Does stopping a peptide cause withdrawal?

True withdrawal, meaning harm from stopping, has not been measured for the peptides in this catalogue. Something related but different has been measured for the GLP-1 drugs. In the follow-up to the STEP 1 study, people who stopped semaglutide gained back about two thirds of the weight they had lost within a year. That is the original condition coming back once the drug wears off. It is not a withdrawal problem. It is the real, evidence-based reason these drugs are approved for use without breaks, not in cycles. Full detail 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.