For Research Purposes Only · Not For Human Consumption

Home/Buy/TB-500 5mg
Recovery≥98% HPLC
Lot UKP-TB5-2408
TB-500 5mg vial
Third-party tested
CoA available
UK dispatched
CoA verified

Recovery / Healing

Buy TB-500 5mg UK | Research Grade

Thymosin Beta-4 fragment analogue. Researched for tissue repair, inflammation and cardiovascular recovery.

£23.99

In stock

Inc. VAT · Add £26.01 more for free UK shipping

1

SSL encrypted · Same-day dispatch before 6pm · CoA on this lot

Order before 6pm tomorrow for same-day dispatch

Independently HPLC-tested. Lot-matched CoA available on request — quote your batch and order ID.

What ships with your order

  • 011 × TB-500 5mg — lyophilised, sealed glass vial
  • 02Signed CoA — batch UKP-TB5-2408, HPLC-UV + mass-spec
  • 03Royal Mail Tracked 24 — same-day dispatch before 6pm, Mon–Fri
Research Compound

About TB-500

TB-500 is a synthetic fragment analogue of Thymosin Beta-4, a naturally occurring 43-amino-acid peptide with a well-documented role in actin regulation and cell migration. It is one of the most widely cited compounds in systemic tissue-repair research, with published work spanning cardiovascular tissue recovery, inflammation modulation and wound-healing models. Supplied as lyophilised powder at ≥98% HPLC purity, with a third-party Certificate of Analysis on every batch.

Research areas

  • Muscle repair
  • Inflammation
  • Cardiovascular tissue
  • Flexibility
  • Systemic recovery
Compound Profile

TB-500 5mg — mechanism, research applications & compound data

TB-500 is a synthetic analogue of the active fragment of Thymosin Beta-4 (TB4), one of the body's most abundant actin-binding regenerative peptides. Peptides UK supplies TB-500 5mg lyophilised powder at ≥98% HPLC-UV verified purity, with a signed third-party Certificate of Analysis on every batch, dispatched same-day from Manchester via Royal Mail Tracked 24.

01

What is TB-500? Thymosin Beta-4 fragment analogue

TB-500 is a synthetic peptide corresponding to the active region of Thymosin Beta-4, a 43-amino-acid naturally occurring peptide present in nearly all human tissues and the highest-concentration G-actin sequestering molecule in mammalian cells. Synthetic TB-500 reproduces the biologically active fragment responsible for actin regulation, cell migration and angiogenesis observed in TB4 research, while being significantly more soluble and easier to handle in laboratory settings.

02

TB-500 mechanism of action in preclinical research

Research has linked TB-500 to G-actin sequestration and cytoskeletal reorganisation, upregulation of cell migration in fibroblasts, keratinocytes and endothelial cells, modulation of inflammation through suppression of NF-κB signalling, promotion of angiogenesis via VEGF and tie-2 pathways, and accelerated tissue repair in cardiac, dermal and musculoskeletal models. Its small size relative to native TB4 also gives it favourable distribution properties in tissue-penetration research.

03

TB-500 research applications

Published research has investigated TB-500 in wound-healing models, cardiac ischaemia and post-infarction repair studies, corneal regeneration, tendon and ligament recovery, neuroprotection in stroke models, hair follicle migration studies, and inflammation modulation in autoimmune research models. It is widely used alongside BPC-157 in comparative recovery-peptide research because the two compounds act through different but complementary regenerative pathways.

04

Reconstitution, storage and stability for TB-500

Store the lyophilised TB-500 vial at -20°C, sealed and protected from light. Reconstitute with bacteriostatic water (0.9% benzyl alcohol) — a typical starting volume is 2ml per 5mg vial. Add solvent down the inside wall of the vial gently; do not agitate. Once reconstituted, refrigerate at 2–8°C and use within 28 days. Do not refreeze after reconstitution.

05

≥98% HPLC purity verified by independent laboratories

Every TB-500 5mg vial is independently tested by Janoshik Analytical or Aspen Bioanalytics to ≥98% HPLC-UV purity with mass-spectrometry identity confirmation against the published molecular weight of approximately 4,963 Da. The signed PDF Certificate of Analysis is supplied with every order and matches the lot number printed on the vial.

06

Why Peptides UK for TB-500

Peptides UK is a UK-based research peptide supplier with same-day dispatch on orders before 6pm GMT, cold-chain insulated packaging, Royal Mail Tracked 24 delivery, and verifiable third-party batch CoAs available on request. Stocked in the UK, dispatched from Manchester, supported by a UK customer service team that replies within 4 working hours.

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References & further reading

Primary sources cited on this page

TB-500 is a synthetic peptide corresponding to a fragment of Thymosin Beta-4 (TMSB4X), a 43-residue actin-sequestering peptide first isolated from calf thymus in 1981 by Low, Hu and Goldstein. TB-500 is the C-terminal fragment most commonly studied in wound-healing and cardiac repair research.

Regulatory & compliance notice

This product is supplied strictly for in-vitro laboratory research. It is not a licensed medicine in the United Kingdom, is not approved by the Medicines and Healthcare products Regulatory Agency (MHRA) or the European Medicines Agency for human or veterinary use, and is not intended to diagnose, treat, cure or prevent any disease. Nothing on this page constitutes medical advice.

External links point to primary literature or regulatory records and open in a new tab. Citations are provided so the reader can independently verify every factual claim made on this page. Last reviewed 22 July 2026.

Certificate of Analysis

TB-500 5mg

Independent lab
Janoshik Analytical
Batch number
UKP-TB5-2408
Method
HPLC-UV + MS
Result
≥98% HPLC
Download CoA (PDF) — TB-500 5mgView full Certificate of Analysis for batch UKP-TB5-2408

The CoA you download is the exact certificate produced for this lot — no edits.

Storage & handling

Keep it stable, keep it sterile

  • Storage: Store lyophilised powder at -20°C in a sealed vial. Protect from light and moisture. Allow the vial to reach room temperature before opening to prevent condensation entering the vial. Do not store in a frost-free freezer.
  • Reconstitution: Reconstitute using bacteriostatic water (0.9% benzyl alcohol). Add solvent slowly down the side of the vial — do not shake. Allow to dissolve gently at room temperature.
  • Reconstituted stability: After reconstitution, store at 2–8°C and use within 28 days.
  • Shipping: All vials are dispatched in insulated mailers with ice packs to maintain cold chain during Royal Mail Tracked 24 transit.
+ Add Bacteriostatic Water (£4.99) →
FAQ

TB-500 5mg — common questions

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Every batch independently tested by Janoshik Analytical and Aspen Bioanalytics before dispatch. Signed certificates available on every product page.

Third-party HPLC-UV testing Lot-matched CoA on every order Batch-traceable from dispatch

Legal notice

This product is sold strictly for in-vitro laboratory research purposes only. It is not approved for human or veterinary use, is not a drug, food, or cosmetic, and should not be misused as such. Peptides UK accepts no liability for misuse. By purchasing you confirm you are a qualified researcher aged 18 or over.

TB-500 5mg

£23.99