Half-Life Visualizer
See how peptide blood concentration rises and falls over time. Overlay up to 3 compounds to visualize stacking timing.
Blood Concentration Over Time
Understanding This Chart
The curve shows estimated blood concentration over time using a two-compartment pharmacokinetic model. After each dose, concentration rises to a peak (Cmax), then declines exponentially based on the compound's half-life. With repeated dosing, concentrations accumulate until reaching a steady state — where the amount eliminated between doses equals the amount administered.
The peak/trough ratio indicates how much concentration fluctuates between doses. A lower ratio (closer to 1) means more stable levels. Long-acting peptides like semaglutide maintain very stable levels, while short-acting compounds like CJC-1295 (no DAC) show dramatic peaks and valleys — which is often intentional for pulsatile GH release.