LOreal Professional Majirel Hair Color 7.0 7NN (O4) LOreal Professional Majirel Hair Color 7.0 7NN (O4) offers a rich double brown color to your hair. It is one of the prettiest colors that would easily cover your gray and white hairs effectively with extra conditioning properties. The effective NN-series of this product will make your hair damage-free and silky. This would provide a long-lasting color to your hair without making it brassy.