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TB-500
Lab verified99.1% pureHPLC + Mass specEndotoxin tested
PS-202 · Tissue Repair & Recovery

TB-500

4.8 · 421 reviews

A synthetic version of the active region of Thymosin β4, studied for actin regulation, angiogenesis, and tissue repair.

Read the TB-500 research guide→
$53.2110.64/mg
Vial size

In stock

✓ 100% purity-match & safe-arrival guarantee

✓ Orders placed before 2:00 PM CT on a business day ship the same day.

✓ Free shipping over $200. One discount per order.

Frequently paired with
  • Great value!
    Make this a kit
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Molecular specification

Molecular formula
C212H350N56O78S
Molecular weight
4963.4 g/mol (Tβ4)
CAS number
885340-08-9
Amino acids
43
Appearance
White lyophilized powder
Purity (HPLC)
99.1%
Elimination half-life
No established human PK

Mechanism & published research

Regulates actin polymerization; studied for cell migration, angiogenesis, and wound repair.

  • Promoted cell migration and repair in preclinical tissue models.

    animal modelrodent cardiac/dermal models·Goldstein et al. (representative)PubMed ↗

Honest note on evidence: Evidence is largely preclinical.

Descriptions summarize existing published research and are not claims about outcomes from use. Every citation states its study type and population.

How it compares

VersusAttributeNote
BPC-157MechanismDifferent pathway; commonly co-studied for recovery.

Reconstitution

Concentration math only: add bacteriostatic water to the vial and the resulting concentration is shown below. This is not usage guidance.

VialBacteriostatic waterConcentration
5 mg2 mL2.5 mg/mL
10 mg2 mL5 mg/mL
Open the reconstitution calculator →

Storage & stability

StateTemperatureDuration
Lyophilized (unopened)-20°C24 months
Reconstituted2–8°Cup to 4 weeks

Reviews

4.8
Based on 421 verified purchases

Reviews are collected post-delivery and screened to exclude any human-use or dosing-outcome claims before publication. They speak to product quality, shipping, and COA accuracy.

Verified
“Dissolved completely with zero cloudiness and the HPLC purity matched the label. Clean documentation.”
@recovery.lab · 2026-06-19
Verified
“Reconstituted cleanly with no cloudiness, and the COA endotoxin pass was included in the PDF.”
@deltaresearch · 2026-05-12
Verified
“Second lot I've ordered and both certificates verified independently. That repeatability is why I stay.”
@s.ibrahim · 2026-03-25
Read more verified reviews →

Product FAQ

Is TB-500 the same as Thymosin β4?+

TB-500 refers to the active fragment; full-length Thymosin β4 is the parent protein. Sequences differ.