Peptide Tools v1.0
Half-Life & Washout Estimator
Peak concentration · steady-state · clearance timeline for any peptide
Compound Name
Half-Life
Dose Per Injection (mg)
Dosing Frequency
Total Doses Given
How many injections have been administered total.
Hours Since Last Dose
Time elapsed since most recent injection.
Time Level Progress Status
How to Use This Tool
Washout time is when a compound drops below 1% of peak concentration. This typically requires about 6.64 half-lives. The tool calculates when the peptide clears based on its half-life and dosing schedule.
Calculations assume steady-state pharmacokinetics. Individual factors like kidney function, body composition, metabolism, and injection site absorption can affect actual clearance. Always verify with appropriate testing.
Use the preset buttons above for common peptides, or check published pharmacokinetic studies for your specific compound. Half-life values can vary based on route of administration (SC vs IM).
Yes, as long as you know the elimination half-life. This calculator works for any compound with first-order pharmacokinetics. Results are estimates only — always verify independently.
!! Research Use Only — Not Medical Advice This calculator is for educational and laboratory research planning only. Results are theoretical estimates based on pharmacokinetic principles. Verify all calculations independently. Consult qualified professionals before making research decisions.
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