Hi there, I am a Brazilian Blow Dry Therapist and I can only reiterate what lomi-lomi has told you. The purpose of a BBD is to make your hair more manageable, shiny, healthy and in some cases straighten it. All of my clients still have to blow dry their hair, as do I, but the beauty is that after a BBD it takes considerably less time. Another big benefit of a BBD is that I, like a lot of my clients, have been able to do away with the straightners. Email me at firstname.lastname@example.org if you have any further questions.