Buy Mescaline Peyote Online. Mescaline causes color enhancements, euphoria, and an increase in introspection. Users often report having personal epiphanies on while on the drug. When ingested, the peyote cactus is bitter and can commonly cause nausea and vomiting. Mescaline, like other psychedelic drugs, has a potential for psychological addiction. However, it isn’t chemically addictive and has a very low physical risk for healthy users.