Lacroix was a prolific designer of lighting, wallpaper, bookbinding, furniture, and interiors; in 1924, he began working for couturier Madeleine Vionnet as a designer of dresses, handbags, and costume jewellery; soon after, he decorated and designed her private residence. Jean-Michel Frank and Jean Dunand commissioned his designs. He designed furniture and chairs in Cubist forms for himself, produced by cabinetmaker Régamey. He had clients, including Damon, for whom he created many Modern lamps in the engraved mirror and frosted glass tubes. He suggested that his lighting had no purpose other than to be harmonious with Modern interiors and predicted that lighting fixtures would become obsolete; he executed practically every model of domestic lighting, including table lamps, illuminated ceilings, and picture frames. Most of his polished and matt-finished nickel-plated copper lamps incorporated glass; some were produced only in metal. Damon used its special enamel-diffusing glass or the plain frosted variety. His articles were published in Lux in the late 1920s. In 1945, he became a member of UAM (Union des Artistes Modernes); pursued lighting and interior design independently.