Just used it in combination with the mask. When you wash it, you don't notice anything different from regular shampoos, unlike the mask where the smoothing is noticeable. Well, I have curly hair that I straighten after every wash. I have never felt my hair so smooth, so lightweight, and so shiny. Neither the hair botox treatments that I paid a lot for, nor the shampoos with keratin that were recommended to me at the hair salons, nor have I ever left a salon with such lightweight hair. I don't know if it's the mask that gives this result or the shampoo, but the combination of the two together is something else! I will see how it works in the coming days and will write more impressions. Those of you with curly and heavy hair like mine will be saved! Don't expect to get rid of the blow dryer, but it will make it so easy for you that you will be impressed! I highly recommend it! I bought the 1000ml size. It's gigantic and at an excellent price!