Peptide Protocol
Peptide Protocol
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Semax peptide calculator

Pre-filled Semax dosage and reconstitution math: a 5 mg vial, 2 ml of bacteriostatic water, and the resulting U-100 insulin-syringe units. Adjust the inputs below or open the full calculator.

Typical 300 mcg dose:
units on a 100u insulin syringe
= ml per injection · concentration mg/ml
Open full calculator with these values →

How to reconstitute Semax

  1. Wipe both vial stoppers with a fresh alcohol swab and let them dry.
  2. Draw 2 ml of bacteriostatic water into a syringe.
  3. Insert the needle at an angle into the Semax vial and let the water run slowly down the inner wall — do not inject directly onto the powder.
  4. Do not shake. Gently swirl the vial until the peptide fully dissolves.
  5. Store the reconstituted vial refrigerated (2–8 °C / 36–46 °F) and use within roughly 28 days.
  6. Draw each dose to the unit mark shown above for your target 300 mcg dose.

About Semax

Semax is a synthetic peptide derived from a fragment of adrenocorticotropic hormone (ACTH). It is studied for cognitive enhancement, neuroprotection, and stroke recovery.

Half-life: Short systemically (minutes); CNS effects persist hours
Typical dose range: 200–600 mcg intranasally, 1–3x daily
Class: Synthetic ACTH 4-10 analog / nootropic

Read the full Semax guide →

Semax calculator FAQ

Is this a Semax peptide calculator or a reconstitution calculator?

Both. This Semax calculator converts vial strength, bacteriostatic-water volume, and target dose into milliliters and insulin-syringe units. It does not recommend a medical dose.

How much bacteriostatic water for a 5 mg Semax vial?

This page is pre-filled with 2 ml of bacteriostatic water for a 5 mg Semax vial because that is a common research ratio. You can adjust the water amount in the full calculator.

How many units is a 300 mcg Semax dose?

With the default 5 mg vial and 2 ml BAC-water ratio, the preview above calculates the U-100 syringe units for a 300 mcg dose. Change the dose if your protocol uses a different amount.

Does this Semax dosage calculator give medical advice?

No. It only performs unit math. Dosing, titration, and whether Semax is appropriate are clinical decisions that should be made with a licensed healthcare professional.

Skip the math — let the app handle it

Peptide Protocol pre-fills reconstitution, tracks every dose, and flags rotations automatically.

See the app →

Educational use only. Peptide Protocol is an informational tool. Nothing on this page constitutes medical advice. Many peptides are prescription-only or restricted in your jurisdiction. Always consult a licensed healthcare professional before injecting any compound.