Certified Peptides TB-500: full-length thymosin beta-4
Certified Peptides TB-500 is full-length thymosin beta-4 in a 10mg vial, and it also goes into four blends and two capsule formulas. Here is what it is, what the research found and how to store it.
What is Certified Peptides 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.
Certified Peptides TB-500 products and prices
- TB-500 10mg (Thymosin Beta-4): $70
- BPC-157 TB-500 Blend 10mg/10mg: $110
- BPC-157 TB-500 Cartalax Blend 20mg: $120
- GLOW Blend 70mg (GHK-Cu, BPC-157, TB-500): $112
- KLOW Blend 80mg (GHK-Cu, BPC-157, TB-500, KPV): $158
- BPC-157 TB-500 Capsules 500mcg/500mcg (60 Count): $160
- BPC-157 TB-500 KPV Larazotide Capsules (60 Count): $164
The TB-500 10mg vial is the single-compound format. The BPC-157 TB-500 blend is the usual pairing for repair models, and GLOW and KLOW add GHK-Cu. The BPC-157 TB-500 capsules hold 500mcg of each.
How TB-500 works
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 research
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. For the papers, start with this PubMed search for thymosin beta-4.
How Certified Peptides TB-500 is tested
Every batch is made in the USA and tested by an independent U.S. lab: identity by mass spectrometry, content, and purity by high-performance liquid chromatography (HPLC) to a 99%+ standard, plus endotoxin, heavy metal and sterility screens. On most products the report for the batch in stock is in the photo gallery.
Reconstituting and storing TB-500
Mix with bacteriostatic water, adding it slowly down the glass and rolling the vial until it’s clear. A 10mg vial with 2mL gives 5mg/mL. Keep sealed vials in the freezer, and mixed vials in the fridge for up to about four weeks.
Certified Peptides TB-500 FAQ
Is Certified Peptides TB-500 the full protein?
Yes. Our TB-500 is the full-length 43-amino-acid thymosin beta-4 sequence, acetylated at the N-terminus.
What sizes are there?
A 10mg freeze-dried vial ($70), plus TB-500 in four blends and two capsule formulas.
Can I see the lab report?
Yes. The batch report is in the product page’s photo gallery.
Is TB-500 for human use here?
No. Ours is sold for laboratory research only.
Related reading: the Certified Peptides BPC-157 guide and our healing and recovery peptides.
Buy TB-500 10mg (Thymosin Beta-4) from Certified Peptides
Made in the USA, lab tested and in stock.
Certified Peptides products are sold for laboratory research use only. They aren’t for human or veterinary use and haven’t been evaluated by the FDA.