Due to my curly hair, I used to get straightening treatments every 3 months and use a flat iron daily, which left my hair worse than a broom. But this treatment definitely improves it! I apply it mainly to my bangs and ends, then rinse. The difference is noticeable right from when I'm combing after washing. The large size and pleasant scent make it easy to use without worry.
I haven't found any drawbacks yet. Maybe I'll discover some after finishing the whole bottle.
