RESEARCH TOOL
Reconstitution calculator
Bacteriostatic water volume to hit your target concentration. Includes per-tick math for a U-100 insulin syringe so you can verify against your lab notebook. RUO context only.
Printed on your vial label.
Common: 1, 2, 5, 10 mg/mL.
Result
Add 2.50 mL bacteriostatic water
Yields 2.0 mg/mL, total volume 2.50 mL.
U-100 insulin syringe tick math
A U-100 syringe is graduated 0–100 "units" where 100 units = 1 mL. After reconstitution, each tick on the syringe contains:
0.020 mg of peptide per single tick
For RUO measurement only. Not a dosing tool.
Best practices
- • Use bacteriostatic water (0.9% benzyl alcohol) for any peptide stored > 24 hours after reconstitution.
- • Inject water slowly down the side of the vial — do not blast directly onto lyophilized powder.
- • Swirl gently. Do not shake. Vortexing can shear larger peptides.
- • Once reconstituted, store at 2–8°C and use within 30 days.
- • Light-sensitive peptides (e.g., GHK-Cu) belong in amber vials away from direct light.
- • Always confirm peptide molecular weight before assay design — some COAs report net weight, others gross.
For Research Use Only. This calculator returns a volume-and-concentration arithmetic result; it is not a dosing recommendation. X Factor Peptides products are not intended for human consumption.