Louis Guarneri

American Culture, now bottling its own future

By GREGORY ZELLER // From the Close Call file comes the story of American Culture, a Huntington Station hair-care manufacturer that nearly gave Long Island the brush-off. Cofounder Louis Guarneri didn’t want to leave LI. He’s the third of what he hopes will be four (at least) generations in the beauty business, all on Long Island. He met his wife and cofounder, Doreen, when they were 13, and they dated throughout their years at Cold…