Dosage Calculator
Enter your vial size, the bacteriostatic water you'll add, and the dose you want. The syringe below updates in real time with a clear arrow showing exactly where to pull the plunger.
These presets are intentionally conservative. They start on the safer side so you can assess tolerance first. Some experienced users run higher doses for faster results, but that also raises the chance of side effects. Start low, go slow, and adjust with guidance from a qualified professional.
Total milligrams printed on the vial label.
More water = more diluted (you draw more units). Less water = stronger concentration (you draw fewer units).
Per single injection. = 0.25 mg| 1 mg = 1,000 mcg
Concentration is set by the powder amount divided by the BAC water volume. After that, every dose is a fraction of the liquid. More water dilutes the vial, so you pull more units for the same amount of peptide; less water makes it stronger, so you pull fewer units.
Pick the insulin syringe you actually have. The diagram below scales to match.
- 1. Vial powder = 10 mg × 1,000 = 10,000 mcg
- 2. Concentration = 10,000 mcg ÷ 2 mL = 5000.0 mcg/mL (or 5.000 mg/mL)
- 3. Dose = 250 mcg (your entered target dose)
- 4. Volume to draw = 250 mcg ÷ 5000.0 mcg/mL = 0.050 mL
- 5. Syringe units = 0.050 mL × 100 = 5 units
Changing the BAC water volume changes the concentration in step 2 — that is why the same mcg dose produces a different unit reading on the syringe.
On a 100-unit (1 mL) insulin syringe, every 10 units = 0.1 mL. Pull the plunger back until the rubber tip lines up with 5 on the barrel.
Peptide
- Vial size
- 10 mg
- BAC water
- 2 mL
- Target dose
- 250 mcg
- Syringe fill
- 5.0 u (0.05 mL)
Peptide: 10 mg vial + 2 mL BAC water = 5.00 mg/mL. 250 mcg dose = draw 5.0 units (0.05 mL) on a 100u syringe.
Shared links reopen the calculator with these values and show this summary in the link preview. Educational reference only, not medical advice.
Save your exact vial, water and dose combo, then switch between them any time. Stored only on this device.
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Reconstitution walkthrough
Every step below uses the numbers you entered above.
- 1Wipe both stoppers
Swab the rubber tops of the 10 mg peptide vial and the bacteriostatic water vial with fresh alcohol pads. Let them air dry for a few seconds.
- 2Draw 2 mL of BAC water
Pull 2 mL of bacteriostatic water into a reconstitution syringe (usually a 3 mL syringe with a 21g needle).
- 3Add water slowly, down the side
Inject the water against the inside wall of the vial, don't blast it directly onto the powder. This protects the peptide from shear damage.
- 4Swirl, don't shake
Gently swirl until the powder is fully dissolved and the liquid is clear. Never shake, foaming denatures the peptide.
- 5Draw 5 units on a 1 mL syringe
On your 100-unit (1 mL) insulin syringe, pull the plunger back until the rubber tip lines up with 5, that's your 250 mcg dose. Tap out any air bubbles, then inject as directed.
- 6Store refrigerated
Cap the vial and store at 2–8 °C (36–46 °F). Most reconstituted peptides remain stable for 3–4 weeks refrigerated.
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