Models first-order exponential decay based on published or estimated half-life values. Real serum concentrations vary with individual pharmacokinetics, route, injection site, and metabolism. Use for educational reference only — these are theoretical curves, not clinical data.
= 0.25 mg
Serum Level Curve
Clearance Reference
BPC-157 — t½ = 4.0h
About Half-Life Calculations
This calculator models first-order exponential decay, the standard pharmacokinetic model for most peptides. The formula used is: C(t) = C₀ × e^(-λt), where λ = ln(2) / t½.
Accumulation occurs when the dosing interval is shorter than the time needed for full clearance. At steady state, the peak level is the single-dose peak multiplied by the accumulation factor: 1 / (1 − e^(−λ × interval)).
Half-life values shown in presets are literature-derived estimates for subcutaneous administration where available. Actual values vary with individual metabolism, body composition, injection depth, and other factors.