50 mg vial + 2 mL bacteriostatic water: units chart
A 50 mg vial mixed with 2 mL of bacteriostatic water holds 25,000 mcg per mL. This is a strong mix: each unit holds 250 mcg, so small doses take up only a few units and are harder to measure. More water would spread them out.
Units to draw
1units
Draw 1 units on a U-100 syringe, halfway between the 0- and 2-unit marks.
Warning: At 1 units this dose is hard to measure. Add more water when you mix the vial so the dose fills at least 2 units.
- Dose
- 250 mcg (0.25 mg)
- Volume
- 0.01 mL
- Concentration
- 25,000 mcg/mL (25 mg/mL)
- Per unit
- 250 mcg (0.25 mg)
- Full doses in vial
- 200
Show the math
- Convert the vial amount to mcgmg × 1,000 = mcg50 mg × 1,000 = 50,000 mcg
- Convert the dose to mcgmg × 1,000 = mcg0.25 mg × 1,000 = 250 mcg
- Concentrationvial (mcg) ÷ water (mL) = mcg per mL50,000 mcg ÷ 2 mL = 25,000 mcg/mL (25 mg/mL)
- Volume to drawdose (mcg) ÷ concentration (mcg/mL) = mL250 mcg ÷ 25,000 mcg/mL = 0.01 mL
- Units to drawmL × units per mL = units0.01 mL × 100 units/mL = 1 units
- Amount in each unitmcg per mL ÷ units per mL = mcg per unit25,000 mcg/mL ÷ 100 units/mL = 250 mcg per unit (0.25 mg)
- Doses in the vialvial (mcg) ÷ dose (mcg), rounded down50,000 mcg ÷ 250 mcg = 200 full doses
50 mg peptide with 2 mL bac water: units chart
Units to draw on a 1 mL U-100 syringe for common doses, calculated by this site. With this mix, the chart doses from 500 mcg to 2,000 mcg are easy to read and fit one 1 mL syringe. The 7 smallest doses are under 2 units.
| Dose | Units (U-100) | Volume (mL) |
|---|---|---|
| 50 mcg | 0.2hard to measure | 0.002 |
| 100 mcg | 0.4hard to measure | 0.004 |
| 150 mcg | 0.6hard to measure | 0.006 |
| 200 mcg | 0.8hard to measure | 0.008 |
| 250 mcg | 1hard to measure | 0.01 |
| 300 mcg | 1.2hard to measure | 0.012 |
| 400 mcg | 1.6hard to measure | 0.016 |
| 500 mcg | 2 | 0.02 |
| 600 mcg | 2.4 | 0.024 |
| 750 mcg | 3 | 0.03 |
| 1,000 mcg1 mg | 4 | 0.04 |
| 1,250 mcg1.25 mg | 5 | 0.05 |
| 1,500 mcg1.5 mg | 6 | 0.06 |
| 2,000 mcg2 mg | 8 | 0.08 |
Key numbers for this mix
- Peptide in the vial
- 50,000 mcg
- Concentration
- 25,000 mcg/mL
- Each unit on a U-100 syringe
- 250 mcg
- Each unit on a U-40 syringe
- 625 mcg
- Smallest easy-to-measure dose (2 units)
- 500 mcg
- Most that fits in a 1 mL syringe
- 25,000 mcg
Worked example: 2,000 mcg
- Convert the vial amount to mcg: 50 mg × 1,000 = 50,000 mcg
- Concentration: 50,000 mcg ÷ 2 mL = 25,000 mcg/mL (25 mg/mL)
- Volume to draw: 2,000 mcg ÷ 25,000 mcg/mL = 0.08 mL
- Units to draw: 0.08 mL × 100 units/mL = 8 units
- Amount in each unit: 25,000 mcg/mL ÷ 100 units/mL = 250 mcg per unit (0.25 mg)
- Doses in the vial: 50,000 mcg ÷ 2,000 mcg = 25 full doses
Draw to the 8-unit mark on a U-100 syringe. The same 2,000 mcg dose is 10 units with 2.5 mL of water, compared with 8 units with 2 mL.
Frequently asked questions
What is the concentration of a 50 mg vial with 2 mL of water?
A 50 mg vial mixed with 2 mL of water holds 25,000 mcg per mL. Each unit on a U-100 syringe holds 250 mcg.
How many units is 2,000 mcg with a 50 mg vial and 2 mL of water?
It is 8 units on a U-100 syringe, which is 0.08 mL of the mixed liquid.
What is the smallest dose you can measure well with a 50 mg vial and 2 mL of water?
About 500 mcg, which fills 2 units on a U-100 syringe. Smaller amounts are hard to read; a vial mixed with more water spreads them over more units.
What is the largest dose that fits a 1 mL syringe with a 50 mg vial and 2 mL of water?
25,000 mcg, which fills all 100 units of a 1 mL U-100 syringe. Larger doses need more than one draw or a stronger mix.
How many doses does a 50 mg vial with 2 mL of water give?
Divide 50,000 mcg by your dose and round down: 25 full doses of 2,000 mcg, or 100 of 500 mcg.
Nearby vial and water combinations
See all reconstitution charts, or use the peptide calculator for any other vial, water or dose. For the reasoning behind these numbers, read How Much Bacteriostatic Water to Add to a Vial.