Informational only. Not medical advice.INFORMATIONAL PLATFORM ONLY — NOT MEDICAL ADVICE, DIAGNOSIS, OR TREATMENT
Calculate exactly how many units to draw on your syringe. Select a peptide, enter your vial and BAC water details, and get instant results.
Draw on your syringe
10
units
(0.100 mL)
10.0% of syringe capacity
Concentration
2,500
mcg/mL
Dose volume
0.100
mL
Doses per vial
20
doses
Cost per dose
---
enter price
Total mcg in vial = 5 mg x 1000 = 5,000 mcg
Concentration = 5,000 mcg / 2 mL = 2,500 mcg/mL
Dose volume = 250 mcg / 2,500 mcg/mL = 0.1000 mL
Units to draw = 0.1000 mL x 100 units/mL = 10 units
Doses per vial = 5,000 mcg / 250 mcg = 20 doses
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Create a free accountDraw your chosen amount of bacteriostatic water into a syringe, then inject it slowly into the peptide vial, aiming the stream against the glass wall — not directly onto the powder. Gently swirl (never shake) until fully dissolved. The resulting concentration depends on how much water you add.
The amount of bacteriostatic water determines your concentration. Common volumes are 1 mL or 2 mL. More water means a lower concentration (more units per dose), which can be easier to measure accurately. Use this calculator to see the exact concentration and units for any water volume.
Units depend on concentration. If you add 2 mL of BAC water to a 5 mg vial, the concentration is 2.5 mg/mL (2,500 mcg/mL). On a U-100 insulin syringe, each unit equals 0.01 mL, so 1 unit = 25 mcg. For a 250 mcg dose, you would draw 10 units.
Both hold the same volume per unit mark (0.01 mL per unit). A U-100 syringe holds up to 1 mL (100 units) and a U-30 holds up to 0.3 mL (30 units). U-30 syringes have larger markings between units, making small doses easier to measure accurately.
Store reconstituted peptides refrigerated at 2-8 degrees Celsius (36-46 degrees Fahrenheit). Most reconstituted peptides remain stable for 4-6 weeks when refrigerated. Never freeze reconstituted peptides, and avoid leaving them at room temperature for extended periods.