Psilocybin is hallucinogen that works by activating serotonin receptors, most often in the prefrontal cortex. Psilocybin is consumed for their hallucinogenic effects and it belongs to a group of drugs known as psychedelics, because of the changes experienced to perception, mood and thought. Psilocybin is a proven drug with various health benefits and has low level of toxicity and dependence.