How long does a compound stay in your system after you stop?

As a rule of thumb, about five half-lives, when a half-life has actually been measured. That is roughly 97 percent gone. The table on /cycling works out that figure from the published half-lives already on each profile. Where none has been published, that page says so instead of guessing. Leaving your body is not the same as your body's response going back to normal, and it is not a cycle length.

Full cycling page: what was tested versus assumed

Educational use only. This database summarizes published research and is not medical advice. Where a dose appears it is a record of what a trial or clinic ran, or what people describe doing, with its source attached. Nothing here is a recommendation for personal use.

Part of cycling and clearance. Whether peptides need a break, what a half-life actually tells you, and where a real cycling mechanism has been measured. Full detail at /cycling.