Sermorelin peptide calculator
A 3 mg Sermorelin vial mixed with 2 ml of bacteriostatic water holds 1.5 mg/ml. A 200 mcg dose is 0.13 ml — 13 units on a U-100 insulin syringe — and the vial holds 15 doses of that size.
Sermorelin dosage chart: units to draw
Units on a U-100 insulin syringe (100 units = 1 ml) for Sermorelin doses from 100 mcg to 500 mcg, by how much bacteriostatic water is in a 3 mg vial. The highlighted row is the 200 mcg dose used above.
| Dose | 1 ml water 3 mg/ml | 2 ml water 1.5 mg/ml | 3 ml water 1 mg/ml | Doses per vial |
|---|---|---|---|---|
| 100 mcg | 3.3 u 0.033 ml | 6.7 u 0.067 ml | 10 u 0.10 ml | 30 |
| 200 mcg | 6.7 u 0.067 ml | 13 u 0.13 ml | 20 u 0.20 ml | 15 |
| 500 mcg | 17 u 0.17 ml | 33 u 0.33 ml | 50 u 0.50 ml | 6 |
A 13-unit draw fits comfortably on a 0.3 ml insulin syringe (30-unit capacity), whose 1-unit (often half-unit) markings are easier to read than the 2-unit ticks on a 1 ml syringe.
Unit math only, not a dosing recommendation. The dose range is what published protocols and trials describe; see the Sermorelin guide for sources.
How to reconstitute Sermorelin
- Wipe both vial stoppers with a fresh alcohol swab and let them dry.
- Draw 2 ml of bacteriostatic water into a syringe.
- Insert the needle at an angle into the Sermorelin vial and let the water run slowly down the inner wall — do not inject directly onto the powder.
- Do not shake. Gently swirl the vial until the peptide fully dissolves.
- Storage for Sermorelin: Lyophilized refrigerated. Reconstituted: refrigerated 2–8 °C, use within 28 days.
- For a 200 mcg dose, draw to the 13-unit mark (0.13 ml) on a U-100 insulin syringe.
About Sermorelin
Sermorelin is a truncated 29-amino-acid analog of endogenous growth-hormone-releasing hormone (GHRH). It stimulates the pituitary to release GH in a physiological, pulsatile pattern.
Half-life: Approximately 10–20 minutes
Typical dose range: 100–500 mcg per injection, typically at bedtime 5 days per week
Class: Growth hormone-releasing hormone analog (GHRH 1-29)
Regulatory status: Previously FDA approved for pediatric GH deficiency (withdrawn in 2008 for commercial reasons, not safety). Widely compounded.
Read the full Sermorelin guide → — mechanism, side effects, storage, regulatory status and citations. Or browse the whole peptide glossary.
Other tools for Sermorelin
Calculators for related peptides: GHRP-2, GHRP-6, CJC-1295, Hexarelin, HGH (Somatropin).
Need a different unit or a different question? The peptide dose converter moves a dose between mcg, mg and IU, and the Sermorelin half-life chart shows how concentration accumulates across a dosing cadence. Loading Sermorelin into a reusable 3 ml pen instead of drawing it with a syringe? The peptide pen calculator turns the same vial into mcg per click and clicks to dial. All of them are listed on the free peptide tools page.
Sermorelin calculator FAQ
Is this a Sermorelin peptide calculator or a reconstitution calculator?
Both. This Sermorelin 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 3 mg Sermorelin vial?
This page is pre-filled with 2 ml of bacteriostatic water for a 3 mg Sermorelin vial because that is a common research ratio. You can adjust the water amount in the full calculator.
How many units is a 200 mcg Sermorelin dose?
13 units on a U-100 insulin syringe, when a 3 mg vial is mixed with 2 ml of bacteriostatic water (1.5 mg/ml). That is 0.13 ml. With a different amount of water the unit count changes — the dose chart on this page lists 1 ml, 2 ml, 3 ml mixes.
How many doses are in a 3 mg Sermorelin vial?
15 doses of 200 mcg. The number of doses depends only on vial strength and dose size — adding more or less water changes the volume of each draw, not how many draws the vial holds.
Does this Sermorelin dosage calculator give medical advice?
No. It only performs unit math. Dosing, titration, and whether Sermorelin is appropriate are clinical decisions that should be made with a licensed healthcare professional.
Skip the math — let the app handle it
Peptide Protocol remembers your Sermorelin vial, shows the units for every dose, tracks what is left, and rotates injection sites for you.
Get the iPhone 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.