Free research tool
Peptide reconstitution calculator
Clicks per dose, doses per pen, days of supply and cost per dose for pre-loaded pens — or concentration and syringe units if you are reconstituting a vial. Enter your own numbers; the calculator does the arithmetic and never recommends a dose.
Your numbers
Pick a pen to load its published specs, or enter your own.
Result
A calculation tool only — it converts the values you enter and does not recommend a dose, frequency or protocol. Research and laboratory use only.
How reconstitution maths works
Lyophilised peptides are supplied as a dry powder measured in milligrams. Adding bacteriostatic water sets the concentration: concentration (mcg/ml) = peptide (mg) × 1000 ÷ water (ml). The volume you draw for a given dose is then dose (mcg) ÷ concentration (mcg/ml). On a U-100 insulin syringe, multiply the ml figure by 100 to get units.
Example: a 10 mg vial reconstituted with 2 ml gives 5,000 mcg/ml. A 250 mcg research dose is 0.05 ml — 5 units on a U-100 syringe.
For published stability data on storage after reconstitution, see our peptide storage and stability research guide.
Skip the maths with pre-mixed pens
RegenMed pens come pre-mixed at verified concentrations with dial-dose measurement — third-party tested, for laboratory research use.
Frequently asked questions
How do I use a peptide calculator?
How do I use a peptide calculator?
How much bacteriostatic water should be added to a peptide vial?
How much bacteriostatic water should be added to a peptide vial?
What do insulin syringe units mean?
What do insulin syringe units mean?
How are pre-mixed pens different?
How are pre-mixed pens different?
Related reading
All products sold by RegenMed are supplied strictly for laboratory research purposes only and are not for human consumption. Nothing on this page is medical advice, and no statement has been evaluated by the MHRA or FDA. Content summarising published research is provided for educational purposes.