Givenchy's highly popular lip balm, "Rouge Interdit Balm" No. 10 This sheer black lip balm appears black at first glance, but reacts to the pH of your lips, transforming into a unique shade of pink just for you. It has a high moisturizing effect and is an excellent lip care item that smooths the lips. Recommended for daily use or as a gift! I used it once, but I'm selling it because I don't use it.