3- Lysergic Acid Diethylamide (LSD)
Price: $123,000 per gallon
Lysergic Acid Diethylamide is also known as LSD.
The psychedelic drug is well-known for its psychological effects which can include altered thinking process, closed- and open-eye visuals, synesthesia and many other side effects.
Used by many people as a recreational drug and as an agent in psychedelic therapy, LSD is a non-addictive drug.
Unlike the other drugs out there, LSD is not known to cause brain damage, and it has extremely low toxicity relative to dose.
Not sure you want to buy a gallon of this stuff, but if you want you can have it for $123,000.