Blue Sky Peptide TB-500: 2mg or 5mg?
Blue Sky Peptide TB-500 is full-length thymosin beta-4, sold in 2mg and 5mg vials at 99.92% purity. Here is what the peptide is, what the wound healing research found, and which vial suits which study.
What is Blue Sky Peptide TB-500?
TB-500 is the trade name most suppliers use for thymosin beta-4, a 43-amino-acid protein found in nearly every cell. Its main job is to bind actin, the protein that forms the cell’s internal scaffold, which matters when cells need to move into a wound.
The name gets used loosely. Some sellers apply it to a seven-amino-acid fragment (17-23). Blue Sky Peptide TB-500 is the full sequence, and the label also reads Thymosin Beta-4 so there’s no doubt.
Blue Sky Peptide TB-500 sizes and prices
- TB-500 (Thymosin Beta-4) 2mg: $23.37 (list $35.95), about $11.69 per mg
- TB-500 (Thymosin Beta-4) 5mg: $51.97 (list $79.95), about $10.39 per mg
The 2mg vial suits a pilot run or a short protocol, since less peptide sits mixed in the fridge. The 5mg vial costs less per milligram and makes sense once a study is underway. Both tested at the same batch purity.
TB-500 with BPC-157
- BPC-157 TB-500 Blend 2mg/2mg: from $46.12, 99.89% pure
- BPC-157 TB-500 Blend 5mg/5mg: from $95.52, 99.77% pure
- BPC-157 and TB-500 Bundle (5mg x5 Each): $366.57
- GLOW Blend 70mg (GHK-Cu, BPC-157, TB-500): $144.92, 99.83% pure
Researchers often study TB-500 next to BPC-157, since the two act through different routes. The 2mg/2mg and 5mg/5mg blends combine them in one vial on buy two, get one free. The BPC-157 and TB-500 bundle gives you five separate vials of each. Our Blue Sky Peptide BPC-157 guide covers the other half of the pair.
What the thymosin beta-4 research shows
Thymosin beta-4 was first isolated from thymus tissue by Allan Goldstein’s group in the early 1980s. In 1999, Malinda and colleagues reported in the Journal of Investigative Dermatology that it sped up wound closure in rats, with more new blood vessels and more cell migration into the wound. Later work has looked at heart, eye and hair follicle models. Most of it is animal and cell research. Start with this PubMed search for thymosin beta-4.
Which Blue Sky Peptide TB-500 vial to choose
Think about how much you’ll use inside the 28 days after mixing. If a study only needs a few milligrams, the 2mg vial wastes less. If you’ll run through 5mg or more in that window, the 5mg vial saves about $1.30 per milligram, and two 5mg vials still cost less than five 2mg vials. Labs pairing it with BPC-157 often find the blend or the bundle simpler than buying each peptide on its own.
Storing Blue Sky Peptide TB-500
Keep sealed vials in the freezer for long storage, away from light. Reconstitute with a sterile diluent added slowly down the side of the vial. A 5mg vial with 2mL gives 2.5mg/mL. Once mixed, refrigerate and use within about 28 days.
Blue Sky Peptide TB-500 FAQ
Is Blue Sky Peptide TB-500 the full thymosin beta-4?
Yes. Both vials hold the full 43-amino-acid sequence, not the short 17-23 fragment some sellers also call TB-500.
Which vial costs less per milligram?
The 5mg vial, at about $10.39 per mg against $11.69 for the 2mg vial.
Can I buy TB-500 with BPC-157?
Yes. There are two BPC-157 TB-500 blends and a bundle with five vials of each.
Is TB-500 for human use?
No. It’s sold for laboratory research only.
Browse the full healing and recovery peptides range, or see the peptide bundles.
Buy TB-500 (Thymosin Beta-4) 5mg from Blue Sky Peptide
Full-length thymosin beta-4 at 99.92%, in stock in 2mg and 5mg.
Blue Sky Peptide products are sold for laboratory research use only. They aren’t for human or veterinary use and haven’t been evaluated by the FDA.