Katie Rodan And Kathy Fields

The creators of Proactiv have another smash hit.

- Arianne Cohen

After 35 years as business partners, dermatologists Katie Rodan and Kathy Fields still do everything together— including interviews. “Last week a woman recognized me,” Fields says. “She said, ‘You’re Katie Rodan!’ I said, ‘Close!’ ”

They’ve reached street-level celebrity thanks to their smash-hit skin-care line, Proactiv, which sells about $1 billion in products a year through mall kiosks and infomercials featuring the likes of Katy Perry and Justin Timberlake. Their latest line of treatments, Rodan + Fields, hit $1.5 billion in sales in 2017—largely through consultants who sell to their friends and contacts, like social-media-era Mary Kay ladies.