I am extremely picky when it comes to using their brand-shampoo/conditioner in one. I bring my own travel size bottles of pantene. If your hair gets knotty from the water and sea air like mine does, I would recommend to bring a separate bottles of shampoo and conditioner. I just purchased these travel size bottles from bath and body works that are shower gel and shampoo in one. Hope it works well. I will bring pantene conditioner as well and detangler spray for my hair.