I liked the straight finish sealer the first time I used it and straightened my hair with the flat iron. when I used all three products to straighten my hair, it looked greasy and did not feel as soft. Using the shampoo and leave in conditioner together made my hair look fuller and it blow dried faster too. I was not able to use the finish sealer as I was pressed for time, but my hair still maintained the straight look with just blow drying it that day. Overall the products help to maintain a straight look with a hair dryer as well as a flat iron! You also do not need to use very much to get the straight look that you are looking for after all.