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Regenerative Research · Reviewed 14 October 2026
Buy TB-500
Also known as Thymosin Beta-4, Thymosin β4, Tβ4, TB4, Timbetasin, TMSB4X product
TB-500 research material supplied as full-length thymosin beta-4 (Tβ4), the 43-residue N-acetylated, actin-sequestering peptide encoded by the human TMSB4X gene.
$119 10-vial pack · 2mg · in stock
Single vials from $50 (order minimum: 5 single vials, or any 10-vial peptide pack).
For laboratory and research use only — not for human or veterinary use. 21+.
Inside New-U Research Compounds
TB-500 at a glance
What is TB-500?
TB-500 is supplied as full-length thymosin beta-4 (Tβ4), a 43-amino-acid N-acetylated peptide encoded by the human TMSB4X gene.
What TB-500 research examines
Summarised from published preclinical and clinical literature; findings describe study models, not uses of the research material.
TB-500 price and pack sizes
All packs are >99% HPLC research-grade material. Cost per mg is the price divided by the total mg in the pack. Single vials are also listed; an order needs at least 5 eligible single vials in total, or any 10-vial peptide pack. Standard delivery fee $35 USD, free over $350 USD; some destinations differ and the exact charge is shown at checkout.
Current TB-500 certificate
The current published certificate for TB-500 is an independent Janoshik Analytical report dated 29 January 2026.
Certificates of Analysis are published on the website — on each product page and at /coa — rather than packed with orders. Batch analysis reports identity and purity for the sample tested. It does not establish sterility, endotoxin or heavy-metal status, pharmaceutical equivalence, or any clinical property.
Mechanism summary
In the cited literature, Tβ4 binds monomeric actin through a central motif and has been associated with several cell-level activities attributed to separate regions of the peptide.
Pharmacokinetics at a glance
Average molecular weight 4963 and formula C212H350N56O78S are PubChem values for thymosin beta 4 (CID 45382195). UniProt describes the chain as disordered.
Evidence summary
Evidence base: Tier 2: Animal / preclinical
The sources cited on this page are laboratory and review literature. No controlled human data are cited here, and no regulator approval for human use is claimed.
Animal and laboratory studies
Buying TB-500: ordering and delivery
Explore TB-500 research
Published research, analytical evidence and comparisons for this compound. Research use only.
Frequently asked questions
Where can I buy TB-500?
TB-500 (also known as Thymosin Beta-4) is available directly from New-U Research Compounds at https://new-u.io/peptide/tb-500. It is supplied as lyophilised research-grade material; every released sale batch is independently verified by Janoshik Analytical and Freedom Diagnostics before it is offered for sale, and orders ship direct from source worldwide (approximately 6–14 business days).
How much does TB-500 cost?
TB-500 starts at $119 for a 10-vial research pack (2mg per vial) at New-U Research Compounds, with 10 pack sizes listed; single vials from $50 are also listed (an order needs at least 5 eligible single vials in total, or any 10-vial peptide pack). Orders over $350 ship free.
Is New-U TB-500 third-party tested?
Yes. Released TB-500 batches are verified by independent laboratories (Janoshik Analytical and Freedom Diagnostics) for identity and purity before they are offered for sale. The current published certificate (Janoshik Analytical, 29 January 2026) reports 99.741% purity and is published at https://new-u.io/coa/tb-500.
How fast does TB-500 ship, and do you ship internationally?
TB-500 ships discreetly and tracked worldwide. US orders ship from the USA or China depending on stock and fulfilment; all other destinations ship from China, direct from the manufacturer. Delivery takes approximately 6–14 business days worldwide. Shipping is free on orders over $350. Card and cryptocurrency payments are accepted.
Is it legal to buy TB-500?
In the United States, TB-500 is not approved by the FDA for human consumption and is not sold for that purpose. Research use only - all claims made on this site are for testing and research use only. Regulatory requirements vary by product, intended use and jurisdiction. Purchasers are responsible for ensuring that acquisition and use of research material complies with applicable requirements.
What is TB-500 used for in research?
TB-500 research material supplied as full-length thymosin beta-4 (Tβ4), the 43-residue N-acetylated, actin-sequestering peptide encoded by the human TMSB4X gene. New-U supplies TB-500 as research-grade reference material for laboratory and in-vitro or animal-model investigation only. Mechanism, pharmacokinetics and study context are summarised on the TB-500 research profile.
What is the typical TB-500 research dosage?
Reconstitution volumes and dosing reported in the literature for TB-500 are described in research-model terms only. New-U Research Compounds supplies TB-500 strictly for laboratory research and does not provide human-use dosing guidance. Reconstitution math and study-reported ranges are covered on the full research profile.
What do I use to reconstitute TB-500?
Lyophilised TB-500 is reconstituted with bacteriostatic water - sterile water with 0.9% benzyl alcohol, the standard multi-use diluent for research peptides. New-U supplies USP-grade bacteriostatic water at https://new-u.io/peptide/bacteriostatic-water, and a free reconstitution calculator at https://new-u.io/tracker/calculator works out the volume for any peptide.
Can I buy TB-500 online and how fast does it ship?
Yes. TB-500 can be ordered online directly from New-U Research Compounds with card or cryptocurrency, shipped direct from source discreetly worldwide. Delivery is approximately 6–14 business days worldwide. Free shipping applies to orders over $350.
Can I buy TB-500 in bulk?
TB-500 ships in 10-vial research packs as standard, in 10 pack sizes — the larger mg vials lower the per-mg cost. Multi-pack orders get direct-from-source pricing and free shipping over $350. For wholesale or recurring laboratory-supply volumes, contact New-U Research Compounds at https://new-u.io/contact.
What should I look for when choosing where to buy TB-500?
For research-grade TB-500, verify four things: (1) independent third-party purity testing with a published Certificate of Analysis - New-U uses Janoshik Analytical and Freedom Diagnostics; (2) lyophilised material with documented storage and handling; (3) transparent direct-from-source pricing rather than marketplace markup; and (4) clear research-use-only framing. New-U Research Compounds meets all four at https://new-u.io/peptide/tb-500, and the current TB-500 certificate is at https://new-u.io/coa/tb-500.
Can I buy TB-500 and BPC-157 together (the "Wolverine stack")?
Yes. New-U Research Compounds supplies both TB-500 and BPC-157 as separate research-grade vials. They are studied together because they support tissue repair through different mechanisms - TB-500 through actin regulation, angiogenesis, and NF-κB modulation, and BPC-157 through the VEGFR2/eNOS pathway and growth-hormone-receptor upregulation. Order TB-500 at https://new-u.io/peptide/tb-500 and BPC-157 at https://new-u.io/peptide/bpc-157.
What is TB-500 on this site?
It is supplied as full-length thymosin beta-4 (Tβ4): a 43-amino-acid, N-acetylated peptide with the human sequence Ac-SDKPDMAEIEKFDKSKLKKTETQEKNPLPSKETIEQEKQAGES (UniProt P62328).
Is this the 7-amino-acid LKKTETQ fragment?
No. LKKTETQ (residues 17-23) is the central actin-binding motif inside the 43-residue peptide. The product is the whole chain, not that segment.
What is the molecular weight and formula?
PubChem lists thymosin beta 4 (CID 45382195) with the formula C212H350N56O78S and an average molecular weight of 4963 Da.
Is the peptide acetylated?
Yes. UniProt P62328 records N-acetylserine at the first residue of the mature chain after the initiator methionine is removed.
What does the literature say about its biology?
Reviews describe Tβ4 as the major actin-sequestering molecule of eukaryotic cells, with the central actin-binding domain at residues 17-23 and the Ac-SDKP site at the N-terminus. These are laboratory descriptions, not statements about human effects.
Are there human data?
No controlled human data are cited on this page, and human safety is not established.
Does New-U give dosing or administration guidance?
No. This material is for laboratory research only and no amount, schedule or administration guidance is published.
Is TB-500 approved for human use?
No approval for human use is claimed. It is sold as a research chemical, not for human or veterinary use.
How should the research material be stored?
Store the lyophilised powder frozen and protected from light, and follow the batch-specific handling documentation.
What vial sizes are offered?
New-U lists TB-500 as 10-vial packs at 2 mg, 5 mg, 10 mg, 20 mg, 30 mg, 40 mg, 50 mg or 60 mg per vial, and as single sample vials at 5 mg and 10 mg; see the pricing table on this page.
Research references
Independent literature and reference sources for TB-500. Provided for scientific context - New-U Research Compounds supplies research-use-only material.
Looking for mechanism of action, pharmacokinetics, dosage ranges and source references? See the full TB-500 research profile. Every compound profile is listed in the research peptide index.
Part of the Tissue repair & recovery research research area — explore related compounds, guides and sources.
PRECISION. PURITY. PERFORMANCE.
Research peptides. Third-party Certificates of Analysis (Janoshik Analytical & Freedom Diagnostics) are published on the website. Supplied strictly for laboratory research use.
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Research use only - all claims made on this site are for testing and research use only. Purchasers must be 21 years of age or older.
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