LL-37 Calculator
LL-37 (also known as Cathelicidin) reconstitution and dosage reference — calculate vial concentration, BAC water volume, and exact syringe units below.
At the reference preset of a 5mg LL-37 vial reconstituted with 2 mL of bacteriostatic water, a 0.1mg dose measures 4 units on a U-100 insulin syringe.
LL-37 is the active C-terminal fragment of the human cathelicidin antimicrobial peptide.
- Concentration
- 2.5 mg/mL
- Draw volume
- 0.04 mL
- Units (U-100)
- 4
- Doses per vial
- ≈ 50
- Reference preset
- 5mg · 2mL · 0.1mg
Reference values from the default preset — adjust the calculator below for your vial.
What is LL-37?
LL-37 is the active C-terminal fragment of the human cathelicidin antimicrobial peptide. It has been investigated in vitro and in early human studies for antimicrobial and immune-modulating activity.
| 5 mg | lyophilized powder |
| 10 mg | lyophilized powder |
| 0.1 mg | ≈ 4 U-100 units (at 5mg / 2mL) |
| 0.2 mg | ≈ 8 U-100 units (at 5mg / 2mL) |
| 0.5 mg | ≈ 20 U-100 units (at 5mg / 2mL) |
How it's typically prepared
Reconstitute with BAC water; refrigerate. LL-37 is light-sensitive — store in a dark area.
Frequently asked questions
- Is LL-37 antimicrobial?
- In vitro studies show broad-spectrum antimicrobial activity. Clinical translation is still limited.
Where researchers source this
Vendors below have been manually vetted for third-party COA practice and shipping reliability. Verify the current Certificate of Analysis on the vendor's product page before purchase.
Other Immune peptides
PeptideDose is an educational reference. It is not medical advice and does not replace consultation with a licensed healthcare provider. Doses shown in presets are derived from published protocols and product labels — they are not personal recommendations.