Reconstitution chart: 5 mg vial
| BAC water added | Concentration | Draw for 2 mg dose | Draw for 2.5 mg dose |
|---|---|---|---|
| 1 mL | 5,000 mcg/mL | 40 units | 50 units |
| 1.5 mL | 3,333 mcg/mL | 60 units | 75 units |
| 2 mL | 2,500 mcg/mL | 80 units | 100 units |
Draws are U-100 insulin syringe units (100 units = 1 mL). Formula: dose in mcg ÷ (vial mcg ÷ water mL) × 100. The calculator above handles any other combination.
About TB-500
TB-500 is a synthetic fragment of thymosin beta-4, a protein present in nearly all human and animal cells that plays a role in cell migration and tissue repair. It has no regulatory approval anywhere, and it is on the World Anti-Doping Agency prohibited list, so tested athletes should treat it as a guaranteed violation. The research base is largely animal and laboratory work.
Unlike most peptides on this site, TB-500 is discussed in whole milligrams. Community protocols typically describe a loading phase of 2 to 2.5 mg twice weekly for several weeks, then a lower maintenance frequency. At those doses a 5 mg vial holds only two injections, so supply math matters: the doses-per-vial box in the result tells you exactly how many draws a vial gives you at your dose.
Milligram doses also mean bigger draws. From a 5 mg vial with 1 mL of water, a 2.5 mg dose is a 50 unit draw, half of a 1 mL syringe. Add 2 mL and the same dose becomes a full 100 units. If the calculator warns that your dose exceeds the syringe, use less water or a bigger syringe rather than splitting a draw by eye.
Quick facts
- Status: no regulatory approval; on the WADA prohibited list for athletes
- Discussed in communities at 2 to 2.5 mg per injection, loading then maintenance
- Common vial sizes: 5 and 10 mg
- Often discussed alongside BPC-157 (the so-called Wolverine combination)
Stop gambling on where you buy your peptides.
The calculator tells you how much to draw. The Verified Buyer's Manual tells you how to source the peptide itself without getting scammed or shipped underdosed product. Trace any compound back to the lab that made it, read a Certificate of Analysis and catch a fake, grade any seller before you pay, and price it right. A repeatable system, not a list of names that goes stale.
- How to read a lab report (COA) and spot a faked or misattributed one
- Source tracing: find verified sellers yourself from public test data
- The vetting grid: a yes-or-no scorecard for any seller
- Real cost-per-mg math so you never overpay
- Reconstitution, storage, and the first 72 hours after a package lands
Supplies you will need
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