If you use a flat iron to straighten your hair, or just a lot of heat appliances in general,  this is THE product that you must know about: I.D. Care. This Japanese-made “heat silk lotion” was originally recommended by my hair dresser and comes from the makers of my favorite shampoo and conditioner: Crede. Rub a tiny amount all through hair, focusing on ends, and use any heat-based appliance for instantly shiny, ubersoft, ultrastraight, perfect hair. I absolutely promise it works, and at around $16 for 6 ounces, this product is totally worth it.