I have gone through approximately 4-5 bottles of this ampoule and it is a Canadian Winter essential. The high amount of ceramide keeps my skin barrier strong during the cold and dry months. I also really like the niacinamide which gives a noticeable brightening effect. My skin gets plump and glowy after using this. The 100ml size is really great too, and lasts me around 4 months with daily use. The ampoule is scent-free and has a thick consistency.