Estee Lauder Co, Inc. is offering some U.S. employees voluntary buyouts as it works to improve profitability, a spokeswoman confirmed on yesterday. The company is facing pressure from competitors in lower-priced stores, such as Procter & Gamble Co.’s Olay products and Revlon Inc.’s new Vital Radiance line aimed at mature women. Last month, Estee Lauder said it would sell its Stila cosmetics brand and take other actions to improve profitability. The company has had four simil...