Clearance calculator
Pick a peptide and we'll show you how long it takes to clear your system, based on its known half-life.
Frequently asked questions
Why 5 half-lives?
It's the standard pharmacology rule of thumb: after 5 half-lives, a compound is considered practically cleared from the body (~97%). It's the same reference clinical calculators use, not a made-up figure.
Why don't all the Library's peptides show up here?
We only include ones with reliable half-life data. When that data doesn't exist (or is too scattered), we'd rather leave the peptide out than give you a made-up estimate.
This tool is for informational and educational purposes only. It is not medical advice and does not replace a healthcare professional. Peptides and GLP-1 medications should be used under medical supervision. Testosterone replacement therapy (TRT) is a prescription hormonal treatment: it should only be started after lab-confirmed deficiency and with ongoing medical follow-up, never on your own. Always consult your doctor before starting or adjusting any protocol.
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