Missha had 50% discount across the board and I couldn't miss this opportunity to stock up. I started using this toner since 3 years ago and I noticed huge improvement on my skin. I feel like this is the ultimate toner that suits my oily skin and I have never tried anything else since. At first, to clear up my blemished skin, I used the Some By Mi toner but after it cleared up (about 6 months), I only use Missha Time Revolution.