Hair Color 7n Ready, folks? Quirk those brows and roll up your sleeves as we unravel the mysteries of the oh-so-trendy hair color 7n. A shade that’s so what-the-hell-is-going-on thrilling, it feels like watching an Agatha Christie novel, but instead of Hercule Poirot, we have you playing the detective. What’s the big deal with 7N,...