The McKennaii Magic Mushrooms are a tribute to Terrence McKenna. They might be even stronger than the popular, but challenging mushroom to cultivate: Hawaiian (Copelandia cyanescens). No doubt the McKennaii Magic Mushroom Grow Kit grows one of the strongest cubensis listed in our magic mushroom catalog. McKennaii is for the more visually interested. This Psilocybe cubensis McKennaii is named after him and is a relatively new strain. The exact origin form this strain is unknown. Because of its extreme strength, it is more popular then other strains! If you are looking for a powerful visual and intense philosophical trip, the McKennaii is the best choice. While these mushrooms are slightly more difficult to grow, it is our best selling grow kit. The active substance in McKennaii magic mushrooms is a plant alkaloid called psilocybin. Psilocybin is a tryptamine that is chemically similar to the human neurotransmitter DMT (dimethyltryptamine). DMT is one of the strongest visionary psychedelics, which occurs abundantly in nature (trees, grasses etc.) and is easily broken down by the body’s MAO enzymes, leaving no toxic byproducts behind.