For Research Use Only
Peptide Dose Calculator
Peptidepick to auto-fill defaults
Vial sizetotal peptide mass
Total peptide mass listed on the vial label — most are 2, 5 or 10 mg.
Bacteriostatic Waterdiluent volume
mL
Volume of bacteriostatic water mixed into the vial. Less water = higher concentration = fewer units per dose.
Target doseper administration
How much peptide you want per injection — the calculator converts this to syringe units.
Syringe size
100-unit insulin syringes (1 mL) are most common. Smaller syringes give finer readability on tiny doses.
Bacteriostatic Water Calculator
Not sure how much water to add? Enter your vial size, desired dose, and target draw — we'll calculate the exact BAC water volume.
Vial sizepeptide mass in the vial
Desired dosetarget per injection
Target draw per dose
Syringe size
Reconstitution Guide
A seven-step routine for transforming lyophilised peptide powder into a stable, draw-ready solution. Designed for first-timers and seasoned researchers alike.
Sterile FirstWork in a clean area, wash hands thoroughly, and use fresh sterile supplies for every reconstitution.
What you'll need
Peptide vial
Bacteriostatic water
Insulin syringe
Alcohol swabs
Sharps container
0 of 7 complete
- 01Gather supplies. Lay out your peptide vial, bacteriostatic water vial, a fresh insulin syringe, and alcohol swabs on a clean, flat surface.
- 02Swab the stoppers. Wipe the rubber tops of both vials with separate alcohol swabs. Let them air-dry for 10–15 seconds.
- 03Draw bacteriostatic water. Pull back the plunger to fill the syringe with air equal to your target volume. Insert into the BAC water vial, inject the air, then slowly draw the water. Use the BAC Water tab to find the right mL.
- 04Inject along the vial wall. Insert the needle and angle it so water trickles down the inner glass — never squirt directly onto the powder, as that can degrade the peptide.
- 05Do not shake. Gently roll the vial between your palms until the powder is fully dissolved. Shaking causes foaming and can break peptide bonds.
- 06Store correctly. Refrigerate at 2–8 °C, protected from light. Most reconstituted peptides are stable for 4–8 weeks. Unreconstituted lyophilised powder can be frozen for 1–2 years.
- 07Draw each dose. Use the Dose Calculator for every administration. Swab the stopper before every draw and use a fresh needle each time.
Frequently Asked Questions
Short, source-checked answers to the questions that come up most when reconstituting and dosing research peptides.
Bacteriostatic water is sterile water containing 0.9% benzyl alcohol, a preservative that inhibits bacterial growth. It's the standard diluent for reconstituting research peptides because it keeps the solution stable for weeks under refrigeration. Plain sterile water works in a pinch but the vial must be consumed within 24 hours.
It depends on the concentration you want. Adding 2 mL to a 10 mg vial gives 5,000 mcg/mL. Less water means higher concentration and fewer units drawn per dose. The BAC Water tab works backwards from your desired draw amount to compute the exact diluent volume.
Insulin syringes are marked in "units" where 100 units = 1 mL. So 10 units = 0.10 mL and 5 units = 0.05 mL. The Dose Calculator converts your target dose into the matching number of units on whichever syringe you've chosen.
Keep reconstituted vials refrigerated at 2–8 °C, protected from light. Most peptides remain stable for 4–8 weeks. Unreconstituted lyophilised powder stored frozen can last 1–2 years.
Some pairings are commonly stacked (e.g. CJC-1295 + Ipamorelin). When mixing, calculate each peptide separately, draw the correct units of each into the same syringe, and use immediately. Never pre-mix into a shared storage vial.
Insulin syringes can typically only be read to the nearest 1–2 units. Round to the nearest whole unit, or adjust your BAC water volume so the dose lands on a clean mark. The BAC Water tab is built for exactly this.
Your concentration is too low for the chosen syringe. Add less BAC water to raise concentration (and lower units per dose), or switch to a 100-unit syringe.
No. The pre-filled values are general reference points drawn from published literature and are starting points only. Always consult current research for your specific peptide, protocol, and subject parameters. This tool is for research use only.
Questions or feedback?
Hit a snag, spot a bug, or want a peptide added to the reference list? We'd love to hear from you.
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