Elixir · Tools

Peptide Calculator

Reconstitution, dosing & cycle planning — precise measurements for your research protocols.

For legitimate research purposes only · Not intended for human consumption · Must be 21+ to access
Vial Information
mg
Total lyophilized peptide in vial
mL
Volume of BAC water to add
Dosing Target
Results
Concentration
—
mcg / mL
Draw To
—
units on syringe
Volume / Dose
—
mL per injection
Doses / Vial
—
total injections
Vial Lasts
—
days
Daily Total
—
mcg / day
Syringe Fill Visual
Draw to — units on a 100u syringe
Reconstitution Setup
mg
mL
Common Dose Reference Table

The highlighted row shows your target dose. Adjust below to compare syringe draw amounts across common doses.

Dose (mcg) Volume (mL) 100u Syringe 50u Syringe
Enter values above to generate table
Protocol Setup
×/day
days
mg
Cycle Summary
Total Needed
—
mg for full cycle
Vials to Purchase
—
vials required
Total Injections
—
over cycle
Daily Total
—
mcg per day
Blend Setup

Add 2–6 peptides you want to combine into a single syringe. Each peptide is drawn separately from its own reconstituted vial. The calculator shows exactly how many units to draw from each vial and your total fill.

Blend Results
Syringe Fill — Draw in order shown above
Total Draw
—
of — units syringe capacity
Total Volume
—
mL total injection
⚠ Total draw exceeds syringe capacity. Reduce doses or switch to a larger syringe.

Drawing Order Tips

  • Draw the clearest / most colourless solution first
  • If one peptide is particularly sensitive, draw it last to minimise cross-contamination
  • Gently roll — never shake — the syringe after drawing to mix
  • Use immediately after blending for best stability
✦

Understanding Reconstitution

1

Start with lyophilized peptide

Peptides are shipped as freeze-dried powder in a sealed vial. The label shows total mg content — commonly 2mg, 5mg, or 10mg.

2

Add Bacteriostatic Water (BAC Water)

Using a sterile syringe, slowly inject your chosen BAC water volume into the vial. More water = lower concentration (larger draws). Less water = higher concentration (smaller draws).

3

Calculate your concentration

Concentration (mcg/mL) = peptide (mg) × 1000 ÷ water (mL). Example: 5mg in 2mL = 2,500 mcg/mL.

4

Convert dose to syringe units

Units = (desired dose mcg ÷ concentration mcg/mL) × syringe size. Example: 250mcg ÷ 2500 × 100 = 10 units on a 100u syringe.

Key Formulas
Concentration  = (mg × 1000) ÷ mL water
Volume / dose   = dose (mcg) ÷ concentration (mcg/mL)
Syringe units   = volume/dose × syringe size
Doses / vial    = (mg × 1000) ÷ dose (mcg)
Days supply     = doses/vial ÷ doses/day

Storage Reminders

  • Store lyophilized vials at −20°C in a dry, dark environment
  • After reconstitution, refrigerate at +4°C and use within 3–4 weeks
  • Avoid repeated freeze-thaw cycles — they degrade peptide integrity
  • Always use sterile bacteriostatic water for reconstitution

⚠ Research & Educational Use Only

This calculator is for informational and educational purposes only. It does not constitute medical advice, diagnosis, or treatment. All peptides sold by Elixir are strictly for legitimate in-vitro research purposes. Not approved for human consumption. Must be 21+ to purchase.