I thought you were supposed to shampoo, deep condition, regular conditioner. I always figured that the regular conditioner would coat the hair and possibly close the hair cuticle and then the deep conditioner wouldn't be able to penetrait. Lately, I have been shampooing and deep conditioning and leaving the regular conditioner step out. Now, I am trying to think if that is what I used to do when I would use a regular conditioner and deep condition if I ever did. I really wish I kept a hair journal from the beginning as a reference. I could be getting this confused with the protein treatment rule. I remember learning on this board that protein treatments are supposed to be used on hair that was just shampooed so that it could penetrait.