I have oily sensitive skin with large pores,on summer days my pores got bigger and my face became shiny.I use this essence in the morning with AHA Whitehead esence in the evening.After just 2 weeks i see such a big difference on my skin!Skin texture is silky,very soft,mt face is with even tone,blackheads are vanishing(just black on the top),pores are shrink.I can't belive how good is this essence!Really works,reccomend it with two hands!Cosrx,great products!!!