NEW YORK — Revlon is buying Colomer Group, which sells hair dye and other products to beauty salons, for about $660 million, saying the deal will help it reach new salon customers.

The transaction reunites Revlon with its former professional products division, which the beauty products company sold to CVC Capital Partners in 2000 for about $315 million. The private equity firm is still Colomer’s owner and is selling it to Revlon.

Revlon’s stock climbed nearly 7 percent in Monday trading and hit a 7-year high earlier in the session.

Spain’s Colomer markets products under brands such as Revlon Professional hair care, which it currently licenses from Revlon Inc. It also sells shampoos, conditioners and other hair products to consumers under the Creme of Nature brand and also sells nail polish and body lotions. About half its sales are in Europe, the Middle East and Africa, while 40 percent come from the U.S.

Revlon sells Revlon and Almay makeup, Revlon ColorSilk hair dye and other beauty products. The New York company is looking to strengthen its sales outside the U.S. Like many consumer products companies, it has had to deal with the recession in Europe, which has hurt spending.

Colomer’s “presence in the professional salon channel, which Revlon currently does not serve, will expand our product offering and enable us to reach new consumers,” said Revlon CEO Alan Ennis in a statement. He added that the deal could provide “meaningful” cost savings opportunities.

The purchase is expected to close in the last three months of 2013 and add to Revlon’s earnings in the first year after it’s complete.

Last week Revlon reported that its second-quarter net income more than doubled, bolstered by a large insurance gain related to a fire that destroyed a Venezuelan plant.

The company’s shares added $1.66 to close at $26.16 Monday, peaking earlier in the morning at a 7-year high of $26.57. The stock has gained 77 percent this year.