Axiolabs TB 500 5 mg Thymosin Beta 4 Lyophilized Research Vial

TB 500 is a synthetic fragment of thymosin beta-4, a peptide that occurs naturally in the body and binds actin, the protein that forms much of the cell cytoskeleton. Research interest is in cell migration and the repair of soft tissue such as tendon and muscle. It is a research material, not an approved medicine, and it is a different molecule from BPC 157 even though the two are often ordered together.

Add bacteriostatic water down the side of the vial and swirl it gently rather than shaking. Divide the milligrams on the label by the millilitres you add: a 5 mg vial with 2 mL gives 2.5 mg/mL, so a 2.5 mg research amount is 1 mL. Keep the solution at 2-8 C and do not freeze it, and let the sealed powder reach room temperature before opening.

There is no established human half-life for TB 500, and vendor documentation states the same. Detection work that exists is veterinary: the acetylated metabolite LKKTETQ has been measured in the urine and plasma of horses. With no human figure to work from, any schedule of loading and maintenance amounts is a research reference taken from supplier guidance rather than a measured pharmacokinetic plan.

No validated human safety profile exists for this peptide, so reported effects come from user accounts rather than trials. Injection site reactions such as redness, soreness or swelling, headache and mild malaise are the effects most often described for research peptides. A theoretical concern about cell proliferation means anyone with a cancer history should be cautious, and a known allergy to the peptide or its solvent is a reason not to use it.

Yes. Thymosin beta-4 and its derivatives, with TB-500 named as the example, sit in class S2.3 of the WADA Prohibited List, the growth factor section, and they are prohibited at all times in and out of competition. The listing is explicit about the peptide rather than covering it only as a general category. Anyone subject to testing should treat TB 500 as a banned substance without exception.

The 5 mg vial is listed on this page and the product page shows current availability and price; at the time of writing the vial is out of stock, so check the listing for restocking rather than expecting same day dispatch. Shipping is international at about 45 dollars, with orders handled in one to two business days and transit of four to ten days. Each batch is GMP-manufactured and HPLC-verified with the COA on file.