How long will psilocybin stay in urine?
Psilocybin is actually never in urine, most of the psilocybin in magic mushrooms is converted into psilocin, the main psilocybin metabolite, within the first hour after ingestion. Psilocin is detectable in urine 1-3 days after eating the mushrooms, however most standard drug tests (for jobs or school) don’t test for it.