COSRX Toner Advice

If I'm not mistaken, it is called a daily toner. Though yes, the three main ingredients are exfoliating but the formulation is gentle and can be used daily. If you're not sure, use it 1-2 times a week and see how your skin reacts. If everything seems okay after a few weeks, increase to 2-3 times a week. Then repeat the cycle.

Yeah it may have low percentage that can be gentle to use everyday but you probably should use it 2 to 3 times week first to see if any reactions occur

as suggested in the name you can use it daily ! the percentages are very low so that you wont overexfoliate your skin ! i would even say it should be used daily since the result of the product were most likely tested with daily use

The percentages are extremely low in the toner to be designed for everyday use. You can use it less often if you feel it might be too much at first, but you could possibly see better results with everyday use.