Botulinum Toxin (aka Botox): Canada-based dermatologists Alastair
and Jean Carruthers discovered that treating patients with
blepharospasm, a condition involving uncontrollable eye blinking and
spasming, with a diluted solution of botulinum toxin, the lines around
their foreheads were erased. It turns out many, many more people suffer
from hating their frown lines than from blepharospasm.