How many vials are in a TB-500 kit?

Every kit is 10 vials. The "5mg" label means 5 mg per vial, so a 5 mg kit gives 50 mg total, a 10 mg kit gives 100 mg total, and so on.

Is the price per vial or per kit?

Prices shown are for the full 10-vial kit. We always show the per-vial and per-mg breakdown so you can compare honestly.

What payment methods do you accept?

SEPA bank transfer (IBAN) is our default — secure, fee-free, instant confirmation. We can also send a secure card-payment link on request via WhatsApp.

Do you ship outside the EU?

Yes — UK, USA, Middle East, Asia and Australia. EU is fastest (5–18 business days). International is tracked and discreet. Some destinations are restricted — checkout will tell you.

How is purity verified?

Every batch is independently tested by HPLC and mass spectrometry. We can send the batch-specific COA for your order on request.

Is this intended for human use?

No. TB-500 sold by Regena Peptides is a research compound supplied strictly for in-vitro laboratory investigation by qualified professionals. Not for human or veterinary use.

Is TB-500 the same as thymosin β4?

TB-500 is the synthetic active fragment (residues 17–23) — the smallest bioactive region of the full 43-amino-acid thymosin β4 protein.

Storage recommendations?

Lyophilised at −20 °C for long-term stability; reconstituted at 2–8 °C.

Is TB-500 approved for human use?

No. It is not licensed for human or veterinary use in any major jurisdiction — supplied strictly as a research reference compound.

Is TB-500 banned in sport?

Yes — WADA S2 (peptide hormones and mimetics), prohibited in and out of competition.

Can TB-500 and BPC-157 be studied together?

Yes — the BPC-157 + TB-500 blend is a common combined-protocol research reference kit and is separately listed.

How is purity verified?

HPLC ≥99% with mass-spectrometry confirmation. Batch-specific COAs available on request.

Available documentation

Tracked worldwide shipping

Secure bank transfer

Research use only

Regenerative · Research kit

TB-500laboratory reference kit

aka Thymosin Beta-4 fragment

Kit of 10 vials

Thymosin Beta-4 fragment studied in soft tissue repair and migration assays.

Class: Actin-sequestering peptide
Half-life: ~2–3 h
Kit: 10 vials
Use: Research only

Kit of 10 vials · 10mg per vial

Best value

€369.00

€36.90 per vial · €3.69/mg

Sold as 10-vial kits · minimum order

We don't sell single vials. Every order is a sealed 10-vial research kit with the size and full kit price shown before ordering.

✓ Batch documentation — ask for documentation matching the batch available to order.
✓ Clear format — the selected vial size, vial count and total kit price stay visible before adding to cart.

Choose your kit size

1 kit = 10 vials. Compare the full kit prices below.

Quantity

Every TB-500 option — one tap to send us the list5mg kit (10 vials) — €249.0010mg kit (10 vials) — €369.00Tap to open WhatsApp with every option already typed — we'll tell you which kit fits your research, and suggest anything else worth looking at.

✓ Sealed 10-vial kit (small glass bottles, lyophilised powder)
✓ Ask for the Certificate of Analysis available for this batch
✓ Tracked worldwide shipping from Germany, the USA or China · allow 5–18 business days from tracking
! You'll also need bacteriostatic water to mix your peptides

DocumentationAsk before ordering
Tracked delivery5–18 business days
Research use onlySee policy

Secure checkout · Wise card and bank-transfer options · Germany, USA or China fulfilment

Estimated delivery

Choose your country to see a delivery estimate.

Questions about TB-500? Message us about available sizes and documentation.

Payment options at checkout. Choose Wise or Monzo card payment, or pay by SEPA / international bank transfer.

Tracked worldwide shipping. Discreet packaging from Germany, the USA or China; allow 5–18 business days after tracking is issued. Shipping details.

Independent HPLC + MS test: 99.039%. View batch LIYU20250901 COA · how to read it.

Read our purity policy or contact us before ordering.

View full TB-500 buyer page →

€ Price per mg — honest breakdown

Every TB-500 kit ships as 10 vials. Here's the exact maths so you can see which strength gives you the most peptide per euro. Larger kits are usually significantly cheaper per mg.

Kit price

€369.00

10 mg × 10 vials

Per vial

€36.90

€369.00 ÷ 10 vials

Total mg in kit

100 mg

10 mg × 10

Per mg

€3.69

€369.00 ÷ 100 mg

Compare every kit

Kit	Kit price	Per vial	Per mg
5 mg / vial	€249.00	€24.90	€4.98
10 mg / vialBest €/mg	€369.00	€36.90	€3.69

What is TB-500?

TB-500 corresponds to the active actin-binding fragment of Thymosin Beta-4. Research focuses on cell migration, angiogenesis and remodelling of the actin cytoskeleton.

Mechanism of action

Promotes cell migration, angiogenesis and actin remodeling.

Primary research areas

Soft tissue repair, fibroblast migration studies.

Research notes

Actin-sequestering action underlies its role in migration research.

TB-500: expanded research context

TB-500 is a synthetic version of the active 17-amino-acid fragment (residues 17–23) of thymosin β4. Thymosin β4 is a G-actin sequestering peptide implicated in cell migration, angiogenesis, and dermal, corneal and cardiac wound repair. TB-500 is used as a research reference for regenerative-signalling studies in soft tissue and vascular models.

Reported half-life is short, but downstream effects on actin cytoskeletal reorganisation persist beyond plasma exposure in in-vitro assays. Regulatory status mirrors BPC-157: TB-500 is prohibited by WADA (S2 peptide hormones and mimetics) and is not a licensed medicine.

Published clinical evidence

Selected peer-reviewed studies and outcome trials referenced in the TB-500 literature. Sources listed for orientation; full papers via PubMed / journal DOI.

Thymosin β4 in dermal wound repair
Annals of the New York Academy of Sciences · 2007
Landmark synthesis of thymosin β4 preclinical wound-healing data across dermal, corneal and cardiac models.
Thymosin β4 in myocardial infarction (mouse)
Nature · 2004 (Bock-Marquette et al.)
Systemic thymosin β4 reduced infarct size and improved cardiac function post-MI in a murine model.
Angiogenesis and endothelial migration in vitro
Journal of Cell Science · 2009
Thymosin β4 promoted endothelial cell migration, tubulogenesis and VEGF-driven vascular sprouting.
WADA Prohibited List — S2 peptide hormones and mimetics
World Anti-Doping Agency · 2024
TB-500 and thymosin β4 are prohibited in and out of competition under WADA S2.

Verified test batches — download COAs

Independent third-party Certificates of Analysis for recent TB-500 batches. Click any COA to open or download the full lab report — verify each result at www.janoshik.com/verify.

BatchLabPurityCOA

#0816 · #77285

HPLC + MS · 2025-09-02

Janoshik Analytical99.9%Download →

#0816 · #77284

HPLC + MS · 2025-09-02

Janoshik Analytical99.9%Download →

LIYU20250901 · #78710

HPLC + MS · 2025-09-18

Janoshik Analytical99.0%Download →

WWB-0830 · #48161

HPLC + MS · 2024-08-30

Janoshik Analytical99.8%Download →

Verify any COA at www.janoshik.com/verify using the unique key printed on the report. What is Janoshik?

Why researchers buy from Regena

HPLC ≥99% purity

Every batch independently tested. Mass spectrometry verification on every research compound. COAs on request.

10-vial kits, properly sealed

Lyophilized peptide, rubber-stoppered amber vials, batch-coded. Stable for shipping; cold storage on arrival.

Germany · USA · China hubs

Tracked delivery from the best hub for your destination and available stock. Discreet, plain packaging.

Secure SEPA bank transfer

Encrypted checkout, verified IBAN. No card details stored. Card payment links available on request.

How ordering works

1
Pick your TB-500 kit above
Each kit contains 10 vials. Choose your strength — bigger vials give you a lower €/mg.
2
Secure checkout in under 2 minutes
Add to cart, fill in shipping, get your IBAN and order reference instantly.
3
Pay by bank transfer (or card on request)
Bank transfer is fastest and fee-free. Need a card? Message us on WhatsApp and we'll send a payment link.
4
We ship within 24 hours
You get a tracking number by email + WhatsApp. EU delivery 5–18 business days. COA included on request.

Frequently asked questions

Research-use disclaimer

Information on this page is provided for educational and scientific reference purposes only. TB-500 is a research compound intended for in-vitro laboratory investigation by qualified professionals. Nothing here constitutes medical advice, dosing guidance or a recommendation for human or veterinary use. Half-life and mechanism descriptions reflect published literature approximations.

Need protocol guidance?

Book a free 20-minute consultation — we'll map TB-500 and adjacent reference compounds to your research goals.

Book consultation →

Add a solvent

Bacteriostatic Water
Kit of 10 × 10 ml vials · Standard solvent for most peptides
€149.00
Acetic Acid Kit
Kit of 10 × 3 ml vials (liquid) · For peptides that stay cloudy in BAC water
€149.00

Worldwide delivery from Fuengirola

Regena Peptides is based in Fuengirola, Spain and ships HPLC-verified research compounds worldwide — Europe, the UK and the USA — from our Germany, USA and China hubs, 5–18 business days from tracking.

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Available strengths: 5mg · 10mg

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Free download · PDF

Free: Peptide Storage & Reconstitution Guide

30-page PDF — vial handling, sterile reconstitution, dosing math, cold-chain storage. Plus a daily research insight email from the lab.

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Keep reading

TB-500 — shipped to research hubs worldwide

Same HPLC-verified TB-500 batch, same COA — tracked delivery to laboratories and independent researchers across Europe, the UK, the USA and beyond. Pick a hub for local shipping window and currency notes.

View every research hub we ship to →Browse the full peptide library Site index

Customer reviews

What researchers say about TB-500

Share your experience

Your review helps other researchers evaluate TB-500. We publish every real review — positive or critical — after a quick moderation pass to filter spam and PII.

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Cite this reference

Researching TB-500?

Copy a ready-made citation or HTML link. Backlinks from research blogs, lab wikis and biohacker communities help others find verified peptide sources.

Regena Peptides. (2026-10-22). TB-500 — HPLC-verified research peptide. https://regena.app/peptides/tb-500

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