Research tool · Free
Peptide reconstitution calculator
Enter your vial strength, the volume of bacteriostatic water you plan to add, and the target research dose per administration. The tool returns the exact volume in millilitres and the mark on a standard insulin syringe.
Result
Draw to
10.0 units
on a 100-unit insulin syringe
Volume per dose
0.100 ml
Concentration
2500 mcg / ml
Doses per vial
≈ 20
For laboratory research use only. This calculator is a convenience aid for reconstitution planning of research-grade peptides. It is not medical advice and Regena peptides are not for human, animal, cosmetic, veterinary, therapeutic or diagnostic use.
How the math works
Step 1 — total mcg: vial mg × 1000. A 5 mg vial holds 5000 mcg of peptide.
Step 2 — concentration: total mcg ÷ ml of bacteriostatic water added. 5000 mcg in 2 ml gives 2500 mcg / ml.
Step 3 — volume per dose: target mcg ÷ mcg per ml. A 250 mcg research dose from a 2500 mcg / ml solution needs 0.1 ml.
Step 4 — syringe units: ml per dose × syringe scale. 0.1 ml on a 100-unit insulin syringe is the 10-unit mark.
Common peptide reconstitutions
Metabolic
Semaglutide
Half-life ~165 h (7 days)
Metabolic
Tirzepatide
Half-life ~120 h (5 days)
Metabolic
Retatrutide
Half-life ~6 days
Metabolic
Liraglutide
Half-life ~13 h
Metabolic
Cagrilintide
Half-life ~7 days
Metabolic
Survodutide
Half-life ~5 days
Growth Hormone
Ipamorelin
Half-life ~2 h
Growth Hormone
CJC-1295 (no DAC)
Half-life ~30 min
Get the peptides your calculation just planned
Every kit ships HPLC-verified ≥99%, with third-party COA in the box.
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