Regenerative · Research kit
TB-500
aka Thymosin Beta-4 fragment
4.9· 8 reviews
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 · ≈ €0.31/day for ~120 days · €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 — it's how serious labs and long-protocol researchers actually buy, and it's how we keep quality and price honest.
- ✓ Lower €/mg — batching 10 vials cuts our fill cost, and we pass it to you (per-vial price is 40–60% lower than typical single-vial pricing).
- ✓ One batch, one COA — all 10 vials come from the same HPLC-verified lot, so your data stays consistent across a full study.
- ✓ Real supply for real protocols — a 10-vial kit covers ~30–90 days of research depending on dose, so you're not re-ordering mid-study.
- ✓ One shipment, one customs pass — fewer parcels = lower risk, lower shipping cost per vial, faster to your bench.
Choose strength · 10 vials per kit
Bulk kit pricing
- 2+ kitssave 5%
- 3+ kitssave 10%
- 5+ kitssave 15%
Auto-applied at checkout. Stack sizes across the cart.
- HPLC ≥99%COA per batch
- Ships in 24hTracked, discreet
- Free re-shipIf lost or seized
Rilz26 at checkout — free 6-month support + 30 peptide guides
Secure bank-transfer checkout · IBAN provided instantly · Ships from Spain within 24h
€ 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.
Verify any COA at www.janoshik.com/verify using the unique key printed on the report.
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.
Ships from Spain, EU-wide
Tracked delivery 2–5 working days across the EU. Discreet, plain packaging. UK & worldwide options.
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 2–5 working 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.
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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.
We email one short research insight per day. Unsubscribe anytime in one click.
Affiliate program · 20% commission
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Apply to become an affiliateTB-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.
- TB-500 for Stockholm researchers
- TB-500 for Switzerland researchers
- TB-500 for the Netherlands researchers
- TB-500 for Utah researchers
- TB-500 for Vigo researchers
- TB-500 for West Virginia researchers
- TB-500 for Zaragoza researchers
- TB-500 for Alaska researchers
- TB-500 for Arizona researchers
- TB-500 for Badajoz researchers
- TB-500 for Benahavís researchers
- TB-500 for Boston researchers
- TB-500 for Burgos researchers
- TB-500 for Castellón researchers
- TB-500 for Córdoba researchers
- TB-500 for Dallas researchers
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- TB-500 for Exeter researchers
- TB-500 for Georgia researchers
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- TB-500 for Indiana researchers
- TB-500 for Kansas researchers
- TB-500 for Leicester researchers
Customer reviews
What researchers say about TB-500
- Verified
COA matched batch number exactly
Ordered three batches of BPC-157 over four months. Each shipment arrived cold-packed with a COA and the batch numbers cross-checked against the public testing database. Purity reported between 98.7% and 99.2% — consistent with what we measured in-house by HPLC.
Dr. M. AnderssonStockholm, Sweden - Verified
Fast UK delivery, clean reconstitution
Discreet packaging, arrived in 48 hours to London. Lyophilised cake was firm, dissolved completely in bac water with no cloudiness. Dose math in IU on the calculator made repeat dosing trivial.
J. WhitmoreLondon, UK - Verified
Best documentation I've seen from a supplier
We compared three suppliers as part of a sourcing audit. Regena was the only one with chromatograms, retention times and lab-named COAs published per batch. That's the standard the rest of the industry should meet.
Prof. L. RomanoMilan, Italy - Verified
Good product, customs took an extra day
Product itself is excellent — clean reconstitution, COA available. Customs added 24 hours which is outside Regena's control. Support replied within an hour when I asked for an update.
K. PetersenCopenhagen, Denmark - Verified
Independent lab agreed with stated purity
We sent a sub-sample to an independent lab. Their result was within 0.4% of the published Regena COA. That's a level of transparency you almost never see in research-peptide sourcing.
Dr. S. PatelBirmingham, UK - Verified
Cold chain held the whole way
Temperature indicator strip in the package stayed in the green. Vials still chilled on arrival despite a 3-day route. Whoever packs these boxes knows what they're doing.
A. MüllerBerlin, Germany
Share your experience
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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. (2026-07-18). TB-500 — HPLC-verified research peptide. https://www.regena-peptides.com/peptides/tb-500
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