Patricia de Nicolai, French perfumer who created the Nicolai perfume brand with her husband 25 years ago, poses for Reuters as she works in the brand's laboratory in Paris June 23, 2014. Seaweed may not be the first ingredient that springs to mind for top perfume. But certain types of algae are among the obscure ingredients to which perfume-makers are turning to preserve the scent of some fragrances in the face of new EU anti-allergy restrictions. Perfume creators love oak moss for its woody, earthy notes which give it depth and help make the scent last longer. But on the grounds that 1-3 percent of the EU population could be allergic, Brussels is banning two of its core molecules atranol and chloroatranol. Perfume makers will only be allowed to use oak moss from which these two molecules have been removed, turning it into a much lighter, emasculated version. Picture taken June 23, 2014. REUTERS/Philippe Wojazer (FRANCE - Tags: BUSINESS SOCIETY)