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Sermorelin Dosage Calculator

Sermorelin is supplied in 5 mg and 10 mg lyophilised vials. Like other GHRH analogs, research draws sit in the low hundreds of micrograms, so more water generally means easier measurement.

The formula

Concentration (mg/mL) = vial strength (mg) ÷ bacteriostatic water (mL). Draw volume (mL) = dose (mg) ÷ concentration (mg/mL). On a U-100 insulin syringe, units = draw volume (mL) × 100. For Sermorelin: a 5 mg vial in 2 mL of water is 2.5 mg/mL, so a 200 mcg dose is 0.08 mL — 8 units.

Your Sermorelin vial

1 mg = 1,000 mcg

Syringe size

Your result

Draw to

8

units on a U-100 insulin syringe

= 0.08 mL

Concentration
2.5mg/mL
2,500 mcg/mL
Draws per vial
25
at 200 mcg each

For laboratory and research use only. This calculator is a unit-conversion aid and is not medical guidance or a dosing recommendation.

Buy Sermorelin — 99%+ purity, COA per lot

Sermorelin units per dose — quick reference

U-100 insulin-syringe units for each vial size we ship, reconstituted with 2 mL of bacteriostatic water.

Sermorelin insulin syringe units per dose by vial size
VialConcentration100 mcg200 mcg300 mcg500 mcg
5 mg2.5 mg/mL4 u8 u12 u20 u
10 mg5 mg/mL2 u4 u6 u10 u

How to reconstitute a Sermorelin vial

  1. 1. Bring the vial to room temperature. Let a refrigerated or frozen vial equilibrate before opening so condensation doesn't form on the powder.
  2. 2. Swab both stoppers. Wipe the Sermorelin vial and the bacteriostatic water vial with alcohol and let them dry.
  3. 3. Draw your diluent. Pull the volume you entered above into the syringe.
  4. 4. Run it down the glass wall. Angle the needle so water flows down the side of the vial rather than jetting onto the peptide cake — shear and foaming degrade peptides.
  5. 5. Swirl, never shake. Roll the vial gently until fully clear. Do not vortex or shake.
  6. 6. Label and refrigerate. Mark the date and concentration, then store at 2-8 °C away from light.

Sermorelin calculator FAQs

How many units is 200 mcg of sermorelin from a 5 mg vial?

5 mg with 2 mL of bacteriostatic water is 2,500 mcg/mL, so 200 mcg is 0.08 mL — 8 units on a U-100 insulin syringe, with 25 draws per vial.

How do you calculate a Sermorelin dose in syringe units?

Divide the vial strength by the bacteriostatic water you added to get the concentration: concentration (mg/mL) = vial mg ÷ water mL. Then draw volume (mL) = dose (mg) ÷ concentration. On a U-100 insulin syringe, 1.0 mL is 100 units, so units = draw volume × 100.

Does adding more water change how much Sermorelin is in the vial?

No. The vial holds a fixed mass of lyophilised powder. More bacteriostatic water only dilutes it — each syringe unit carries less compound and the draw volume for the same dose gets larger, which can make small doses easier to measure accurately.

How is reconstituted Sermorelin stored?

After reconstitution with bacteriostatic water, research peptides are kept refrigerated at 2-8 °C, protected from light, and away from freeze-thaw cycles. Unreconstituted lyophilised vials are far more stable and are typically stored frozen.

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