I use a whole lot of Cosrx products so it is hard to say anything much about the effect of the toner itself. But I believe using more products from one line might give better effects than using many different brands. One thing I love about it is that it goes a long way. Using it once a day it lasted me for almost a year. If I'm not able to find anything that would beat this, I think I will keep on purchasing it as I'm sure I'll keep using other corsx products as well.