 of the WADA list, and in July 2026 the FDA's Pharmacy Compounding Advisory Committee voted 8 to 6 to recommend adding TB-500 to the 503A bulks list against the agency reviewers' advice, a recommendation that has no legal effect until FDA completes rulemaking.
A 2024 study compared TB-500 and metabolites in fibroblast wound-healing assays.
The same study characterized metabolites after administration in rats.
Findings for 43-amino-acid thymosin beta-4 cannot be assigned automatically to the seven-residue TB-500 fragment.
Background is reproduced from Peptides Calculator with attribution. The source describes compound-level research. It does not evaluate the identity, quality or suitability of a listed supplier’s product or batch.