As a sidenote, Herbalife started as a pyramid scheme but has evolved its business model beyond it. This article on the fight between Bill Ackman and Herbalife (

As a sidenote, Herbalife started as a pyramid scheme but has evolved its business model beyond it. This article on the fight between Bill Ackman and Herbalife (http://fortune.com/2015/09/09/the-siege-of-herbalife/ http://fortune.com/2015/09/09/the-siege-of-herbalife/) is a good summary of Herbalife's history and its current approach.