For research use only — not intended for human consumption. All content is educational.

Peptide half-life calculator

Select a peptide and enter your dose to see how much remains in your system at any point in time. Uses published pharmacokinetic half-life data.

Half-life: 4 hours

0h24h

Remaining

50%

Amount remaining

125 mcg

of 250 mcg administered

Suggested redose interval

8 hours

2× half-life rule

Research use only. This calculator is provided for educational and research purposes only. It does not constitute medical advice. Consult a licensed physician before use.