Reconstitution & Dose Calculator
Enter your vial, your diluent and your target research dose. We return the exact U-100 syringe mark, how many doses the vial holds, how long it lasts and what each dose costs.
Compound
Results
Draw to this mark
10
units (U-100)
2.5 mg/mL
0.1 mL
20
20 days
Smart diluent
Suggests the amount of bacteriostatic water that makes your dose land exactly on a round, easy-to-read syringe mark.
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Turn this calculation into a scheduled protocol with a weekly calendar, dose reminders and adherence tracking.
Step-by-step reconstitution guide
Follow each step in order. Reconstitution turns lyophilised (freeze-dried) powder into a solution you can measure accurately.
For the values above
Add 2 mL of bacteriostatic water to your 5 mg vial → a 2.5 mg/mL solution.
Bring to room temperature
Let the sealed vial and the bacteriostatic water sit until they reach room temperature. Cold glass and cold diluent make the powder harder to dissolve.
Sanitise every surface
Swab the rubber septum of both the peptide vial and the bacteriostatic water vial with a fresh alcohol wipe and let them dry. Work on a clean surface and never touch the needle to anything else.
Draw the diluent
Using a sterile syringe, draw exactly 2 mL of bacteriostatic water. Bacteriostatic water contains 0.9% benzyl alcohol, which lets you take multiple draws from one vial.
Inject down the wall
Insert the needle at an angle and let the water run slowly down the inside wall of the vial — never blast it directly onto the powder. Fast, direct streams damage the peptide.
Swirl, never shake
Gently roll or swirl the vial until the solution is completely clear. Shaking creates foam and shears the peptide bonds. If it does not clear, wait a few minutes and swirl again.
Store correctly
Keep the reconstituted vial refrigerated at 2–8°C, protected from light. Reconstituted peptides are generally considered stable for about 28 days; label the vial with the date you mixed it.
Good practice
- •Rotate injection sites to reduce irritation at any single spot.
- •Never re-use a needle — use a fresh sterile needle for every draw.
- •If the solution ever looks cloudy, discoloured or has particles, discard it.
For laboratory research use only. This guide is general handling information for reconstituting lyophilised material. It is not medical advice, not a prescription, and not a recommendation for human use.