Botox is a brand name of a toxin produced by the bacterium Clostridium botulinum. There are other brand names for botulinum, such as Xeomin. In large amounts, this toxin can cause botulism, which you probably associate with food poisoning. Despite the fact that one of the most serious complications of botulism is paralysis, scientists have discovered a way to use it to human advantage. Small, diluted amounts can be directly injected into specific muscles causing controlled weakening of the muscles.
The FDA approved such usage in the late 1980s upon the discovery that Botox could stop ailments like blepharospasm (uncontrolled blinking) and strabismus (lazy eye). Doctors have been using Botox for years to successfully treat wrinkles and facial creases. In April 2002, Botox gained FDA approval for the treatment of moderate-to-severe frown lines between the eyebrows – called glabellar lines. However, Botox is often used for other areas of the face as well.