Launched in 2010, New York- and Paris-based Atelier Cologne produces fragrances based on the traditional orange-lemon-bergamot cologne blend, established over 300 years ago in Germany. The twist is that its perfumes are extremely long-lasting—each containing significantly higher concentrations of essential oils (12-20 percent) than standard eau de cologne, which typically has between 2 and 5 percent. "We challenged our perfumers to go heavy with a lot of citrus, but to prolong the effect through innovative heart and base notes to help it last," explains co-founder Sylvie Ganter.