The guy who does my hair in the Aveda Salon does not base the scalp before relaxing. Although, I make sure he bases mine, he makes it a point to let me know he doesn't normally base the scalp. I try to explain to him that it helps soothe any burning. He claims he makes sure it doesn't touch the scalp. There is no way you can apply a relaxer and not get some on the scalp. It seems alot of these egytian salons don't base!