Mixing 12 mg P021
Adding 2 mL of bacteriostatic water to a 12 mg vial of P021 gives 6 mg/mL: each 10 units on a U-100 insulin syringe holds 600 mcg. With 1 mL it's 12 mg/mL (1,200 mcg per 10 units); with 3 mL, 4 mg/mL (400 mcg per 10 units). More water makes small amounts easier to measure.
Bacteriostatic water chart for a 12 mg vial
Strength for each amount of water, and how much P021 10 units and 1 unit hold on a U-100 insulin syringe (100 units = 1 mL).
| Water added | Strength | Per 10 units (0.1 mL) | Per unit |
|---|---|---|---|
| 0.5 mL | 24 mg/mL | 2,400 mcg | 240 mcg |
| 1 mL | 12 mg/mL | 1,200 mcg | 120 mcg |
| 1.5 mL | 8 mg/mL | 800 mcg | 80 mcg |
| 2 mL | 6 mg/mL | 600 mcg | 60 mcg |
| 2.5 mL | 4.8 mg/mL | 480 mcg | 48 mcg |
| 3 mL | 4 mg/mL | 400 mcg | 40 mcg |
| 4 mL | 3 mg/mL | 300 mcg | 30 mcg |
| 5 mL | 2.4 mg/mL | 240 mcg | 24 mcg |
Units to draw for an amount (with 2 mL of water)
Arithmetic only, not a recommended amount. For what published studies actually gave, see P021 research. Use the calculator for other amounts or water volumes.
| Amount | Units | Volume |
|---|---|---|
| 100 mcg (0.1 mg) | 1.7 units | 0.017 mL |
| 250 mcg (0.25 mg) | 4.2 units | 0.042 mL |
| 500 mcg (0.5 mg) | 8.3 units | 0.083 mL |
| 1,000 mcg (1 mg) | 16.7 units | 0.167 mL |
| 2,000 mcg (2 mg) | 33.3 units | 0.333 mL |
| 2,500 mcg (2.5 mg) | 41.7 units | 0.417 mL |
| 5,000 mcg (5 mg) | 83.3 units | 0.833 mL |
Cheapest 12 mg P021 vials
One listing per vendor, vendors scoring 80%+ on Finnrick's independent lab testing, cheapest per mg first. Some links are affiliate links; rankings are by price only.
| Vendor | Listing | Price | Per mg | |
|---|---|---|---|---|
| Evolve BioPep Finnrick 66% | P21 12mg 1 × 12 mg | $69.99 | $5.83 | Buy |
| Atomik Labz Finnrick 69% | P-21 12mg Ten Pack 10 × 12 mg = 120 mg | $1,071.00 | $8.93 | Buy |
Questions people ask
How much bacteriostatic water do I add to 12 mg of P021?
Adding 2 mL of bacteriostatic water to a 12 mg vial of P021 gives 6 mg/mL: each 10 units on a U-100 insulin syringe holds 600 mcg. With 1 mL it's 12 mg/mL (1,200 mcg per 10 units); with 3 mL, 4 mg/mL (400 mcg per 10 units). More water makes small amounts easier to measure.
How many units is 100 mcg of P021 from a 12 mg vial?
With 2 mL of water (6 mg/mL), 100 mcg is 1.7 units on a U-100 syringe; with 1 mL it's 0.8 units.
Where can I buy 12 mg P021 vials?
2 independently tested vendors list 12 mg P021 vials; the cheapest right now is Evolve BioPep at $5.83 per mg ($69.99 for 1 × 12 mg).