@Scrbblchick -- Yeah, the hair color people tell you to do the test for a reason. I've been coloring my hair at home for years and switched kinds. It was the same company, just a different formula. I did the allergy test and I'm glad I did! Turns out, I was really sensitive to something in the formula. I got a refund from the company. So glad I didn't use it. The skin on my scalp would have been a mess.