GHRP-2 half-life
GHRP-2 has an elimination half-life of about 30 min (range 15 min–1 h). Use the free calculator to plot how GHRP-2 levels rise and decay across your own doses.
Reference data
- Half-life
- 30 min (range 15 min–1 h)
- Route
- SC
- Category
- GH secretagogues
- Evidence
- Limited
- Also known as
- Pralmorelin
Short plasma half-life in human studies (roughly 15–60 minutes).
How much GHRP-2 remains over time
For a single dose with first-order elimination, half of what remains is cleared every 30 min.
| Half-lives | Time after dose | Remaining | Eliminated |
|---|---|---|---|
| 1 | 30 min | 50% | 50% |
| 2 | 1 h | 25% | 75% |
| 3 | 1.5 h | 12.5% | 87.5% |
| 4 | 2 h | 6.25% | 93.75% |
| 5 | 2.5 h | 3.13% | 96.88% |
GHRP-2 FAQ
What is the half-life of GHRP-2?
GHRP-2 has an elimination half-life of about 30 min (range 15 min–1 h) (SC). Short plasma half-life in human studies (roughly 15–60 minutes).
How long does GHRP-2 stay in your system?
With first-order elimination, about 97% of a single dose is cleared after five half-lives, roughly 2.5 h for GHRP-2. Individual clearance varies with dose, injection site, kidney function and other factors.
How long until GHRP-2 reaches steady state?
With consistent repeated dosing, levels approach steady state after about 4 to 5 half-lives, or roughly 2 h to 2.5 h for GHRP-2.
How reliable is this GHRP-2 half-life?
Evidence level: Limited. Based on early-phase human trials, small human studies, or animal pharmacokinetics only.