1- Scorpion Venom
Price: $39,000,000 per gallon
The most expensive liquid on Earth comes from an animal. The eight-leg animal it has a pair of pedipalps and a segmented narrow tail often carried as a curve over the back ending with a venomous stinger.
They use their venom to kill or paralyze the prey, and as defense against predators.
From all the scorpion species, only 25 have venom that is deadly to humans.
The protein in the venom can be used as the treatment for rheumatoid arthritis, inflammatory bowel disease and multiple sclerosis.
With $39 million per gallon tops our list with the most expensive liquids in the world.