Description
The TB-500 capsules from Umbrella Labs come pre-filled, with the same amount in every capsule. Each batch is tested by LC-MS to 99% purity or higher. It’s $149.99. It’s sold for laboratory research only.
Prefer a different format? We also stock TB-500 peptide vial, TB-500 peptide vial, TB-500 nasal spray and TB-500 nasal spray. See all peptide capsules and tablets for more options in this format.
What is TB-500?
Thymosin beta-4 is a 43-amino-acid protein found in nearly every cell, where it binds actin and helps control cell movement. TB-500 is the name used for synthetic thymosin beta-4 and for a short fragment of its active region.
It’s on the WADA prohibited list and isn’t an approved medicine.
TB-500 capsules specifications
- Compound: TB-500 (TMSB4X, FX, PTMB4)
- CAS number: 77591-33-4
- Molecular formula: C212H350N56O78S
- Molecular weight: 4963.44
- Purity: 99% or higher, tested by LC-MS
- Amount: 60 x 250mcg
- Form: Pre-filled capsules
- Storage: Keep it in the fridge at 2 to 8°C and don’t freeze it
- Use: laboratory research only, not for human or veterinary use
Research on 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 PubMed for the full studies. We stick to what’s been published.
What’s in each TB-500 capsule
Capsules take the weighing out of the job. Every capsule contains the same amount of TB-500, 250mcg, filled and counted before the bottle is sealed.
If you need amounts that don’t match the capsule size, the powder is more flexible, because you can weigh exactly what each sample needs and make up your own solutions or capsules at whatever strength your protocol calls for. Capsules are best for repeat work where the amount doesn’t change. Keep the lid tight, since moisture is the main thing that degrades capsule contents.
Planning a study with TB-500 capsules
Work out how many capsules your study needs before you order. Multiply the number of subjects by the number of administrations per subject, then add a few spare for losses. With 60 capsules in a bottle, that tells you straight away how many bottles to buy.
Keep all the capsules for one study from the same batch where you can. It removes batch-to-batch variation from your results.
Purity testing for TB-500
We test each batch of TB-500 by LC-MS, which pairs liquid chromatography with mass spectrometry. The chromatography splits the sample into its components and the mass spectrometer identifies them, which tells you both identity and purity. This batch came in at 99% or higher.
Small differences between batches are normal, so write the batch number from the label into your records. If something looks wrong when your order arrives, like discoloured powder or a cloudy solution, set it aside and don’t use it.
Storage and handling
Keep it in the fridge at 2 to 8°C and don’t freeze it. Keep the desiccant in the bottle and the lid closed tight. Label anything you decant with the compound, amount and date, and keep it out of reach of children and pets.
Common questions about the TB-500 capsules
How many capsules are in a bottle?
See the amount listed above (60 x 250mcg). Every one is filled to the same amount.
Can I open the capsules?
Yes, if your protocol calls for it. Do it on clean weighing paper so you don’t lose any powder.
Is the TB-500 capsules in stock?
Yes. Every option on this page is in stock and ready to ship.
Related research peptides
Other products in the same range include Sodium hyaluronate powder and capsules, Semaglutide tablets, Orforglipron tablets and Orforglipron capsules. Our main Research Peptides page lists everything in the category.
Buy TB-500 capsules online
It’s simple. Add it to your cart and check out. The TB-500 capsules is in stock and ready to ship. If you’re stocking up, take a look at peptide capsules and tablets too.
Sold for laboratory research use only. It isn’t for human or veterinary use, and it isn’t a food, drug or cosmetic.
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