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LL-37: 5 mg vial with 3 mL water
Quick answer
Adding 3 mL of bacteriostatic water to a 5 mg LL-37 vial gives 1.67 mg/mL (1666.7 mcg/mL), so each unit on a U-100 insulin syringe holds 16.7 mcg. A 50 mcg dose is 3 units (0.03 mL), and the vial holds about 100 doses of that size.
Concentration
- Vial: 5 mg LL-37
- Bacteriostatic water: 3 mL (the volume in the Crestigen protocol)
- Concentration: 1.67 mg/mL (1666.7 mcg/mL)
- 1 unit on a U-100 syringe = 16.7 mcg
LL-37 dose to syringe units
| Dose | Syringe units (U-100) | Volume | Doses per vial |
|---|---|---|---|
| 50 mcg (protocol dose) | 3 units | 0.03 mL | 100 |
| 100 mcg (protocol dose) | 6 units | 0.06 mL | 50 |
| 150 mcg (protocol dose) | 9 units | 0.09 mL | 33 |
| 200 mcg (protocol dose) | 12 units | 0.12 mL | 25 |
| 250 mcg | 15 units | 0.15 mL | 20 |
| 300 mcg | 18 units | 0.18 mL | 16 |
| 500 mcg | 30 units | 0.3 mL | 10 |
| 750 mcg | 45 units | 0.45 mL | 6 |
Units on a U-100 insulin syringe (100 units = 1 mL).
Common questions
How many units is 50 mcg of LL-37 from a 5 mg vial with 3 mL water?
50 mcg is 3 units (0.03 mL) on a U-100 insulin syringe. With 3 mL of water in a 5 mg vial, each unit holds 16.7 mcg. For comparison: 100 mcg = 6 units, 150 mcg = 9 units, 200 mcg = 12 units.
What is the concentration of a 5 mg LL-37 vial mixed with 3 mL of water?
5 mg divided by 3 mL is 1.67 mg/mL, or 1666.7 mcg per mL. On a U-100 syringe (100 units = 1 mL) that is 16.7 mcg per unit.
How many 50 mcg doses are in a 5 mg vial?
About 100. The water volume changes how many units each dose takes, not how many doses the vial holds.
How much water should I add to a 5 mg LL-37 vial?
3 mL is the volume used in the Crestigen LL-37 protocol. More water makes each dose a larger, easier-to-measure number of units; less water keeps injections smaller.
Other LL-37 vial and water combinations
- 5 mg vial + 1 mL water
- 5 mg vial + 2 mL water
- 5 mg vial + 3 mL water
Open this in the dosage calculator · Full LL-37 protocol, reconstitution and storage