CJC-1295 half-life and pharmacokinetics chart
Pre-filled plasma half-life model for CJC-1295. See how a 8 days half-life affects steady state, accumulation, peak-trough swing, and clearance timing.
Preset values: 100 mcg every 2 days, half-life ~8 days.
DAC-linked form: half-life ~8 days. Every-other-day dosing creates steady baseline elevation of GHRH signal.
Open interactive chart →Why these values?
The half-life used here (8 days) is the published or well-established estimate for CJC-1295 from pharmacokinetic studies. The default dose (100 mcg) and cadence (every 2 days) 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 8 days and dosing every 2 days, the ratio τ/t½ = 0.25 gives an accumulation factor of ~6.29×. That means the steady-state peak plasma mass is about 6.3× the mass of a single dose.
Time to steady state. Approximately 5 half-lives (~40.0 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.
How long does CJC-1295 stay in your system?
After a single dose, half of the CJC-1295 is gone in about 8 days, 97% is cleared in about 40 days (five half-lives), and under 1% remains after about 53 days.
| Cleared | Remaining | Half-lives | Time after one CJC-1295 dose |
|---|---|---|---|
| 50% | 50% | 1 | 8 days |
| 75% | 25% | 2 | 16 days |
| 90% | 10% | 3.3 | 27 days |
| 97% | 3% | 5.1 | 40 days |
| 99% | 1% | 6.6 | 53 days |
Between doses. At every 2 days, doses land 0.25 half-lives apart, so about 84% of the peak is still present when the next dose goes in. The steady-state swing in this model runs from ~629 mcg at peak to ~529 mcg at trough — a flat, heavily overlapping profile where each dose tops up a large carry-over.
A first-order, one-compartment model: it leaves out absorption delay from the injection depot, protein binding and individual differences in clearance, and effects can outlast plasma levels. Good for dosing rhythm; not clinical pharmacokinetics.
CJC-1295 half-life FAQ
What is the plasma half-life of CJC-1295?
This chart uses an estimated CJC-1295 plasma half-life of about 8 days. Published values can vary by formulation, route, assay, and study design.
How long until CJC-1295 reaches steady state?
A simple first-order model reaches practical steady state after about five half-lives, which is roughly 40.0 days for CJC-1295.
How long does CJC-1295 stay in your system?
After a single dose, half of the CJC-1295 is gone in about 8 days, 97% is cleared in about 40 days (five half-lives), and under 1% remains after about 53 days. Those are plasma estimates from a half-life of 8 days; effects can outlast plasma levels, and detection windows depend on the assay.
How much CJC-1295 is left when the next dose is due?
Dosing every 2 days is 0.25 half-lives apart, so about 84% of the peak level remains at the next dose. At steady state that means a peak of ~629 mcg and a trough of ~529 mcg in the model.
Does this CJC-1295 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 CJC-1295?
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 CJC-1295
Half-life charts for related peptides: Hexarelin (1 hour), Ipamorelin (2 hours), MOD-GRF (1-29) (30 minutes), Tesamorelin (30 minutes).
Track your real CJC-1295 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.