im sure if it was possible for it not to take hours, a hair dresser would employ those methods and be able to see twice the number of clients per day wanting that service and increase their income.
Well I use very little product. I am natural, I cut all my relaxer out my hair last Nov-Dec 2010. I was relaxed for three years.
What I do is wash, deep condition with a moisturizing silicone based conditioner. Then I place my products in [garnier leave in spray, any liquid heat protector, a dab of chi silk infusion], non heavy products....no creamy stuff except my jane carter solution foam wrap lotion. My hair must swing.Then I part my hair in sections, detangle each section and braid or twist those sections. I blow dry with a small paddle brush until roots are straight or sometimes I just use the tension method to get my roots straight....once I am done, I flat iron on high heat, bump wrap or pin curl and then my hair looks like my avi....
there are so many threads on this if you want more answers....