First time I used it after dying hair with henna. Hair was completely damaged, extremely dry so I had to had a haircut, more than 5 cm were cut off. Later on when hair was restored and healthy, I tried the treatment again, no henna dye for 2 months. Hair became nice and soft but not perfect. It makes the color a lot lighter (see picture). After the first wash, the hair is wavy again and looks damaged. Very disappointed. I won't be using the rest of the bottle content.