I know, I know....I only need a hard protein treatment every 6 weeks or so. But I just bought this a few days ago and used last night. I had used it many years ago with a stylist and remembered liking it a lot. Then I bought some through my friend's aunt (a stylist) a few years back, but I LOST my mind and threw the bottle away when I moved (thought it had gone bad...lol). Anyway, my hair is suffering from SMS (super moisture syndrome) lately. I've been using light proteins almost weekly, but still my hair has been slightly on the mushy side. I'm a fine haired girl, so I really cant be having this b/c it causes unsessary breakage. Anyway, I think at least for the time being (with this protein deficit) I want to use this mothly, or even more frequently (perhaps in a mix). Who uses this treatment regularly with great results???