Small doses of psilocybin are very difficult to detect. Personally I barely find it barely noticeable at 1.5g (in the dried shroom measure). Microdose levels ar

Small doses of psilocybin are very difficult to detect. Personally I barely find it barely noticeable at 1.5g (in the dried shroom measure). Microdose levels are 1/10th of that, and often much lower. Give someone a so-called microdose and it is unlikely that a placebo vs actual study would actually find that people could detect it.