Repair & recovery
TB-500 price comparison
Synthetic fragment related to thymosin beta-4. Prices from 49 vendors, all normalized to price per mg so a 5 mg and a 20 mg vial can be compared fairly.
What the research says about TB-500
Evidence map →Evidence base
StrongMultiple human RCTs
Several randomized controlled trials in humans, often summarized by meta-analyses.
- 630
- Papers
- 3
- RCTs
- 18
- Reg. trials
Most research concerns thymosin beta-4, the full protein. TB-500 is a synthetic fragment, and findings may not carry over.
Where the research comes from
- Human clinical studies: 9
- Animal / lab only: 216
- Other (reviews, untagged): 405
Key studies
- Randomized trialA randomized, placebo-controlled, single and multiple dose study of intravenous thymosin beta4 in healthy volunteers — Annals of the New York Academy of Sciences, 2010
- Randomized trialThe effect of thymosin treatment of venous ulcers — Annals of the New York Academy of Sciences, 2010
- Randomized trialThymosin beta-4 and venous ulcers: clinical remarks on a European prospective, randomized study on safety, tolerability, and enhancement on healing — Annals of the New York Academy of Sciences, 2007
- Clinical trialLogistic regression analysis of environmental and other variables and incidences of tuberculosis in respiratory patients — Scientific reports, 2020
- Human studyAssociation between Thymosin beta-4, acute kidney injury, and mortality in patients with sepsis: An observational cohort study — International immunopharmacology, 2021
- Human studyMalignant thymoma associated with T-cell lymphocytosis. A case report with immunophenotypic and gene rearrangement analysis — Archives of pathology & laboratory medicine, 1993
Registered clinical trials (18)
- Assessment of the Safety and Efficacy of RGN-259 Ophthalmic Solutions for Dry Eye Syndrome: ARISE-1 — completed · phase2, phase3
- Study of Thymosin Beta 4 in Patients With Venous Stasis Ulcers — completed · phase2
- A Study of the Safety and Efficacy of Injectable Thymosin Beta 4 for Treating Acute Myocardial Infarction — withdrawn · phase2
- A Phase 2 Study on Effect of Thymosin Beta 4 on Wound Healing in Patients With Epidermolysis Bullosa — terminated · phase2
- Assessment of the Safety and Efficacy of RGN-259 Ophthalmic Solutions for Dry Eye Syndrome: ARISE-3 — completed · phase3
The grade reflects how much and what kind of research exists — not whether TB-500 works or is safe. It is computed from PubMed study-type tags and ClinicalTrials.gov registrations as of Oct 22, 2026. Research use only; not medical advice.
Compound Knowledge Base
Research & Pharmacokinetic Specs
Mechanism of Action
Synthetic fragment of thymosin beta-4 (LKKTETQ sequence); sequesters G-actin, prevents actin polymerization, and stimulates cell migration to injured tissue.
Target Receptors & Pathways
Actin-binding motif (actin sequestration / lamellipodia formation)
Half-Life
~24–36 hours
Storage & Handling
Store dry powder at -20°C for long-term stability. Once reconstituted in bacteriostatic water, refrigerate at 2–8°C; use within 21–28 days.
Scientific & Risk Flags
- •Virtually all published tendon/muscle literature is rodent or equine
- •Actin sequestering role warrants caution in proliferative tissue conditions
- •Prohibited under WADA S2 peptide hormones
Cheapest TB-500 by vial size
The lowest price at each size, across all vendors. Tap a size for the full ranking.
Where every vendor sits
Each dot is a vendor’s cheapest in-stock TB-500 vial, in $ per mg. The spread between the leftmost dot and the median is what shopping around is worth.
Compare every TB-500 offer
Form
Size
Best $/mg
$2.82
Bio Pepz
Lowest price
$18.40
Tide Labs · 2 mg vial
Median $/mg
$8.00
75 offers match
| Product | Size | Link to vendor | |||
|---|---|---|---|---|---|
| Modern Research Peptides United States TB-500 10mg (11.58 mg) COA CLAIMED | TB-500 10mg (11.58 mg) | 10 mg vial | $46.99 | $4.70 | View ↗ |
| Modern Research Peptides United States TB-500 5MG (5.69 mg) COA CLAIMED | TB-500 5MG (5.69 mg) | 5 mg vial | $34.27 | $6.85 | View ↗ |
| Protide Health United States TB-500 (Thymosin Beta-4) 10mg COA CLAIMED | TB-500 (Thymosin Beta-4) 10mg | 10 mg vial | $85.00 | $8.50 | View ↗ |
| Bio Pepz United States TB-500 10MG TESTED 81% · 4 | TB-500 10MG | 10 mg vial | $28.16 | $2.82best | View ↗ |
| S1 Research (Step One Ventures) TB-500 (TB4) 10mg — 10mg COA CLAIMED | TB-500 (TB4) 10mg — 10mg | 10 mg vial | $36.00 | $3.60 | View ↗ |
| Research Ready Peptides Canada TB 500 10mg COA CLAIMED | TB 500 10mg | 10 mg vial | $38.68 | $3.87 | View ↗ |
| Bio Pepz United States TB 500 5mg TESTED 81% · 4 | TB 500 5mg | 5 mg vial | $19.36 | $3.87 | View ↗ |
| Modified Aminos United States TB-500 10mg — Single Vial COA CLAIMED | TB-500 10mg — Single Vial | 10 mg vial | $39.99 | $4.00 | View ↗ |
| Glacier Aminos United States TB-500 10MG COA CLAIMED | TB-500 10MG | 10 mg vial | $41.29 | $4.13 | View ↗ |
| Imperial Peptides UK United Kingdom TB-500 5mg COA CLAIMED | TB-500 5mg | 5 mg vial | $21.99 | $4.40 | View ↗ |
| Sigma Peptides United States TB-500 (Thymosin Beta-4) 10MG TESTED 73% · 3 | TB-500 (Thymosin Beta-4) 10MG | 10 mg vial | $44.98 | $4.50 | View ↗ |
| Eros Peptides United States TB-500 20MG COA CLAIMEDTESTED 77% · 3 | TB-500 20MG | 20 mg vial | $89.99 | $4.50 | View ↗ |
| Drexa Labs United States TB-500 — 10mg COA CLAIMED | TB-500 — 10mg | 10 mg vial | $49.00 | $4.90 | View ↗ |
| Eros Peptides United States TB-500 10MG COA CLAIMEDTESTED 77% · 3 | TB-500 10MG | 10 mg vial | $49.99 | $5.00 | View ↗ |
| Tide Labs United Kingdom TB-500 — 5 mg COA CLAIMED | TB-500 — 5 mg | 5 mg vial | $26.40 | $5.28 | View ↗ |
| AminoVault United States TB-500 10mg — US Sourced COA CLAIMED | TB-500 10mg — US Sourced | 10 mg vial | $53.50 | $5.35 | View ↗ |
| Lab Rat Peptide United States TB500 10MG TESTED 76% · 2 | TB500 10MG | 10 mg vial | $55.00 | $5.50 | View ↗ |
| Zenith Biopeptides United States TB-500 10mg COA CLAIMED | TB-500 10mg | 10 mg vial | $55.00 | $5.50 | View ↗ |
| Eros Peptides United States TB-500 5MG COA CLAIMEDTESTED 77% · 3 | TB-500 5MG | 5 mg vial | $27.99 | $5.60 | View ↗ |
| Oasis Labs United States TB-500 10mg COA CLAIMED | TB-500 10mg | 10 mg vial | $57.00 | $5.70 | View ↗ |
| Trusted Peptide United States TB-500 5mg TESTED 80% · 2 | TB-500 5mg | 5 mg vial | $29.00 | $5.80 | View ↗ |
| Modern Aminos United States TB-500 (Thymosin Beta-4) — 10MG COA CLAIMEDTESTED 79% · 6 | TB-500 (Thymosin Beta-4) — 10MG | 10 mg vial | $59.00 | $5.90 | View ↗ |
| Peptide Crafters United States TB-500 – Thymosin Beta-4 (10mg) COA CLAIMEDTESTED 61% · 60 | TB-500 – Thymosin Beta-4 (10mg) | 10 mg vial | $60.00 | $6.00 | View ↗ |
| Verified Peptides United States TB-500 Peptide (TB4) 10MG COA CLAIMEDTESTED 65% · 39 | TB-500 Peptide (TB4) 10MG | 10 mg vial | $62.00 | $6.20 | View ↗ |
| Paramount Peptides United States Thymosin Beta 4 (TB500) (20mg) COA CLAIMEDTESTED 65% · 65 | Thymosin Beta 4 (TB500) (20mg) | 20 mg vial | $125.00 | $6.25 | View ↗ |
| Honest Peptide United States TB-500 — 10mg COA CLAIMED | TB-500 — 10mg | 10 mg vial | $63.00 | $6.30 | View ↗ |
| Atomik Labz United States TB-500 (Thymosin Beta-4) (43 AA) – 20mg NO COA FOUNDTESTED 69% · 44 | TB-500 (Thymosin Beta-4) (43 AA) – 20mg | 20 mg vial | $130.00 | $6.50 | View ↗ |
| Atomik Labz United States TB-500 (Thymosin Beta-4) (43 AA) – 10mg NO COA FOUNDTESTED 69% · 44 | TB-500 (Thymosin Beta-4) (43 AA) – 10mg | 10 mg vial | $65.00 | $6.50 | View ↗ |
| Peptide Hub United States TB-500 — 10mg COA CLAIMED | TB-500 — 10mg | 10 mg vial | $65.00 | $6.50 | View ↗ |
| Paramount Peptides United States Thymosin Beta 4 (TB500) (10mg) COA CLAIMEDTESTED 65% · 65 | Thymosin Beta 4 (TB500) (10mg) | 10 mg vial | $68.00 | $6.80 | View ↗ |
| Alpha Pro Peptides United States TB-500 (10mg) COA CLAIMED | TB-500 (10mg) | 10 mg vial | $69.99 | $7.00 | View ↗ |
| FRO Peptides United States TB-500 – Research Peptide (10mg) — 10mg COA CLAIMED | TB-500 – Research Peptide (10mg) — 10mg | 10 mg vial | $69.99 | $7.00 | View ↗ |
| Certified Peptides United States TB-500 10 MG COA CLAIMEDTESTED 60% · 13 | TB-500 10 MG | 10 mg vial | $70.00 | $7.00 | View ↗ |
| Polaris Peptides United States TB-500 10mg NO COA FOUNDTESTED 64% · 107 | TB-500 10mg | 10 mg vial | $70.00 | $7.00 | View ↗ |
| Prime Lab Peptides United States TB-500 – 10mg COA CLAIMED | TB-500 – 10mg | 10 mg vial | $70.00 | $7.00 | View ↗ |
| Ameano Peptides United States TB-500 (Thymosin Beta-4) 10mg COA CLAIMEDTESTED 66% · 12 | TB-500 (Thymosin Beta-4) 10mg | 10 mg vial | $75.00 | $7.50 | View ↗ |
| The Naughty Needle United States TB-500 — 10mg TESTED 80% · 2 | TB-500 — 10mg | 10 mg vial | $75.00 | $7.50 | View ↗ |
| PureChems Europe (country not stated) TB-500 — 5mg COA CLAIMED | TB-500 — 5mg | 5 mg vial | $39.99 | $8.00 | View ↗ |
| PSPeptides United States TB-500 (1 Vial) — 10MG COA CLAIMED | TB-500 (1 Vial) — 10MG | 10 mg vial | $79.99 | $8.00 | View ↗ |
| Amino USA United States TB-500 5mg COA CLAIMEDTESTED 32% · 3 | TB-500 5mg | 5 mg vial | $40.00 | $8.00 | View ↗ |
| Amino USA United States TB-500 10mg COA CLAIMEDTESTED 32% · 3 | TB-500 10mg | 10 mg vial | $80.00 | $8.00 | View ↗ |
| Peptide Hub United States TB-500 — 5mg COA CLAIMED | TB-500 — 5mg | 5 mg vial | $40.00 | $8.00 | View ↗ |
| Umbrella Labs United States TB-500 THYMOSIN BETA-4 PEPTIDE 2MG/5MG/10MG VIAL — 10 Milligrams Vial COA CLAIMED | TB-500 THYMOSIN BETA-4 PEPTIDE 2MG/5MG/10MG VIAL — 10 Milligrams Vial | 10 mg vial | $85.99 | $8.60 | View ↗ |
| Umbrella Labs United States TB-500 THYMOSIN BETA-4 PEPTIDE — 10 Milligrams Vial COA CLAIMED | TB-500 THYMOSIN BETA-4 PEPTIDE — 10 Milligrams Vial | 10 mg vial | $85.99 | $8.60 | View ↗ |
| Accelerate Labs United States TB-500 5MG COA CLAIMEDTESTED 65% · 20 | TB-500 5MG | 5 mg vial | $44.99 | $9.00 | View ↗ |
| PSPeptides United States TB-500 (1 Vial) — 5MG COA CLAIMED | TB-500 (1 Vial) — 5MG | 5 mg vial | $44.99 | $9.00 | View ↗ |
| Prime Lab Peptides United States TB-500 – 5mg COA CLAIMED | TB-500 – 5mg | 5 mg vial | $45.00 | $9.00 | View ↗ |
| The Naughty Needle United States TB-500 — 5mg TESTED 80% · 2 | TB-500 — 5mg | 5 mg vial | $45.00 | $9.00 | View ↗ |
| Alpha Pro Peptides United States TB-500 (5mg) COA CLAIMED | TB-500 (5mg) | 5 mg vial | $45.99 | $9.20 | View ↗ |
| Tide Labs United Kingdom TB-500 — 2 mg COA CLAIMED | TB-500 — 2 mg | 2 mg vial | $18.40 | $9.20 | View ↗ |
| Direct Peptides United States TB-500 — 10mg 1 Vial NO COA FOUNDTESTED 76% · 2 | TB-500 — 10mg 1 Vial | 10 mg vial | $99.00 | $9.90 | View ↗ |
| Licensed Peptides United States TB-500 (Thymosin Beta-4) 10mg — 10mg 1 pack COA CLAIMED | TB-500 (Thymosin Beta-4) 10mg — 10mg 1 pack | 10 mg vial | $99.99 | $10.00 | View ↗ |
| ResearchChemical.com United States TB 500 10mg COA CLAIMED | TB 500 10mg | 10 mg vial | $99.99 | $10.00 | View ↗ |
| AminoVault United States TB-500 10mg — US cGMP COA CLAIMED | TB-500 10mg — US cGMP | 10 mg vial | $101.00 | $10.10 | View ↗ |
| Umbrella Labs United States TB-500 THYMOSIN BETA-4 PEPTIDE 2MG/5MG/10MG VIAL — 5 Milligrams Vial COA CLAIMED | TB-500 THYMOSIN BETA-4 PEPTIDE 2MG/5MG/10MG VIAL — 5 Milligrams Vial | 5 mg vial | $50.99 | $10.20 | View ↗ |
| Umbrella Labs United States TB-500 THYMOSIN BETA-4 PEPTIDE — 5 Milligrams Vial COA CLAIMED | TB-500 THYMOSIN BETA-4 PEPTIDE — 5 Milligrams Vial | 5 mg vial | $50.99 | $10.20 | View ↗ |
| Behemoth Labz United States Thymosin Beta-4 — 5mg COA CLAIMED | Thymosin Beta-4 — 5mg | 5 mg vial | $52.49 | $10.50 | View ↗ |
| Behemoth Labz United States Thymosin Beta-4 — 10mg COA CLAIMED | Thymosin Beta-4 — 10mg | 10 mg vial | $105.00 | $10.50 | View ↗ |
| Ascension Peptides United States TB-500 (5MG) COA CLAIMED | TB-500 (5MG) | 5 mg vial | $54.00 | $10.80 | View ↗ |
| Paramount Peptides United States Thymosin Beta 4 (TB500) (5mg) COA CLAIMEDTESTED 65% · 65 | Thymosin Beta 4 (TB500) (5mg) | 5 mg vial | $60.00 | $12.00 | View ↗ |
| Biotech Peptides United States TB-500 (Thymosin Beta-4) (10mg) COA CLAIMED | TB-500 (Thymosin Beta-4) (10mg) | 10 mg vial | $124.00 | $12.40 | View ↗ |
| Warrior Makers United States TB-500 (Thymosin Beta-4) 10MG COA CLAIMED | TB-500 (Thymosin Beta-4) 10MG | 10 mg vial | $139.00 | $13.90 | View ↗ |
| ResearchChemical.com United States TB 500 5mg COA CLAIMED | TB 500 5mg | 5 mg vial | $69.99 | $14.00 | View ↗ |
| Sports Technology Labs United States TB-500 5 mg COA CLAIMED | TB-500 5 mg | 5 mg vial | $69.99 | $14.00 | View ↗ |
| Core Peptides United States TB-500 (Thymosin Beta 4) – 5MG / 10MG — 10mg COA CLAIMED | TB-500 (Thymosin Beta 4) – 5MG / 10MG — 10mg | 10 mg vial | $140.00 | $14.00 | View ↗ |
| Based Research United States Thymosin Beta 4 (TB500) — 10 mg COA CLAIMED | Thymosin Beta 4 (TB500) — 10 mg | 10 mg vial | $140.00 | $14.00 | View ↗ |
| Masters Peptides (M-Peptides) United States Thymosin Beta 4 (TB500) — 10mg COA CLAIMED | Thymosin Beta 4 (TB500) — 10mg | 10 mg vial | $141.00 | $14.10 | View ↗ |
| Biotech Peptides United States TB-500 (Thymosin Beta-4) (5mg) COA CLAIMED | TB-500 (Thymosin Beta-4) (5mg) | 5 mg vial | $72.00 | $14.40 | View ↗ |
| Based Research United States Thymosin Beta 4 (TB500) — 5 mg COA CLAIMED | Thymosin Beta 4 (TB500) — 5 mg | 5 mg vial | $75.00 | $15.00 | View ↗ |
| Masters Peptides (M-Peptides) United States Thymosin Beta 4 (TB500) — 5mg COA CLAIMED | Thymosin Beta 4 (TB500) — 5mg | 5 mg vial | $76.00 | $15.20 | View ↗ |
| Core Peptides United States TB-500 (Thymosin Beta 4) – 5MG / 10MG — 5mg COA CLAIMED | TB-500 (Thymosin Beta 4) – 5MG / 10MG — 5mg | 5 mg vial | $78.00 | $15.60 | View ↗ |
| BioLongevity Labs United States TB-500 (10mg) COA CLAIMEDTESTED 71% · 34 | TB-500 (10mg) | 10 mg vial | $164.97 | $16.50 | View ↗ |
| Umbrella Labs United States TB-500 THYMOSIN BETA-4 PEPTIDE 2MG/5MG/10MG VIAL — 2 Milligrams Vial COA CLAIMED | TB-500 THYMOSIN BETA-4 PEPTIDE 2MG/5MG/10MG VIAL — 2 Milligrams Vial | 2 mg vial | $33.99 | $17.00 | View ↗ |
| Umbrella Labs United States TB-500 THYMOSIN BETA-4 PEPTIDE — 2 Milligrams Vial COA CLAIMED | TB-500 THYMOSIN BETA-4 PEPTIDE — 2 Milligrams Vial | 2 mg vial | $33.99 | $17.00 | View ↗ |
| Peptide Pros United States TB-500 (Thymosin B4) 2mg COA CLAIMED | TB-500 (Thymosin B4) 2mg | 2 mg vial | $37.25 | $18.63 | View ↗ |
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TB-500 pricing FAQ
What is the cheapest TB-500 right now?
Bio Pepz currently lists TB-500 at $2.82 per mg (TB-500 10MG, $28.16), the lowest of the 49 vendors we compare. The median is $7.00 per mg, so shopping around can save a lot.
How much does TB-500 cost per mg?
Across 49 vendors, injectable TB-500 ranges from $2.82 to $18.63 per mg, with a median of $7.00. Larger vials generally cost less per mg, which is why we normalize every listing to a price per milligram.
How much does a 10 mg vial of TB-500 cost?
A 10 mg vial of TB-500 costs between $28.16 and $164.97 across 41 vendors, with a median of $69.99. The cheapest is Bio Pepz at $28.16.
Which TB-500 vendors publish a COA?
47 of the 56 vendors listing TB-500 say they publish certificates of analysis (COAs). A COA is the vendor’s own claim and can be copied or re-dated, so we also show independent test ratings (Finnrick) on each vendor page where they exist, and let you filter to “COA claimed” vendors.
Does TB-500 come in forms other than injectable vials?
We also track sprays, capsules listings for TB-500. They are priced per mg of active ingredient too, but usually cost more per mg than lyophilized vials. Use the form filter above to compare them.
Is there human research on TB-500?
PubMed lists 630 papers on TB-500: 3 randomized controlled trials, 9 human clinical studies and 216 animal or lab-only studies, plus 18 registered clinical trials. We grade the evidence base as “Strong”: Several randomized controlled trials in humans, often summarized by meta-analyses. This describes how much research exists, not whether it works.
Is TB-500 legal and safe to use?
TB-500 is sold for laboratory research use only. PeptideComps compares prices and does not give medical advice, and we can’t vouch for any product’s quality or legality — check the rules where you live.