The instructions were to use this ampoule every night for a week. A full 2ml vial was really too much to cover my entire face. So I applied the excess product on my neck and arms :) There wasn't any fragrance, only detected the scent of caramel in it- which is an ingredient in the ampoule.
I've taken a photo of my bare face before the whole treatment. Hopefully by the end of 7 days, there would be some difference in my skin tone.
Will update again soon!