BPC-157 reconstitution calculator
How many units of a reconstituted bpc-157 vial make up the dose you want — and how much bacteriostatic water to add to land on a round number. Same code as the TherapyLog app, no account needed.
BPC-157 is dosed in micrograms, which flips the usual reconstitution problem. Where a GLP-1 dose can be too large to draw in one syringe, a BPC-157 dose is often too small to measure accurately: at a common reconstitution, 250 mcg is a tenth of a millilitre — ten units — and if you reconstitute the same vial in half the water it becomes five units, which is where syringe graduations start to lose you.
The rule the app applies, and the one worth applying by hand, is that a draw under two units is not reliably measurable on an insulin syringe. If your arithmetic lands there, the fix is more diluent, not a steadier hand.
BPC-157 milligrams to insulin units
Computed for a 5 mg vial reconstituted in 2 ml of bacteriostatic water, which gives 2.50 mg per ml (2,500 mcg/ml), read off a U-100 syringe. The steps are the microgram-scale amounts described in the research literature and community practice (200–500 mcg daily) — they are what the numbers are indexed to, not advice about which one applies to anyone. Change the vial or the water above and every figure moves; the calculator is the authority, this table is the common case.
| BPC-157 dose | Volume to draw | On a U-100 syringe |
|---|---|---|
| 200 mcg | 0.08 ml | 8 units |
| 250 mcg | 0.1 ml | 10 units |
| 500 mcg | 0.2 ml | 20 units |
Why bpc-157 is reconstituted the way it is
BPC-157 is a synthetic pentadecapeptide and a research compound with no approval for human use anywhere; the evidence for it is largely animal work, and the dosing amounts in circulation come from that literature and from community practice rather than from human trials. Its modelled half-life of about four hours is an estimate, which is why the daily and twice-daily schedules people use are frequent by peptide standards.
Reconstituted, it is a peptide in aqueous solution and behaves like one: refrigerated, dark, and used within a few weeks rather than months. Because the doses are so small relative to the vial, a 5 mg vial can outlast its own stability window — which is a reason to reconstitute less water into a smaller working volume, not more.
What the app knows about BPC-157
Generated from the same entry the app's encyclopedia reads, so this page and the app cannot disagree about it.
- Also known as
- Body Protection Compound 157
- Class
- Peptides
- Modelled half-life
- 4 h — estimated half-life, limited human PK data
- Time to peak
- 30 min
- Formulation
- Aqueous (reconstituted powder)
- Regulatory status
- Research compound — no FDA approval. Not for human use label.
- Monitoring panel
- No specific labs required. Monitor injection site. Liver enzymes if long-term.
- Before mixing
- Sealed powder tolerates room temperature in transit, but keep it refrigerated at 2–8 °C (36–46 °F) for anything beyond a few weeks, or frozen for months. Keep it dark — the carton it shipped in is doing a job.
- After mixing
- Once reconstituted with bacteriostatic water: refrigerate at 2–8 °C and use within about 28 days. The benzyl alcohol in bacteriostatic water is what buys that window — plain sterile water has no preservative, so a vial mixed with it should be treated as one sitting only. Kits are usually ten vials: only the one you mixed is on that 28-day clock — the sealed ones keep their own, much longer shelf life, so store them as powder, not as solution.
- What ruins it
- Do not freeze a reconstituted vial. Repeated freeze–thaw is one of the more reliable ways to degrade a peptide.
- Handling caveat
- General handling practice for this formulation. Your supplier’s own insert or COA overrides anything here.
Dosing rows from that entry
Off-label or community practice These are the schedules the entry records, reproduced so you can see what the milligram figures above are indexed to. Which one applies to a particular person is a prescribing decision, and this page does not make it.
| Label | Amount | Route and frequency |
|---|---|---|
| Starting | 200-250mcg/day | Once daily SubQ near injury or orally |
| Therapeutic | 250-500mcg/day | Twice daily AM and PM |
| Gut Protocol | 250mcg orally | Twice daily fasted |
How the math works
volume to draw = dose (mcg) ÷ 2,500 mcg/ml
units (U-100) = volume to draw (ml) × 100
The rules built into the calculator: a practical draw lands on a half-unit and is at least two units; U-100 means a hundred units per millilitre, so 0.1 ml is 10 units on any U-100 syringe regardless of its barrel size; and a draw that exceeds the barrel is flagged rather than silently split across injections.
Questions people ask about bpc-157 reconstitution
How many units is 200 mcg of bpc-157?
At 5 mg in 2 ml — 2,500 mcg/ml — it is 8 units on a U-100 syringe. At any other reconstitution it is a different number, which is why the table above states the vial and the diluent volume it was computed for.
What size vial should I reconstitute?
Whichever one you have — the calculator takes the strength as an input. What the vial size decides is how many doses it holds, and therefore whether it will still be good when you reach the last one: a 5 mg vial holds about 10 of the largest step above, and about 25 of the smallest. A vial holding more doses than its post-mixing window allows is a vial you will be throwing part of away, which is an argument for mixing a smaller working volume rather than a bigger one.
Does bpc-157 accumulate between doses?
Its modelled half-life is 4 h, and that figure is an estimate from limited human data rather than a published value. A rough guide is that levels keep building for about five half-lives before they plateau, so the effect of a dose you take today is partly the effect of the doses before it. The BPC-157 half-life page shows the curve and the steady-state arithmetic.
How long does it keep once mixed?
The entry's handling rule is in the fact box above, along with the caveat that comes with it: your supplier's own insert or certificate of analysis overrides anything generic. As a rule the constraint is the diluent rather than the peptide — bacteriostatic water's preservative is what makes repeated entry reasonable, and it is the reason a mixed vial is a weeks-not-months proposition.
Sold as part of a blend?
BPC-157 is very often sold pre-mixed with TB-500 in one vial — usually five milligrams of each at the low end — under the community nickname the Wolverine blend. If that is what you are holding, this page's arithmetic is only half the story: a draw takes both compounds in the vial's ratio, and a 1:1 vial cannot deliver each at the amounts described for it on its own. The BPC-157 and TB-500 blend calculator works out what a single draw contains of each. BPC-157 also appears in the multi-peptide GLOW and KLOW vials.
Related: BPC-157 half-life and steady state, the generic reconstitution calculator, and the insulin syringe unit converter.
The app stores this vial's strength, its concentration and the date you mixed it, and counts the doses down as you log them.
Save this dose to your logThis calculator does the arithmetic you typed and nothing else. It does not know what is actually in your vial, whether the label is accurate, or anything about you. Confirm the vial strength and the diluent volume on your own label before you draw, and take dosing decisions to a qualified provider.