After graduating from the University of Chicago in 1927,[2] Gidwitz worked at National Minerals Company with his brother, Willard. The Gidwitzes father had acquired the troubled beauty products company in settlement of a debt National Minerals owed the Gidwitz box company.[1]
National Minerals' main product was a clay for beauty facials. Gerald and Willard Gidwitz helped refocus the company's product line toward beauty parlor supplies, including permanent wave solutions and hair dryers. In the late 1940s the company began marketing home beauty products, including shampoos and hair sprays. The company's first consumer product was a hair cream marketed under the Suave label.
National Minerals was renamed Helene Curtis Industries in 1956, when the company went public. Willard Gidwitz ran day-to-day operations, while Gerald Gidwitz focused on acquisitions and creating other companies.[1] Gerald served as chairman of the company from 1952 to 1996, when it was bought by Unilever.[2]
Gidwitz also founded or acquired companies in other economic sectors. In the 1980s he launched a company providing building supplies, Continental Materials Corporation. He also bought two companies that manufactured farm equipment.