Tools · Half-Life

See how it builds and clears

Pick a peptide (or enter a half-life), set your schedule, and watch the concentration curve — accumulation, steady state, peaks and troughs — over the week.

Set the timing model

Start with a documented preset or enter your own half-life.

Peptide (autofills a half-life — editable)Half-lifeDose frequencyWindow

Schedule curve

—steady-state peak

—steady-state trough

—time to ~90% steady

—peak-to-trough swing

The curve is relative concentration (accumulation shape), not absolute mg/L — we model first-order elimination only, not bioavailability, absorption, or tissue distribution. Human PK for many research peptides is poorly characterized; values marked estimatedare rough. Educational reference only. Planning the buy? Protocol planner →