Frequently Asked Questions Tweet | No one logged in. Log in Most frequently asked questions If you have a question that isn't here, just ask! Can I wear a relaxer and permanent color without losing my hair? How do I stop my natural hair from drying out? How often should I have my hair relaxed? In your book, you state that we should use a shampoo with the same pH level as our hair, 4.5-5.5, no more than 6. I am finding that most shampoos do not list the pH level, but some say "pH balanced" and "normalizes pH". What do these terms mean? What is the purpose of a hair and scalp oil, when should it be used, and how do I choose the oil for my hair that won't give my hair the greases? What is the purpose of a hair moisturizer and when should it be used?