The Marriage Ended. The Company Thrived.

How Brad Black and Susan Griffin-Black built EO Products into an all-natural skin care juggernaut despite getting a divorce along the way.

SAN RAFAEL, CALIF. — It is a bright September day and I am standing in a 45,000-square-foot space in Marin County that was once the “Star Wars” studio of George Lucas and is now the home of EO Products. It is hard to imagine a high-tech film studio being converted into the production facility for an organic cosmetics company — one that features products like a mint-and-coconut soap and sulfate-free shampoos and conditioners. There is something implausible about the optics of it, if nothing el...