Go to the salon's site to see all about it. The dark is a BIG difference. The color is fabulous, but might take some time getting used to. It's very fall and my husband loves it. The salon experience was fantastic. I had never been before and got a tour of the place. They have robes for you to put on in a changing room (so you don't get hair or dye on your clothes), offer water (cucumber or lemon), have a "color bar" where you watch them make your color and the best part was the "lather lounge" where they wash your hair. She spent a good amount of time massaging my hair and even my neck. Definitely will go back again! Thanks Tristie for my great color!