I kinda need help, the stylist told me everything to buy and how it would help but I didn't ask if I needed to wet my hair first like I would do with a shampoo. Should I get it wet and then let it dry some til it's damp then put the mixture into my hair? I'm kinda new at this because I am just trying to fix my deep dark brown hair that was supposed to be medium brown, please help, thanks.
P.S. I have the developer (4 oz.) and I'm supopsed to add 1 oz. conditioner and the rest shampoo, so I just need to know if I wet my hair first