Dose calculator
GHRP-6 dose calculator
Convert any GHRP-6 dose into syringe units in real time, pre-filled with a 5 mg / 2 mL example.
Draw on a U-100 syringe
0.00 units
Volume to draw
0.000 mL
GHRP-6 is a short-acting injectable peptide people use to trigger pulses of their own growth hormone, often when increased appetite is also a goal. Like GHRP-2, it mimics ghrelin at the GH-secretagogue receptor, but it produces a noticeably stronger hunger response. Studies confirm clear post-injection GH peaks alongside meaningful appetite stimulation. This page covers reconstitution math and per-injection logging cadence.
How the GHRP-6 dose calculator works
GHRP-6 doses are 100-300 mcg, taken 1-3 times daily, similar to GHRP-2 but with stronger appetite stimulation. On a 5 mg vial mixed with 2 mL water (2.5 mg/mL), a 100 mcg dose draws 4 units. Same readability concern as GHRP-2.
The formula is volume in mL equals dose mg divided by concentration mg/mL, then volume times one hundred to get units on a U-100 insulin syringe. With a 2.5 mg/mL GHRP-6 solution and a 0.1 mg dose, the draw is 0.04 mL or about 4 units. Type any other dose and the unit count updates in real time — no spreadsheets, no guesswork.
Inputs that genuinely matter: concentration (which only changes when you reconstitute a new vial) and dose mass. Syringe type matters too, but only because U-100 vs U-40 changes the multiplier — almost every modern insulin syringe is U-100, which is why the math defaults to that. Edge cases worth flagging: switching from mcg to mg without checking the input unit, or carrying yesterday's unit count over to a new vial that was reconstituted with a different volume of BAC water.
Worked example
Walking one GHRP-6 dose through the math
- The vial holds 5 mg of GHRP-6, mixed into 2 mL of bacteriostatic water — concentration 2.50 mg/mL.
- Your 0.1 mg dose ÷ 2.50 mg/mL = 0.040 mL of solution to pull.
- Multiply by 100 (because U-100 means 100 units per mL): 0.040 × 100 = 4 units.
- Double the dose to 0.2 mg and the unit count doubles to 8 — the relationship is linear at a fixed concentration.
- Change the diluent volume and every one of these numbers moves; change the dose alone and only the last one does.
GHRP-6 titration ladder at this concentration
What different GHRP-6 dose steps draw on a U-100 insulin syringe at the example 2.50 mg/mL concentration.
| Dose (mg) | Volume (mL) | Units (U-100) |
|---|---|---|
| 0.05 | 0.020 | 2 |
| 0.1 | 0.040 | 4 |
| 0.2 | 0.080 | 8 |
| 0.4 | 0.160 | 16 |
Doubling the GHRP-6 dose doubles the unit count. Halving it halves the count. Step-ups under 5 units are hard to read accurately — re-reconstitute with more water if your titration hits that range.
Scenarios people actually run into
Three things that come up logging GHRP-6
- You're sitting at the 0.1 mg GHRP-6 step and your prescriber bumps you up. The new dose is double — 8 units instead of 4. Same vial, same syringe, twice the volume on the line.
- Your fingers reach for the syringe and the unit count from last week is still in your head. Half the time that number is fine; the other half, the vial changed and the right answer moved. The calculator is the second pair of eyes.
- You skipped a week. GHRP-6 cadence is 7 doses per week, and doubling up to "catch up" almost never reads how people expect — log the skip, then log the next normal dose.
Same-category neighbor
GHRP-6 next to Tesamorelin
Both sit in the GH Secretagogue bucket — here's the dose math side by side on each one's example vial.
| GHRP-6 | Tesamorelin | |
|---|---|---|
| Example dose | 0.1 mg | 1 mg |
| Concentration | 2.50 mg/mL | 2.50 mg/mL |
| Units to draw | 4 | 40 |
Want the full breakdown? Tesamorelin reference →
How GHRP-6 dosing is tracked
Published research examining GHRP-6 often documents administration schedules ranging from one to three times daily, a cadence planned to study its pulsatile effect on pituitary GH output. A critical variable to record in any log is the timing of each dose relative to food intake, as this can significantly influence the observable impact on appetite. For example, a protocol might standardize administration to a fasted state, such as 30-60 minutes before a meal or prior to a nighttime sleep period, to consistently observe its effects on hunger and sleep patterns. A U-100 insulin syringe is the standard instrument used to draw and administer the precise microgram-level volumes calculated from a reconstituted solution.
When constructing a long-term research plan, maintaining a consistent schedule is crucial for generating a clean dataset. The documented effects of GHRP-6 on cortisol and prolactin mean that a comprehensive log may also include fields for subjective stress levels, perceived water retention, or disturbances in sleep architecture. Documenting these secondary variables alongside primary metrics like hunger ratings allows for a more holistic observation of the molecule's physiological impact. The goal is to build a detailed record where correlational analyses can be performed over the entire study duration.
A practical scheduling note that comes up repeatedly in long-running GHRP-6 logs is the interaction between the peptide's strong appetite stimulus and the rest of the day's eating pattern. A pre-bed administration that produces a sharp hunger response within thirty to sixty minutes can derail a fasted overnight window, while a pre-meal administration may amplify caloric intake well beyond the planned baseline. Researchers who handle this as a variable rather than a nuisance typically also record the size and macronutrient composition of the meal that follows each dose, since the same hunger score after a high-protein meal and after a snack of refined carbohydrate are not equivalent data points. Building these fields into the log from the first day of a cycle avoids a common failure mode where a reader looks back at week four of an otherwise meticulous record and discovers that the single most distinctive variable for this molecule was never captured.
Common GHRP-6 dose-calculation mistakes
- Interpreting the transient increases in cortisol and prolactin as an unexpected deviation, rather than a well-documented characteristic of this first-generation molecule.
Frequently asked questions about GHRP-6 dose calculator
How does the GHRP-6 dose calculator turn mg into syringe units?
Does the GHRP-6 dose calculator know which syringe I'm using?
Why does the same GHRP-6 dose pull a different unit count today than last week?
What if my GHRP-6 dose lands at fewer than 5 units?
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