Sermorelin Reconstitution & Dosage Calculator
This free Sermorelin calculator turns your vial size, the bacteriostatic water you add, and your target amount into a concentration, a draw volume, and the exact units on a U-100 insulin syringe. Sermorelin is a truncated GHRH analog handled in microgram amounts, so the water volume you choose has a large effect on whether the draw lands on a readable line. This is a measurement tool — it does not recommend an amount.
Sermorelin reconstitution calculator
Syringe
U-100 insulinPeptide in vial
Target amount
Bacteriostatic water
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Quick summary
- Converts vial size (mg), bacteriostatic water (mL), and a microgram amount into concentration, draw volume, and U-100 units.
- Reference math for the 5 and 10 mg vials Sermorelin is supplied in.
- Educational research and measurement tool only — it does not diagnose, treat, or recommend an amount.
What this Sermorelin calculator does
This calculator does one job well: it turns your vial size, the amount of bacteriostatic water you add, and your target amount into a concentration (mg/mL), a draw volume (mL), and the matching units on a U-100 insulin syringe. Change any input and the result updates instantly.
Sermorelin ships as a freeze-dried powder. Before it can be measured into a syringe it has to be reconstituted — dissolved in bacteriostatic water. How much water you add sets the concentration, and the concentration sets how many units each amount works out to. The presets above cover the most common Sermorelin vial setups; use the custom fields for anything else.
How to use the Sermorelin calculator
Pick your syringe
Choose the U-100 insulin syringe you'll draw with. Smaller syringes (0.3 mL / 30u) have finer lines, which helps when the draw is small.
Enter your vial and water
Set the milligrams in your Sermorelin vial and the bacteriostatic water you added. Together these set the concentration.
Set your target amount
Toggle mg or mcg and pick (or type) the amount you're measuring for. The calculator does the conversion for you.
Read the draw
The result panel shows concentration, draw volume, and the exact U-100 units to pull, plus how many doses your vial contains.
Sermorelin reconstitution math, explained
The math is short. Concentration = vial size ÷ bacteriostatic water. Draw volume = target amount ÷ concentration. Units = draw volume × 100 (a U-100 syringe reads 100 units per mL). The table below shows common Sermorelin setups and the units for a 1 mg amount at each.
| Vial size | Bac water | Concentration | Units per 1 mg |
|---|---|---|---|
| 5 mg | 1.0 mL | 5 mg/mL | 20 units |
| 5 mg | 2.0 mL | 2.5 mg/mL | 40 units |
| 10 mg | 1.0 mL | 10 mg/mL | 10 units |
| 10 mg | 2.0 mL | 5 mg/mL | 20 units |
| 10 mg | 3.0 mL | 3.33 mg/mL | 30 units |
Sermorelin amount-to-units reference
How common amounts convert to U-100 syringe units at two example concentrations. These are arithmetic conversions for reference, not a recommendation of any amount.
| Amount | Volume (mL) | U-100 units |
|---|---|---|
| 100 mcg (0.1 mg) | 0.02 mL | 2 units |
| 200 mcg (0.2 mg) | 0.04 mL | 4 units |
| 300 mcg (0.3 mg) | 0.06 mL | 6 units |
| 500 mcg (0.5 mg) | 0.1 mL | 10 units |
| Amount | Volume (mL) | U-100 units |
|---|---|---|
| 100 mcg (0.1 mg) | 0.04 mL | 4 units |
| 200 mcg (0.2 mg) | 0.08 mL | 8 units |
| 300 mcg (0.3 mg) | 0.12 mL | 12 units |
| 500 mcg (0.5 mg) | 0.2 mL | 20 units |
Mixing, color & storage tips
Water volume drives readability
Sermorelin amounts sit in the low hundreds of micrograms. At 5 mg/mL a 300 mcg target is 6 units — a very small draw on a U-100 syringe. Adding more water lowers the concentration and spreads the same amount across more units, which is easier to read accurately.
Mixing without foam
Run the bacteriostatic water slowly down the inside wall of the vial rather than straight onto the powder, then swirl gently until clear. Do not shake — agitation can damage peptides.
Storage and vial life
Keep the dry powder cold and dark. Once reconstituted, refrigerate, keep it out of light, and plan around a limited usable window. Do not freeze a reconstituted vial.
Sermorelin vs other GH-axis compounds
Sermorelin is a GHRH analog, the same broad mechanism class as Tesamorelin and distinct from ghrelin-mimetic secretagogues like Ipamorelin. If you are working with a blend that combines the two classes in one vial, the stack calculator handles per-component math.
Sermorelin supplies checklist
A simple reconstitution shopping list. Confirm vial size and batch documentation before you buy.
Sermorelin
- Batch COA on every vial
- Third-party purity tested
- U.S. fulfillment, discreet shipping
Sermorelin — frequently asked questions
What does this Sermorelin calculator tell me?
It converts your vial size, bacteriostatic water volume, and target amount into concentration in mg/mL, draw volume in mL, and the matching units on a U-100 insulin syringe. It is a measurement tool, not a recommendation.
Is the Sermorelin calculator free?
Yes. It runs entirely in your browser, is free, and requires no account or signup.
How much bacteriostatic water do I add to a 10 mg Sermorelin vial?
That depends on the concentration you want. 10 mg with 1 mL makes 10 mg/mL; 10 mg with 2 mL makes 5 mg/mL, which turns a 300 mcg target into a 6-unit draw instead of a 3-unit one. More water means a larger, easier-to-read draw.
How many units is 300 mcg of Sermorelin?
At 5 mg/mL it is 6 units (0.06 mL). At 2.5 mg/mL it is 12 units (0.12 mL). Units always depend on your specific concentration, which is why the calculator asks for your exact vial and water volume.
What is the difference between Sermorelin and Tesamorelin?
Both are GHRH analogs. Tesamorelin is a stabilised analog studied at higher milligram amounts, while Sermorelin is the shorter GHRH 1-29 fragment handled in micrograms. The reconstitution math is identical in form — only the scale differs.
How long does a reconstituted Sermorelin vial last?
Store it refrigerated and dark and plan around a limited usable window. Do not freeze a mixed vial. Keep the dry, unmixed powder cold for longer storage.
Is this medical advice?
No. This page and calculator are for education and research planning only. Products referenced are sold strictly as research chemicals and are not for human or veterinary use.
Sources & further reading
Related calculators
Sermorelin protocol & evidence
Dosing for Sermorelin comes from published human trials. The protocol page carries the schedule that was actually administered, with the citation.