I want to apply a hair keratin treatment at a salon to my hair. They say the hair will remain shiny and smooth for 6-8 months. My aunt did it, and her hair looks much better than it used to. My hair is not curly but I do get frizzes and what so which I hate, and my hair is generally dry. I want to do keratin but I heard that the smell of the smoke that rises when the treatment is applied to your hair when the hair straightener is used to straighten your hair isn’t good and may be health damaging. I need your feedback please. Thanks!