Hair salon operator Regis ( RGS) said Wednesday that its revenue for the fourth quarter increased 7.2% to $636 million. The company's same-store sales for the same period increased 0.1%. Analysts surveyed by Thomson First Call were expecting revenue of $646.5 million in the most recent quarter. Service revenue increased 8.9% to $436.7 million, product revenue increased 4.6% to $179.2 million and revenue from royalties and fees fell 4.2% to $20.2 million in the fourth quarter. Shares fell 30 cents to $35.30.