Botox Gets Approval for Treating Crow’s Feet

September 16, 2013 |  by

On September 11, 2013 the U.S. Food and Drug Administration (FDA) announced its approval of Botox (onabotulinumtoxinA) for the treatment of wrinkles at the corners of the eyes, commonly called crow’s feet.

Crows’ feet – or lateral canthal lines, as they known scientifically – are thought to be caused by repeated muscle contractions associated with making facial expressions, like smiling. Over time, the folding of the skin caused by these contractions creates permanent lines in the skin.

Botox is made from a toxic protein called botulinum which is produced by the bacterium Clostridium botulinum. In large doses, this toxin causes botulism, a disease which can cause muscle paralysis. In the small doses used in Botox, however, it can temporarily relax the muscles responsible for facial wrinkles, leading to an improved appearance.