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    • How-to guides

    How many units to draw?

    Vial strength + BAC water volume + desired dose → exact units on a U-100 insulin syringe. Math runs locally - nothing leaves your browser.

    Start from a peptide

    Pick a catalogue peptide to autofill vial size, BAC water, and starting dose defaults. Every value below stays editable.

    Inputs

    All three are U-100 scale insulin syringes (100 units = 1 ml). Smaller barrels carry finer marks, so small draws are easier to read.

    Enter the diluent volume specified for the exact product or research protocol. Presets are neutral shortcuts.

    Quick-pick values are unit-conversion shortcuts only, not dose recommendations.

    Result

    Draw - editable

    ≈ - ml on a 1 mL (100-unit) syringe · dose - mcg

    U-100 units represent liquid volume, not compound International Units. Edit units to reverse-solve the target amount.

    What if I add more BAC water?

    Reference visualization of your inputs

    Reference schedule

    Reference information only — reproduced from published sources for supply and measurement context. It is not a dose recommendation and does not change your live protocol. Tap a step to preview that draw volume above.

    How peptide reconstitution math works

    Reconstitution is the process of dissolving a lyophilised (freeze-dried) peptide in bacteriostatic water so it can be drawn into an insulin syringe. The math is deterministic:

  • Concentration (mg/ml) = vial peptide mass (mg) ÷ BAC water added (ml).
  • Volume per dose (ml) = desired dose (mg) ÷ concentration (mg/ml).
  • U-100 syringe units = volume per dose (ml) × 100. (U-100 syringes mark 1 ml = 100 units, so 0.01 ml = 1 unit.)
  • Doses per vial = vial peptide mass (mg) ÷ desired dose (mg).

    • Worked example - a 5 mg vial, 2 ml BAC water, 0.25 mg per draw:

  • Concentration = 5 ÷ 2 = 2.5 mg/ml
  • Volume per draw = 0.25 ÷ 2.5 = 0.10 ml
  • U-100 units = 0.10 × 100 = 10 units
  • Draws per vial = 5 ÷ 0.25 = 20 draws

    • PRECISION. PURITY. PERFORMANCE.

    Research peptides at >99% HPLC-verified purity, third-party tested by Janoshik Analytical & Freedom Diagnostics, with Certificates of Analysis published per released batch. Supplied strictly for laboratory research use.

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