How is urea a neurotoxin?

No

Neurotoxins are substances that affect the nervous system of animals, insects, etc, usually resulting in partial paralysis or death, depending on the substance itself. Although they can be man-made,...

neurotoxin, a toxin that acts specifically on nerve cells, usually by interacting with membrane proteins such as ion channels

Urea (CO(NH2)2; compound formed in the liver via the urea cycle and excreted by the kidney; principal end product of protein catabolism)

My area is in cliff ton and i buy what ever i want its at staples