Thymosin Beta-4 fragment
Reconstitute TB-500, a research peptide that is not FDA-approved, and get the exact units to draw. Enter your vial strength, bacteriostatic water volume, and every-other-day dose for the precise mark on a U-100 insulin syringe.
Draw to
Draw to the 75 unit mark. That is 0.750 mL of solution.
Informational and educational only. Not medical advice. This tool performs math on values you enter and is not a substitute for your prescriber.
Add your chosen volume of bacteriostatic water to the lyophilized vial, directing the stream gently against the glass wall, and swirl slowly (do not shake) until the powder is fully dissolved. The calculator above converts your vial size and water volume into the exact draw volume and syringe units for your target dose. Store the reconstituted peptide refrigerated and use within the period recommended by your supplier.
No clinically established loading or maintenance protocol exists for TB-500 in humans; all publicly referenced schedules originate from informal community sources, not controlled trials. Researchers who work with TB-500 informally describe a loading phase of 2 to 2.5 mg administered once or twice per week for roughly four to six weeks, followed by a lower-frequency maintenance phase of once or twice per month at a similar dose. This calculator performs the math on whatever values you enter; it does not recommend any specific schedule. Consult a licensed clinician before using any research peptide.
BPC-157 and TB-500 are frequently combined by researchers and bodybuilding communities, but no controlled human trial has evaluated a fixed BPC-157 and TB-500 combination, so no evidence-based dose ratio exists. Because the two peptides have separate vial concentrations, each must be calculated independently. Use this calculator for TB-500 and the BPC-157 calculator on DoseGauge for the other compound, entering each compound on its own. Neither compound is FDA-approved, and any use should occur only under appropriate professional oversight.
No on both counts. TB-500 is not approved by the FDA for any indication. It is also prohibited at all times in sport under the WADA Prohibited List (category S2.3 Growth Factors and Related Substances), meaning competitive athletes are subject to sanction if a test returns positive for TB-500 or its metabolites regardless of intent. It remains a research peptide; its long-term safety profile in humans has not been established in peer-reviewed literature.
Source: Xing Y, Ye Y, Zuo H, Li Y. Progress on the Function and Application of Thymosin β4. Front Endocrinol (Lausanne). 2021;12:767785. PMID: 34992578; PMCID: PMC8724243. · How we calculate