Sydell L. Miller, a self-made beauty mogul who went from the stay-at-home wife of a Cleveland salon owner to a Palm Beach mansion so immense that it was said to take an hour to walk through all of its rooms, died on Feb. 25 at her home in Cleveland. Her daughter Stacie Halpern confirmed the death. Ms. Miller had various health issues, including serious heart problems dating to the early 1990s; Ms. Halpern said that a combination of factors had recently caused her mother’s health to decline. Ms. Miller and her husband, Arnold Miller, created two dominant brands: Ardell, the industry standard for abundant and shapely false eyelashes, and Matrix Essentials, which has often been described as the nation’s largest manufacturer of salon products and was the primary source of Ms. Miller’s fortune. In 1994, two years after her husband’s death, Bristol Myers Squibb bought Matrix from Ms. Miller for $400 million.

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Persons: Miller, Stacie Halpern, Halpern, Arnold Miller Organizations: Bristol Myers Squibb Locations: Cleveland