Psilocybin, in 10mg or 25mg doses, has no short- or long-term detrimental effects in healthy people by Kings College London
https://www.kcl.ac.uk/news/psilocybin-in-10mg-or-25mg-doses-has-no-short-or-long-term-detrimental-effects-in-healthy-people
https://www.kcl.ac.uk/news/psilocybin-in-10mg-or-25mg-doses-has-no-short-or-long-term-detrimental-effects-in-healthy-people