At the first use, it realizes that it not be used on hair that regraissent too fast. For my part, I need only one shampoo per week and again, it's because my hair is dry (I wash for the scalp clean and less dry). So this is me. Greasy feeling to the hair before blow drying dried applying and even after the straightener, always touch a little fat on the 1st day. As the days, having hair drying, it leaves a pleasant sensation of sweetness, a little better than other products bought in supermarkets (shea oil Dessange style you can put every day without greasing hair, that one, I have not called the next day). For cons, I do not think it makes smoothing. I have curly and frizzy hair and I had the same difficulty in smoothing with other products. I will continue to use it to feed my hair straightener before because I think it is fine for this (no need to return the next day) but smoothing issue miracle, I have yet to find the right product and if there is, thank you to give me his name.