First synthesized in 1938, LSD (lysergic acid diethylamide) is a highly potent hallucinogen. A hallucination is seeing, hearing, feeling, tasting, or smelling something that looks real but is not. Commonly called acid. LSD is synthesized from lysergic acid found in ergot, a fungus that grows on rye and other grains. https://kingdomplugs.co.uk/?s=LSD&post_type=product