Peptide PilotPeptide Pilot
Download on the App Store

Calculator hub

BPC-157 calculators

Reconstitution, dose, mg ↔ units, and vial duration — all four BPC-157 calculators in one place, pre-filled with a 5 mg / 2 mL example.

Download on the App StoreiPhone · Free to download

BPC-157 reference numbers

Derived from the example vial used to pre-fill the calculators below.

Vial
5 mg
mixed with 2 mL BAC water
Concentration
2.5 mg/mL
2500 mcg/mL
Example dose
0.25 mcg
≈ 10 units on U-100
Doses per vial
20
at 0.25 mcg
Weeks per vial
2.9
at 7× / week

BPC-157 is a peptide people use to speed up recovery from soft-tissue injuries — tendons, ligaments, muscle strains, and gut-lining irritation. In animal studies it consistently accelerated tendon and muscle healing versus saline controls, often by promoting new blood-vessel growth at the injury site. Human clinical data is limited, so most reports are anecdotal. This page covers reconstitution math, typical daily logging cadence, and common mistakes.

How the four BPC-157 calculators connect

This tool turns the three numbers on your BPC-157 vial into the only number that matters at injection time: how many units to draw on a U-100 insulin syringe. The math is one formula — concentration in mg per mL equals the milligrams of peptide in the vial divided by the milliliters of bacteriostatic water you add — and every other answer falls out of that.

In the worked example below, a 5 mg vial of BPC-157 reconstituted with 2 mL of BAC water produces a concentration of 2.5 mg/mL. To draw the example dose of 0.25 mg from that vial you pull 0.10 mL — about 10 units on a standard insulin syringe. Change any input and the rest updates instantly so you can pre-plan a vial before you ever touch a needle.

Vial size, diluent volume, and dose are the three inputs that genuinely change the answer. Doses-per-vial is a derived output — it's the vial mg divided by the dose mg, rounded down. The most common edge case is a tiny dose: at very high concentration, a 0.1 mL draw is only a few units on the syringe, which is hard to read accurately. If your unit count drops below five, consider reconstituting the next vial with more BAC water so each dose covers a larger volume.

What the BPC-157 calculators cover

This hub gathers the four BPC-157 calculators in one place — reconstitution, dose, mg ↔ units, and vial duration — pre-filled with a 5 mg / 2 mL example so the math is concrete the moment the page loads. BPC-157 sits in the Healing category, and the numbers each tool surfaces are tuned to how people actually log this peptide: a daily shot at the 0.25 mcg example dose. A short peptide often logged daily. Calculator inputs use mcg by default because typical example doses sit below 1 mg.

At the example concentration of 2.5 mg/mL, a 0.25 mcg BPC-157 dose draws roughly 10 units on a U-100 insulin syringe — the Dose calculator on the hub shows that working in real time, and the mg ↔ units converter flips it back the other way for people who think in milligrams. The Reconstitution calculator answers the day-one question (how much bacteriostatic water to add and what concentration that gives), and the Vial Duration calculator answers the planning question (how many weeks one vial covers).

For this 5 mg BPC-157 vial, the example numbers imply about 20 doses per vial and roughly 2.9 weeks of coverage at 7 doses per week — that's the math the Vial Duration tool exposes, and it's the number most people use to decide when to reorder. Every calculator on the hub uses these same five inputs (vial mg, diluent mL, dose, doses-per-week, syringe type), so changing your real numbers in one tool gives consistent answers across the others.

How people log BPC-157

Daily subcutaneous injection is the default cadence in most BPC-157 logs, and twice-daily protocols also appear. Doses are small enough that a U-100 insulin syringe is the standard tool.

Cycling — running BPC-157 for a defined number of weeks, then taking a break — is common in personal logs. Recording the start and stop date of each cycle in the log is what makes the timeline auditable later.

Some users inject BPC-157 close to a target area; others prefer rotating standard subcutaneous sites. Either way, recording the injection site in the log is what surfaces site-rotation patterns over time.

A unique consideration when planning a documentation schedule for BPC-157 is the administration route. While subcutaneous injection is common in peptide research, a significant body of preclinical literature on BPC-157 also explores oral administration. This dual-route exploration makes it a critical variable to log for accurate personal tracking. If a protocol involves subcutaneous administration, precise dose calculation is necessary. For example, a 5 mg vial reconstituted with 2 mL of bacteriostatic water yields a concentration of 2,500 mcg/mL. A 250 mcg illustrative dose is 0.1 mL or 10 units on a U-100 syringe. This dose would be logged with a daily cadence, explicitly noting the administration route (e.g., 'Subcutaneous, left thigh') to distinguish it from any potential oral use.

Common BPC-157 mistakes to avoid

  • Typing a milligram value into the calculator with the toggle still set to micrograms — produces a unit count 1000x too high.
  • Forgetting whether the morning dose was already taken on a twice-daily protocol — almost always a logging gap, not a math problem.
  • Reading 250 mcg as 25 units regardless of vial concentration. The unit count depends on diluent volume.
  • Reusing the previous vial's unit count after switching to a new vial reconstituted with a different volume.
  • Letting reconstituted BPC-157 sit at room temperature on travel days when a small cooler would have kept it cold.
  • Not recording the injection site, which makes site-rotation patterns invisible weeks later.
  • Failing to document the administration route, since both oral and subcutaneous methods are explored in research literature, making the route a critical variable.
  • Neglecting to log a detailed site rotation schedule, which makes it difficult to monitor for lipohypertrophy that can be observed with daily injections.
  • Assuming BPC-157 and TB-500 follow the same logging cadence when tracked as a stack, which can lead to inaccurate and conflated records.

Frequently asked questions about BPC-157

Why does the BPC-157 calculator default to micrograms?
Because typical illustrative doses are well below 1 mg, and typing 250 mcg is much less error-prone than typing 0.25 mg. The mg-mcg toggle is still available if the protocol you are following is framed in milligrams.
How is BPC-157 reconstituted?
Add a measured volume of bacteriostatic water through the rubber stopper, then swirl — not shake — until the lyophilized powder fully dissolves. A 5 mg vial with 2 mL of BAC water gives a concentration of 2,500 mcg per mL.
How many units of BPC-157 are in 250 mcg?
On a 5 mg vial reconstituted with 2 mL of bacteriostatic water (2,500 mcg per mL), 250 mcg is exactly 10 units on a U-100 insulin syringe. On a 5 mg vial with 1 mL of BAC water, the same dose is 5 units.
Is BPC-157 dosed daily?
Daily and twice-daily protocols are both common in personal logs. The cadence makes consistent logging especially valuable, because the easiest mistake on a daily peptide is losing track of whether a dose has already been taken.
How long does a 5 mg BPC-157 vial last?
At a 250 mcg daily dose, a 5 mg vial provides 20 doses — about 2.9 weeks of daily supply. The vial duration calculator runs the math for any combination of vial size, dose, and frequency.
Does BPC-157 need to be refrigerated?
Lyophilized powder is typically stored refrigerated, and the reconstituted vial is kept refrigerated and used within several weeks. Writing the reconstitution date on the vial helps prevent using a long-opened vial past its useful life.
Should every injection site be recorded?
Recording the site is what surfaces rotation patterns weeks later. Peptide Pilot includes a site picker for exactly this reason — clicking a body diagram is faster than typing the location and produces cleaner trend data.
What is the structural origin of BPC-157?
BPC-157 is a peptide fragment with the 15-amino-acid sequence Gly-Glu-Pro-Pro-Pro-Gly-Lys-Pro-Ala-Asp-Asp-Ala-Gly-Leu-Val. It is not a naturally occurring peptide on its own, but rather a synthetic copy of a sequence isolated from a larger protein called Body Protection Compound found in human gastric juice. Its unusual structure, particularly its proline-rich core, is studied for its potential role in the peptide's high stability.
Why is the administration route a critical variable to track for BPC-157?
Unlike many peptides that are almost exclusively studied via injection, BPC-157 has been explored in animal research through both subcutaneous and oral administration routes. Because the delivery method is a fundamental variable that influences how a substance is absorbed and distributed, it is a critical data point to log. Tracking whether a dose was administered orally or via injection is essential for maintaining an accurate and auditable personal record over time.
How does tracking a BPC-157 and TB-500 'stack' differ from tracking them individually?
Tracking these two peptides in a stack requires managing two distinct schedules within a single log. Research protocols for BPC-157 often involve a daily administration cadence. In contrast, TB-500 (or its active fragment) is typically documented with a less frequent schedule, such as twice-weekly. A proper log must record each administration event separately, noting the specific peptide, dose, and date to accurately observe any patterns or outcomes without conflating the effects of two different protocols.

Related on Peptide Pilot

Track BPC-157 doses in the app

Peptide Pilot stores your vial once and derives every subsequent dose, draw, and refill reminder from those numbers automatically.

Download on the App StoreiPhone · Free · No credit card
Download on theApp Store→