10.Lysergic Acid Diethylamide – $3,000 per gram
More commonly known as acid or LSD, lysergic acid diethylamide was discovered by Albert Hoffman in Switzerland in 1938 while attempting to create a substance useful as a psychological remedy.Instead, counter culture gurus such as Timothy Leary suggested that people try it as a method to expand consciousness, resulting in the drug becoming wildly popular in the 1960s. LSD creates powerful hallucinations and can result in a dangerous trip that results in psychological problems as well as serious physical injuries
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