GHRP-2 half-life and pharmacokinetics chart
Pre-filled plasma half-life model for GHRP-2. See how a 15 minutes half-life affects steady state, accumulation, peak-trough swing, and clearance timing.
Preset values: 100 mcg every 8 hours, half-life ~15 minutes.
15 min half-life. Multi-dose daily protocols (pre-meal) aim to mimic ghrelin pulses.
Open interactive chart →Why these values?
The half-life used here (15 minutes) is the published or well-established estimate for GHRP-2 from pharmacokinetic studies. The default dose (100 mcg) and cadence (every 8 hours) reflect typical standard protocols — not a prescription or recommendation. Your specific product's label and your clinician's protocol override any default here.
Accumulation. With a half-life of 15 minutes and dosing every 8 hours, the ratio τ/t½ = 32.00 gives an accumulation factor of ~1.00×. That means the steady-state peak plasma mass is about 1.0× the mass of a single dose.
Time to steady state. Approximately 5 half-lives (~0.1 days) of consistent dosing before average concentration stops rising. Dose-escalation protocols that change doses before this point are titrating against a still-rising baseline, which is one reason weekly peptides feel "slow" at the start.
What the chart shows — and what it doesn't
The visualizer is a simple first-order single-compartment exponential decay model. It's accurate enough for understanding dosing rhythm, peak-trough ratios, and steady-state math, but not clinical pharmacokinetics. It doesn't model:
- Absorption delay from subcutaneous injection depots
- Two-compartment distribution (central vs peripheral)
- Protein binding (significant for GLP-1 agonists with albumin binding)
- Individual variability in clearance (renal, hepatic)
- Receptor-level effects that outlast plasma clearance
For most questions about "how often should I dose," the model is sufficient. For clinical decisions, use the manufacturer's label and a qualified prescriber.
GHRP-2 half-life FAQ
What is the plasma half-life of GHRP-2?
This chart uses an estimated GHRP-2 plasma half-life of about 15 minutes. Published values can vary by formulation, route, assay, and study design.
How long until GHRP-2 reaches steady state?
A simple first-order model reaches practical steady state after about five half-lives, which is roughly 1 hours for GHRP-2.
Does this GHRP-2 pharmacokinetics chart recommend a dosing schedule?
No. It visualizes half-life, accumulation, peaks, and troughs from values you enter. It is not a prescription, dose recommendation, or substitute for the product label or clinician guidance.
Why does steady state matter for GHRP-2?
Steady state explains why long-half-life compounds can keep rising for weeks after starting or changing a dose, while short-half-life compounds behave more like brief pulses.
Related for GHRP-2
Track your real GHRP-2 protocol
Peptide Protocol logs every actual injection time and shows your real timeline — not a model. Side-effect tracking included.
Get the iPhone app →Educational use only. Nothing on this page constitutes medical advice. Pharmacokinetic parameters are published estimates; individual PK varies. Use label values and consult a clinician for any dosing decision.
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.