LL-37 peptide calculator
Pre-filled LL-37 dosage and reconstitution math: a 5 mg vial, 2 ml of bacteriostatic water, and the resulting U-100 insulin-syringe units. Adjust the inputs below or open the full calculator.
How to reconstitute LL-37
- Wipe both vial stoppers with a fresh alcohol swab and let them dry.
- Draw 2 ml of bacteriostatic water into a syringe.
- Insert the needle at an angle into the LL-37 vial and let the water run slowly down the inner wall — do not inject directly onto the powder.
- Do not shake. Gently swirl the vial until the peptide fully dissolves.
- Store the reconstituted vial refrigerated (2–8 °C / 36–46 °F) and use within roughly 28 days.
- Draw each dose to the unit mark shown above for your target 1000 mcg dose.
About LL-37
LL-37 is the active C-terminal fragment of the human cathelicidin hCAP-18. It has broad-spectrum antimicrobial activity and immunomodulatory effects, and is studied in wound healing, chronic infection, and immune-dysfunction research.
Half-life: Approximately 1–2 hours (plasma)
Typical dose range: 1–5 mg per injection (research protocols vary)
Class: Cationic antimicrobial peptide
LL-37 calculator FAQ
Is this a LL-37 peptide calculator or a reconstitution calculator?
Both. This LL-37 calculator converts vial strength, bacteriostatic-water volume, and target dose into milliliters and insulin-syringe units. It does not recommend a medical dose.
How much bacteriostatic water for a 5 mg LL-37 vial?
This page is pre-filled with 2 ml of bacteriostatic water for a 5 mg LL-37 vial because that is a common research ratio. You can adjust the water amount in the full calculator.
How many units is a 1000 mcg LL-37 dose?
With the default 5 mg vial and 2 ml BAC-water ratio, the preview above calculates the U-100 syringe units for a 1000 mcg dose. Change the dose if your protocol uses a different amount.
Does this LL-37 dosage calculator give medical advice?
No. It only performs unit math. Dosing, titration, and whether LL-37 is appropriate are clinical decisions that should be made with a licensed healthcare professional.
Skip the math — let the app handle it
Peptide Protocol pre-fills reconstitution, tracks every dose, and flags rotations automatically.
See the app →Educational use only. Peptide Protocol is an informational tool. Nothing on this page constitutes medical advice. Many peptides are prescription-only or restricted in your jurisdiction. Always consult a licensed healthcare professional before injecting any compound.