TB-500 (Thymosin Beta-4) 10mg

TB-500 10mg from Biotech Peptides is a thymosin beta-4 peptide, sold in a 10mg vial of freeze-dried powder. You pay $124 and shipping costs nothing, whether the order goes across the US or overseas. Our label says it plainly: synthesized and lyophilized in the USA. The gallery above includes the certificate of analysis for the current lot.

What is TB-500?

TB-500 here means thymosin beta-4, a 43-amino-acid protein found in nearly every cell in the body, with high levels in platelets and white blood cells. Inside the cell it binds actin, the protein cells use to change shape and move.

The TB-500 we sell is the full-length 43-residue sequence, acetylated at the N-terminus like the natural protein. It isn’t an approved medicine, and it’s on the WADA prohibited list.

What studies report about TB-500

Goldstein and colleagues reviewed thymosin beta-4’s role in wound repair in 2012, covering faster closure of skin wounds and new blood vessel growth in animal models.

Bock-Marquette and colleagues reported in Nature (2004) that thymosin beta-4 improved heart cell survival after injury in mice.

Search the original papers yourself on PubMed.

The biology behind TB-500

Thymosin beta-4’s main job is holding on to G-actin, the single building blocks of the cell’s internal scaffolding. By controlling how much actin is free to polymerize, it controls how cells move and change shape.

Cell movement is the first step in repair, which is the link to the wound healing and blood vessel studies. The actin-binding work is done by a short stretch of the chain, LKKTETQ, at positions 17 to 23.

TB-500 10mg at a glance: the specs

• Compound: TB-500 (thymosin beta-4)
• Other names: thymosin beta-4, Tβ4
• CAS number: 77591-33-4
• Molecular formula: C212H350N56O78S
• Molecular weight: 4,963.4 g/mol
• Sequence or structure: 43 amino acids (thymosin beta-4)
• Amount: 10mg
• Form: lyophilized (freeze-dried) powder
• Made: synthesized and lyophilized in the USA
• Lot paperwork: COA, HPLC and MS images in the gallery
• SKU: TB-500-10mg

TB-500 10mg COA and lab reports

Three documents sit in the image gallery. The certificate of analysis lists the lot number, sequence, storage temperature and the test results. The HPLC chromatogram is the purity test, and the mass spectrum confirms the molecular weight.

Want a copy for your records? Contact us with your order number and we’ll send the file.

TB-500 10mg reconstitution and storage

The concentration is the 10mg in the vial divided by the water you add:

• 1mL of water: 10mg per mL
• 2mL of water: 5mg per mL
• 3mL of water: 3.33mg per mL

Bring the vial to room temperature, add sterile bacteriostatic water against the glass and swirl gently. It should go clear within a minute or two. Shaking only makes foam.

Dry vials last longest frozen at -20°C. Reconstituted solution goes in the fridge and is best used within four weeks or so.

How many vials of TB-500 10mg to order

Count the total milligrams across every group and time point, and round up. Running out halfway and switching lots adds a variable you didn’t plan for.

TB-500 options in stock

• TB-500 (Thymosin Beta-4) 5mg: $72, $14.40 per mg
• TB-500 (Thymosin Beta-4) 10mg (this page): $124, $12.40 per mg

Same compound, different amounts. The bigger listing works out cheaper per milligram.

Where TB-500 fits

TB-500 is the 43-amino-acid actin-binding protein, studied for cell movement and wound repair. The compounds it’s usually weighed against:

• BPC-157 is the 15-amino-acid repair peptide with the largest body of rodent research
• KPV is a three-amino-acid alpha-MSH fragment studied for calming inflammation
• ARA-290 is an 11-amino-acid peptide from erythropoietin that protects tissue without raising red cells
• B7-33 is a relaxin-2 fragment studied for fibrosis
• GHK-Cu is the copper-binding tripeptide studied for collagen and skin repair

Each covers a different step of repair, from new blood vessels and cell movement to inflammation, fibrosis and matrix rebuilding. All of them are on our BPC-157 and recovery peptides page.

Shop more like TB-500 10mg

• PTD-DBM 5mg, a cell-penetrating peptide
• BPC-157 TB-500 Blend 10mg, with BPC-157 and TB-500 in one vial
• BPC-157 TB-500 GHK-Cu Blend 70mg, with BPC-157, TB-500 and GHK-Cu in one vial
• GHK-Cu 50mg (Copper Peptide), a copper peptide

The full range is on the research peptides page. For this research area, go to BPC-157 and recovery peptides.

Buying TB-500 10mg from Biotech Peptides

Biotech Peptides is a peptide-only store. You see the price up front, there’s no account required to check out, and if a product page lists a COA, the document is right there in the images. You don’t have to ask for it.

Problems with an order go through the contact page. Include the order number and a photo of anything damaged.

Shipping TB-500 10mg worldwide

Every order ships free, domestic or international. Dry peptide is stable at room temperature for the length of a normal delivery, so there’s no ice pack surcharge. Freeze it once it lands.

Every product is listed in our shop, and the Biotech Peptides Shop home page links to the blog’s country-by-country delivery guides.

TB-500 10mg questions and answers

How much does shipping cost?

Nothing. Shipping is free on every order worldwide.

What do I reconstitute TB-500 10mg with?

Sterile bacteriostatic water. The mixing section above lists concentrations for common volumes.

How should TB-500 10mg be stored?

Frozen at -20°C while dry. After mixing, in the fridge at 2 to 8°C, used within about four weeks.

Does TB-500 10mg come with a COA?

Yes. The certificate of analysis, HPLC trace and mass spectrum for the lot are in the product images.

Is TB-500 10mg in stock?

Yes, it’s in stock today.

Order TB-500 10mg from Biotech Peptides

Get TB-500 10mg for $124. It’s in stock, shipping is free, and the cart button is right above.

Add other compounds from our BPC-157 and recovery peptides to the same parcel.

For laboratory research only. Not for human or veterinary use, and not evaluated by the FDA.