Half-life calculator
BPC-157 half-life calculator
BPC-157 is a widely used recovery and gut-health peptide. Its elimination half-life is about 4 hours — so a dose largely clears in roughly 20 hours. See how it rises as it absorbs, peaks, and falls below.
Runs entirely in your browser — nothing is sent anywhere.
Steady-state peak
189 mcg
Half-life
4 h
Reaches steady state
~1 days
Accumulation
1.02×
Solid = while you're dosing; dashed = projected clearance after the last dose. The curve rises as each dose absorbs, then falls — and climbs over the first several doses until it settles into a steady peak-and-trough.
How long does BPC-157 stay in your system?
A compound is considered essentially cleared after about five half-lives. With BPC-157's half-life of about 4 hours, that's roughly 20 hoursafter your last dose. The calculator's dashed line shows that clearance tail.
BPC-157 steady state & accumulation
BPC-157's half-life is short relative to daily dosing, so it clears almost completely between doses and doesn't meaningfully accumulate (about 1×). Each dose behaves much like the first — the chart shows a clean spike that returns to baseline before the next one.
Half-life figures for BPC-157 are approximate — reported values vary and absorption is especially uncertain. Use this as an illustration, not a precise pharmacokinetic profile.
Questions
BPC-157 half-life, answered
What is BPC-157's half-life?
BPC-157's elimination half-life is approximately 4 hours — the time for its level in the body to fall by half. This is an approximate figure for illustration; reported values vary.
How long does BPC-157 stay in your system?
A compound is essentially cleared after about five half-lives, so BPC-157 largely clears in roughly 20 hours after your last dose.
How long until BPC-157 reaches steady state?
With a half-life of 4 hours dosed daily, BPC-157 clears almost completely between doses, so it doesn't meaningfully accumulate — each dose behaves like the first.
Does BPC-157 accumulate between doses?
Not meaningfully — its half-life is short relative to daily dosing, so it clears between doses (accumulation ≈ 1×).
Track your BPC-157 privately
Log your doses, schedule, and how you feel — on your device, no account.
Other half-life calculators
This is a simplified one-compartment model with first-order absorption, for education — not medical advice or a guarantee of how BPC-157 behaves in your body. Many peptides are not FDA-approved and are sold for research use only; Lirea neither sells nor supplies any compound.
Launching soon
Your shot. Your data. Your device.
Track your weekly dose, your titration, and how you’re feeling — all on your device. No account required. Be first to know when Lirea is live.