GHRP-2 Reconstitution Calculator
Enter the amount you want to measure. The vial buttons will highlight which vial strengths create cleaner syringe-unit measurements.
What amount do you need?
Type the target amount, then choose mg or mcg. Example: 2mg or 500mcg.
Syringe size:
Possible vial strengths:
Best Match
Good Match
Usable
Harder to Measure
Example GHRP-2 Titration Schedule
| Protocol Item | Guidance |
|---|---|
| Dose | 1–5 mg per dose |
| Cycling | Daily, for 6 weeks, with a 30-day minimum cycle break between |
| Annual Frequency | Can be cycled 3–4× per year |
Possible vial strengths:
What Is It?
GHRP-2
Synthetic GH secretagogue.
Bacteriostatic Water
Sterile water containing a bacteriostatic preservative, commonly used when preparing multi-use research vials.
How To Mix GHRP-2
1
CleanUse alcohol swabs to clean the tops of both vials.
2
Draw BAC WaterDraw the selected amount of bacteriostatic water.
3
Inject SlowlyAdd the liquid slowly down the side of the vial.
4
Swirl GentlyDo not shake. Swirl gently until dissolved.
5
Store ProperlyStore as directed and protect from heat and light.
Best Practices & Common Mistakes
Best Practices
- Use sterile technique.
- Protect from light and heat.
- Store refrigerated when appropriate.
- Use clean syringe-unit math before measuring.
Common Mistakes
- Confusing milligrams with milliliters.
- Choosing an option with awkward decimal units.
- Using too little liquid for very small measurements.
- Shaking the vial aggressively.
GHRP-2 Storage & Handling
Lyophilized Powder: −20°C (−4°F) for long-term storage (up to 24 months). Refrigeration 2–8°C (36–46°F) for short-term use (up to ~3 months). Original sealed vial in the freezer is safest.
Reconstituted Solution: 2–8°C (36–46°F), use within ~7–14 days. Keep sealed, avoid light, and do not repeat freeze-thaw cycles.
Reconstituted Solution: 2–8°C (36–46°F), use within ~7–14 days. Keep sealed, avoid light, and do not repeat freeze-thaw cycles.
Frequently Asked Questions
The calculator itself does not convert μg/kg to mg; you must do that once. For example, a typical GHRP-2 dose for growth hormone release in humans can range from 0.1 μg/kg/h to 1 μg/kg/h. Calculate your total mg dose by multiplying your weight in kg by the desired dose in μg/kg, then divide by 1000 to convert to mg. For a 70 kg subject and a dose of 100 μg/kg, that's 70 × 100 = 7 μg, or 0.007 mg. This is far below the calculator's preferred threshold for accurate syringe measurement. The calculator will display a "Poor" warning for such small volumes, guiding you to scale up the dose or increase the BAC water volume.
The calculator doesn't measure appetite, but it does help you maintain precise, repeatable doses that are critical in appetite research. GHRP-2's minimal effect on hunger, especially compared to GHRP-6, means your dosing protocol can be more consistent and less influenced by feeding cues. Use the calculator's "Doses per vial" display to create a predictable schedule. Because GHRP-2 is also reported to raise cortisol and prolactin, consistent timing of doses (e.g., always before a fasted blood draw) is vital—something the calculator's reproducible volumes can help you achieve.
GHRP-2 has a reported elimination half‑life of about 0.5 hours, meaning it is cleared from the body quickly. This often necessitates two or three injections per day to maintain stable levels. Your calculator is perfect for this: once you reconstitute a vial, simply use the same vial strength and BAC volume in the calculator each time you need a dose. Change the "Desired dose" field to the mg amount for that injection. The calculator instantly shows the required units. The "Doses per vial" display will tell you how many total injections (e.g., 30) you can draw, helping you plan a 10‑day cycle of three daily doses.
The calculator's "Doses per vial" assumes perfect stability until the last drop. However, industry guidelines state that once reconstituted, GHRP-2 should be stored at 4 °C and used within 2–7 days. For longer storage, it must be frozen below −18 °C, and freeze‑thaw cycles should be avoided. Therefore, the calculator's displayed number of doses is only valid if you plan to use the vial within that short window. If your protocol requires more than 7 days of doses, you must freeze aliquots immediately after reconstitution or prepare multiple fresh vials.
The calculator's accuracy decreases at extremely low volumes (below 4 units). For a 1 μg/kg dose in a 20 kg child (20 μg or 0.02 mg), the calculator would likely warn you with a "Poor" rating due to the tiny draw volume. To improve accuracy, you should use a larger BAC volume (e.g., 5 mL for a 5 mg vial) to lower the concentration and increase the draw volume. Even then, manual double‑checking of your calculations is essential. The calculator is a mathematical aid, not a substitute for precise clinical dosing, especially in vulnerable populations.
Practical takeaway: If your real goal is weight or metabolic health, the most useful next step is discussing approved treatment options with a clinician rather than relying on an unapproved compound.
Important: This tool is for informational and research-reference purposes only. Not intended for human or veterinary use.