Is half-life the same as being out of your system?

No. Half-life is the time for the amount in your body to drop by half. The usual rule is that after about five half-lives, roughly 97 percent is gone, which is what people mean by out of your system. That is an estimate for one dose. It does not tell you whether your body still responds the same way after repeated doses, and it is not a cycle length. A compound can clear in minutes and still belong to the one family where the body has been shown to get used to it. Another can linger for days with no such measurement. Full table at /cycling.

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.