Name: TB500 (Thymosin B4 Acetate)
Brand: Lilipeptide
SKU: LILI-tb500-thymosin-b4-acetate
Availability: OutOfStock

What is TB-500?

TB-500 reproduces the sequence of Thymosin Beta-4, a 43-amino-acid peptide found in nearly all human and animal cell types and present at particularly high concentration in platelets and wound fluid. Its natural abundance at injury sites is part of what drew early research interest toward its role in tissue repair.

This listing is TB-500 from Lilipeptide (China), sold on Stairway to Gray with escrow: your payment is held until the order arrives and only then released to the brand.

How it is understood to work

Thymosin Beta-4’s core activity is binding and sequestering monomeric G-actin, a function that regulates actin filament assembly and, by extension, the machinery cells use to migrate. In study models this has been linked to promoting angiogenesis, keratinocyte and endothelial cell migration, reduced local inflammation, and decreased fibrosis during tissue repair.

Research status

TB-500 is studied across wound-healing models, muscle and tendon-repair research, cardiac tissue injury, corneal repair and hair-follicle regeneration, spanning cell-culture and animal-model systems. It remains an investigational research peptide; it has not been approved as a human or veterinary therapeutic.

This listing: Lilipeptide TB-500

Brand: Lilipeptide
Also sold by: Vital Edge Science TB-500 $77.00 · Maxed Out Compounds TB-500 $240.00 · TFC Peptides 10mg $125.00 · TFC Peptides 20mg $180.00 · TFC Peptides 5mg $65.00 · Peptide Express 10mg $66.00

Lab testing

There is no public lab report for this listing yet. We can ask the brand for the batch COA before you order. Many buyers also split an independent HPLC test with others who bought the same batch.

Request the batch COA · How group testing works

Bought through escrow: the brand is only paid after you confirm delivery. If the parcel never arrives, or an independent test shows the wrong compound or a significant under-fill, open a claim before releasing payment.

Specifications

Compound: TB-500
Also known as: Thymosin Beta-4, T-beta-4, Tb4
Class: Synthetic peptide analogue of Thymosin Beta-4
Form: Lyophilized (freeze-dried) powder
Molecular formula: C₂₁₂H₃₅₀N₅₆O₇₈S
Molecular weight: 4963.44 g/mol
Brand: Lilipeptide · China

Handling & storage

Supplied as a lyophilized powder; store unopened vials frozen and protected from light, and once reconstituted with bacteriostatic water, keep refrigerated and use within the timeframe appropriate to your study.

Questions

Is TB-500 identical to naturally occurring Thymosin Beta-4?

Yes, TB-500 is manufactured to match the same 43-amino-acid sequence as endogenous Thymosin Beta-4, rather than being a modified analogue, which is why the two names are often used interchangeably in the literature.

Why is TB-500 studied in such a wide range of tissue types?

Because its core mechanism, actin regulation, underlies basic cell migration rather than one tissue-specific pathway, researchers have examined it across skin, muscle, tendon, cornea and cardiac tissue models rather than a single organ system.

For laboratory research use only. Not for human or veterinary use. Nothing on this page is medical advice.