Tools
Recon Calculator
Enter your vial strength and diluent volume to get concentration, syringe units per dose and how many doses the vial holds.
Start typing a peptide name and select it to see typical starting and maintenance dosing, pulled directly from the Peptide Academy.
Both are U-100: 1 unit = 0.01 mL.
Fill in the vial strength, bacteriostatic water and your desired dose above to see the concentration, syringe units and doses per vial.
Fill in vial strength, bacteriostatic water and your desired dose above to see the syringe fill mark.
1 mg = 1,000 mcg. Edit either field and the other updates instantly.
Everything you need to safely reconstitute a peptide
Bacteriostatic Water
Item 1Diluent used to reconstitute the peptide vial. Contains 0.9% benzyl alcohol to prevent bacterial growth.
Do NOT use sterile water for injection — it lacks a preservative.
Insulin Syringes (U-100)
Item 2Used to draw and inject the reconstituted dose. 1 mL / 100 units is most common.
Match the syringe size to your dose volume for accuracy.
Reconstitution Syringe (larger)
Item 3Optional larger syringe (e.g. 3 mL) to transfer bacteriostatic water into the vial cleanly.
Helpful for high-volume reconstitution.
Alcohol Prep Pads (70% isopropyl)
Item 4Wipe the vial rubber stopper and injection site before use to maintain sterility.
Let the alcohol fully evaporate before piercing the stopper.
Mixing Needles (18G–22G)
Item 5Larger bore needles used to draw bacteriostatic water into and out of the vial without coring the stopper.
Never inject with these — swap to an insulin syringe.
Sharps Container
Item 6FDA-cleared container for safe disposal of used needles and syringes.
Never recap or throw loose needles in household trash.
Sterile Gloves
Item 7Maintain a clean environment and reduce contamination risk during reconstitution.
Optional but recommended for best hygiene.
Vial Crimper / Decapper
Item 8Removes the metal cap from multi-dose vials if reconstituting from bulk raw powder vials.
Only needed for certain research-grade vials.
Clean Workspace / Surface
Item 9A sanitized, flat area to lay out supplies and perform reconstitution.
Wipe down with alcohol before starting.
Timer or Clock
Item 10Allow the peptide to dissolve fully — most vials need 1–3 minutes with gentle swirl.
Do NOT shake the vial; swirl gently to avoid denaturing the peptide.
Labels & Marker
Item 11Label the reconstituted vial with peptide name, concentration, date, and reconstitution details.
Helps track potency and expiry once mixed.
Storage (Refrigerator)
Item 12Most reconstituted peptides require refrigeration (36–46 °F / 2–8 °C) to remain stable.
Confirm storage requirements for your specific peptide.
This calculator is for reference only. Always verify calculations with a healthcare provider before administration.