TB-500 tracker
for iPhone.
TB-500's reputation rests on its long tissue half-life: a couple of doses per week, often paired with BPC-157, often run in a loading phase before settling into maintenance. The cadence is light, but the bookkeeping isn't — phases change, the stack partner runs daily, the vial maths differ. Peptide Protocol holds the schedule shifts and the calculator together so the tracking doesn't outweigh the dose.
Download Peptide Protocol — FreeTB-500 at a glance
Quick reference for the protocol-builder. TB-500 is a synthetic fragment of Thymosin Beta-4 (TB4); the two are often used interchangeably in practice but have nuance.
| Class | Synthetic peptide fragment of Thymosin Beta-4 (recovery / actin-binding) |
|---|---|
| Brand names | None — research peptide; not FDA-approved for any human indication |
| Plasma half-life | Short systemic (~hours), but tissue-active over days due to actin-binding kinetics |
| Typical cadence | Twice weekly subcutaneous; sometimes once weekly during maintenance |
| Typical dose range | 2.0–2.5 mg per injection in loading; 2 mg every 1–2 weeks in maintenance |
| Common reconstitution | 5 mg vial + 2.5 mL bacteriostatic water → 2 mg/mL → 1.0 mL = 2 mg dose |
| Insulin syringe | U-100 most common (100 units = 1.0 mL = 2 mg at 2 mg/mL); split across two sites is common |
| Common stack pairings | BPC-157 (the canonical recovery stack); occasionally GH-axis peptides during injury rehab |
| Cycle length | 4–6 week loading, then 4–8 weeks maintenance, often cycled off for several weeks |
For mechanism details, animal-model literature, and the loading-vs-maintenance debate, see the TB-500 guide on peptide-calc.app.
Built around TB-500 protocols
Three things twice-weekly recovery protocols actually need.
Phase-aware schedule
Define a loading phase and a maintenance phase with different cadences and doses. The app switches the schedule on a date you set — calendar, reminder, calculator output all update in lockstep.
Volume-friendly calculator
2 mg of TB-500 reconstituted at 2 mg/mL is a full 1 mL — a lot for one site. The calculator shows the unit count and a hint when the volume warrants splitting across two sites in the same session.
Stack-aware Today screen
If you're running TB-500 with BPC-157, the Today screen surfaces both — daily BPC-157 with rotating site, twice-weekly TB-500 with its own. Inventory tracks each vial separately so you know which one to refill first.
What it looks like
TB-500 tracking — common questions
Does Peptide Protocol have a TB-500 preset?
Yes. TB-500 (Thymosin Beta-4) is a calculator preset at common 5 mg and 10 mg vial strengths. Pick your reconstitution (BAC water volume), set the target dose in mg, and the app shows the exact unit count for U-100, U-50, or U-30 insulin syringes — typically 20–25 units on a U-100 for a 2 mg dose.
How does the app handle a TB-500 loading phase?
Build it as two scheduled phases. Loading: 2.0–2.5 mg twice weekly for 4–6 weeks. Maintenance: 2 mg every 1–2 weeks. The protocol-builder lets you switch cadence on a scheduled date, and the app's calendar will reflect the new pattern automatically — no manual re-entry.
Can I run TB-500 and BPC-157 as a healing stack?
Yes. Both peptides are first-class protocols. Run them as a stack: TB-500 twice weekly for systemic recovery, BPC-157 daily for local healing. The Today screen shows everything due across both, the rotation map keeps the sites separate where you want them, and the inventory panel tracks each vial's remaining doses independently.
Related peptide trackers
Track your TB-500 on your iPhone.
Free on the App Store. Builds your first protocol in under five minutes. No account required.
Download on the App StoreNot medical advice. TB-500 is a research peptide. It is not FDA-approved for any human indication and is restricted in many jurisdictions, including under WADA rules in competition. The information on this page is informational and does not constitute a recommendation to use the compound. Always consult a licensed healthcare professional before starting, modifying, or stopping any compound. See the full TB-500 reference for primary sources.