Semax reconstitution calculator
Synthetic ACTH(4-10) analog. Studied for cognitive enhancement, neuroprotection, and BDNF upregulation. Developed in Russia. Published clinical work is almost entirely intranasal; the subcutaneous route is not in peer-reviewed trials.
By the DosingCalc editorial team. Numbers and dose ranges are checked against the sources listed on our editorial standards page.
Medically reviewed by Elena Whitmore, PharmD.
Half-life
0.5 hours
Storage
2-8°C refrigerated
Route
both
Shelf life
21 days
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Common side effects
headache, nasal irritation (if intranasal)
What you need
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Syringes
30G 1cc 1/2" Insulin Syringes
30-gauge needle, 1ml capacity, 1/2" length. Most versatile size for peptide dosing. Common brands: Brandzig, Easy Touch, Care Touch.
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30G 0.5cc Insulin Syringes
0.5ml capacity with finer markings and bold graduation numbers. Better for small doses under 50 units.
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Bacteriostatic Water
Storage
Mini Fridge for Peptide Storage
Dedicated peptide fridge keeps vials at 2-8°C without opening the kitchen door 12 times a day. The Cooluli 4L is the staple pick.
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3mL Peptide Vial Storage Case
10-slot transparent holder for 1-3mL vials. Keeps reconstituted peptides organized in the fridge and visible at a glance.
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Frequently asked questions
How much bacteriostatic water should I add to Semax?
For a 5mg vial of Semax, add 2ml of bacteriostatic water. This concentration works well with a standard insulin syringe.
What is the typical Semax dosage?
Typical research dosages for Semax range from 200 to 600 mcg, administered 1-2x daily, intranasal or subcutaneous.
How long does reconstituted Semax last?
Reconstituted Semax should be stored at 2-8°C refrigerated and used within 21 days. Unreconstituted vials can be stored for up to 24 months.
How do I calculate my Semax dose?
Divide your target dose by the concentration to get the volume, then multiply by 100 for units on a U-100 insulin syringe. For example, a 5mg vial in 2ml of bacteriostatic water gives 2500 mcg/ml. The calculator above does this automatically once you enter your vial size, water volume, and desired dose.
How many units of Semax should I draw on an insulin syringe?
On a U-100 insulin syringe, 1 unit equals 0.01 ml regardless of the barrel size (0.3ml, 0.5ml, or 1ml). Enter your reconstitution details in the calculator to see the exact number of units to draw for your dose.