Research use only

Repair research

TB 500 Australia: 10mg Research Peptide

TB 500 Australia: TB-500 is not full thymosin beta-4 but a seven amino acid fragment, Ac-LKKTETQ, from its actin binding region. Glow Labs sells it in 10mg freeze-dried vials for lab research. Tracked dispatch runs from Gippsland in regional Victoria, and delivery takes 2-3 days.

Size

$85 AUD per vial, plus $10 tracked shipping per order

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Research use only. Not for human consumption.

No account needed
Tracked, 2-3 days
COA on request

Discreet packaging

Plain outer packaging on every order.

Fast delivery, 2-3 days

Orders leave Traralgon in the afternoon during business hours, then travel tracked to your door.

Certificates on request

Certificates of analysis available on request.

Quality guarantee

If a vial arrives damaged, broken or not what you ordered, message us within 7 days with a photo and we'll replace it free.

What it is

Research overview

What TB-500 is

A 2012 doping control paper describes TB-500 as a veterinary preparation whose key ingredient is the peptide LKKTETQ with an acetyl group added to its start.

That stretch, residues 17 to 23, is the part of thymosin beta-4 linked to actin binding and cell movement. Full thymosin beta-4 has 43 residues and a mass near 4963 g/mol, while TB-500 weighs about 889 g/mol.

Sources: Ho EN et al, J Chromatogr A, 2012. PubChem compound record: TB-500 (CID 62707662), US National Library of Medicine. PubChem compound record: Thymosin beta-4 (timbetasin) (CID 16132341), US National Library of Medicine.

Questions about TB-500?

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What researchers have studied

Much of the science is on the parent protein. A 2012 review of thymosin beta-4 covered its roles in cell migration, blood vessel formation and tissue repair in skin, eye, heart and brain models.

TB-500 itself appears mostly in anti-doping chemistry. The 2012 paper built a method to detect the acetylated peptide and its breakdown products in horse urine and plasma, because of misuse in racing.

Direct, controlled studies of the short fragment are scarce.

Sources: Goldstein AL et al, Thymosin beta 4: a multi-functional regenerative peptide, Basic properties and clinical applications, Expert Opin Biol Ther, 2012. Ho EN et al, J Chromatogr A, 2012.

TB-500 versus thymosin beta-4 on a certificate

The two are easy to tell apart by mass. A TB-500 batch should read near 889 g/mol, while full thymosin beta-4 sits near 4963 g/mol.

Sources: PubChem compound record: TB-500 (CID 62707662), US National Library of Medicine. PubChem compound record: Thymosin beta-4 (timbetasin) (CID 16132341), US National Library of Medicine.

Storing the fragment

Store the powder in a closed vial below -15 °C. Suppliers note colder is better when holding peptide for many months.

Its sequence ends in glutamine, which tends to shorten shelf life once dissolved, so solutions should not be kept long. Keep the vial away from bright light too.

Sources: Bachem, Handling and storage guidelines for peptides, Knowledge Center. JPT Peptide Technologies, How to store peptides: best practices for researchers.

Read the research guide

Specification

Product specs

Name	TB-500
Sizes	10mg
Form	Lyophilised powder
Vial	3 ml glass vial
Cap	Brushed silver-grey
CAS number	885340-08-9
Formula	C₃₈H₆₈N₁₀O₁₄
Molar mass	889.0 g/mol
Sequence	Ac-Leu-Lys-Lys-Thr-Glu-Thr-Gln-OH
Structure	An N-acetylated heptapeptide matching residues 17 to 23 of thymosin beta-4.
Storage	Keep it sealed and frozen with desiccant; peptides tend to take up moisture from the air.
Certificate	On request, how to ask
Status	In stock
Use	Laboratory research only

Sources: PubChem compound record: TB-500 (CID 62707662), US National Library of Medicine. Ho EN et al, J Chromatogr A, 2012. Bachem, Handling and storage guidelines for peptides, Knowledge Center. JPT Peptide Technologies, How to store peptides: best practices for researchers.

Regulatory status

In Australia

TB-500 appears by name in the TGA's examples of unapproved peptide products. Australia's Poisons Standard for October 2026 places it in Schedule 4, the prescription only group, and names it in Appendix D, clause 5. That clause covers poisons that must not be held without authority.

Healthy Male, an Australian men's health body, also explains its unapproved status and warns that calling it research only does not make selling or holding it legal. Our TB-500 is a bench chemical only.

Sources: Therapeutic Goods Administration, Peptide products (topic page). Healthy Male (Andrology Australia), TB-500 in Australia: what you need to know. Therapeutic Goods (Poisons Standard, October 2026) Instrument 2026 (F2026L01327): Schedule 4 entry for TB-500 and Appendix D, clause 5, Federal Register of Legislation, Australian Government.

Testing

COA on request

Certificates of analysis are available on request. Ask us on WhatsApp before or after you order.

How certificates work Ask for the COA

How ordering works

How to order

1
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Add compounds and quantities. No account needed.
2
Send on WhatsApp
One tap writes your whole order into a WhatsApp message.
3
Confirm and ship
We confirm stock and your total, share payment details, then ship tracked.

FAQ

Your questions

How do I tell TB-500 from thymosin beta-4 on a certificate?

Look at the mass on the certificate. TB-500 comes in near 889 g/mol. Full thymosin beta-4 is a 43 residue protein of about 4963 g/mol, more than five times heavier.

Is TB-500 legal in Australia?

No. TB-500 is not approved by the TGA, and the Poisons Standard (October 2026) lists it in Schedule 4 and Appendix D, clause 5, so possessing it without authority is illegal. A research only label does not change that.

What is TB-500 used for in research?

Lab work focuses on the actin binding region of thymosin beta-4, and anti-doping labs study how to detect it.

How should TB-500 be stored?

Sealed, frozen and dry, opened only after warming.

Sources: PubChem compound record: TB-500 (CID 62707662), US National Library of Medicine. PubChem compound record: Thymosin beta-4 (timbetasin) (CID 16132341), US National Library of Medicine. Therapeutic Goods Administration, Peptide products (topic page). Therapeutic Goods (Poisons Standard, October 2026) Instrument 2026 (F2026L01327): Schedule 4 entry for TB-500 and Appendix D, clause 5, Federal Register of Legislation, Australian Government. Healthy Male (Andrology Australia), TB-500 in Australia: what you need to know. Ho EN et al, J Chromatogr A, 2012. Goldstein AL et al, Thymosin beta 4: a multi-functional regenerative peptide, Basic properties and clinical applications, Expert Opin Biol Ther, 2012.