Botox was introduced in the late 1980s by eye doctors who began using it to treat optic muscle disorders. In 1987, two Vancouver physicians — Jean and Alastair Carruthers — accidentally discovered the toxin’s cosmetic properties.
Botox essentially paralyzes the muscles that cause wrinkles by blocking the release of acetylcholine, a naturally occurring chemical that causes muscle contractions that create wrinkles.
This accidental discovery changed the face of beauty. The FDA approved botulinum toxin type A (Botox Cosmetic) for the treatment of moderate-to-severe frown lines between the eyebrows in 2002, and its popularity has soared ever since.
There are now three botulinum toxin type A toxins approved for cosmetic use in the U.S. and even more in the pipeline; including topical forms! Let’s break down the finer points of each.