Alberto-Culver is seeking to acquire Lamaur Inc. in a deal that would boost its presence in the market for hair-care products. Alberto-Culver already holds about 7% of Lamaur's stock and would pay $22 a share for the remaining 5.6 million shares. The offer values Minneapolis-based Lamaur at about $132 million. The company makes a wide range of hair-care products, a market in which Alberto-Culver is already a leader. Last year, Lamaur earned $5.1 million on sales of $126.8 million.