CoA for every batch ≥99% Purity Guaranteed Sterility Tested Same-Day Dispatch before 2 PM EST Free U.S. Shipping over $250
dōse.one
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CATALOG / Tissue & Dermal / TB-500
Representative packaging · lot label varies by batch
Tissue & Dermal Research Compound

TB-500

Thymosin β4 fragment≥99% HPLC LOT-TRACEABLE COA

A synthetic research peptide (Thymosin β4 fragment), supplied lyophilized for laboratory research use. Third-party tested with a lot-specific Certificate of Analysis.

BUNDLE & SAVE
1 vial
MOST POPULAR
3 vials
5% off
BEST VALUE
5 vials
10% off
1
+
Estimated delivery
Free shipment protection
Overnight shipping available
≥99%
HPLC purity, every lot
ISO 17025
Accredited third-party lab
7-point
QC panel incl. sterility & endotoxin
2 PM EST
Same-day dispatch cutoff
MOLECULAR PROFILE
TypeSynthetic peptide
CAS number77591-33-4
STORAGE & HANDLING
FormLyophilized powder
Lyophilized−20°C · 24+ months
Reconstituted2–8°C · ~30 days
Protect fromLight, heat
SHIPPING & HANDLING
Same-day dispatch — orders before 2 PM EST, Mon–Fri.
Stable in transit — lyophilized peptides tolerate ambient temperature; no cold chain required.
2–5 business days — tracked carrier delivery, free over $250.
On arrival — store at −20°C until use.

Frequently asked questions

General answers about shipping, storage, handling, and eligibility. For ordering and account questions, see the full FAQ.

How is this shipped, and does it need to stay cold?

No cold chain required. Lyophilized peptides are stable at ambient temperature and tolerate transit without refrigeration. Orders ship in protective packaging via tracked carrier.

How long does shipping take?

Orders placed before 2 PM EST (Mon–Fri) dispatch the same day. Delivery is typically 2 to 5 business days via tracked carrier, with overnight available at checkout. Free shipping on U.S. orders over $250.

How should I store it?

Store the lyophilized vial at -20°C, where it remains stable for 24+ months. Once reconstituted, store at 2 to 8°C, stable for 1 to 3 months depending on conditions. Protect from light and heat.

What’s in the vial?

A single lyophilized research compound, sealed under a crimp cap. Each vial is third-party tested with a lot-specific Certificate of Analysis, viewable on this page.

What does “Research Use Only” mean?

All dōse.one compounds are supplied strictly for laboratory and research purposes. They are not for human or animal consumption.

Published literature

Peer-reviewed research relevant to this compound. For research reference only — not product claims.

01
Thymosin β4: a multi-functional regenerative peptide. Basic properties and clinical applications · Goldstein et al.
Expert Opinion on Biological Therapy · 2012
02
A randomized, placebo-controlled, single and multiple dose study of intravenous thymosin beta4 in healthy volunteers · Ruff et al.
Annals of the New York Academy of Sciences · 2010
03
A dose-response study of thymosin β4 for the treatment of acute stroke · Morris et al.
Journal of the Neurological Sciences · 2014
⚠ Important research notice

Not for human consumption. This product is sold exclusively for laboratory and research use. It is not intended to diagnose, treat, cure, or prevent any disease, and is not for human or veterinary use. By purchasing, you confirm that you are a qualified researcher or institution and will handle this product in accordance with all applicable laws and regulations.

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