Chemical Exfoliator?

I would use the COSRX or Some by Mi 2-3× a week and the pad 1x a week when not using the toner.

I wouldn't use them together. The Cosrx BHA Liquid is potent and I heard the Neogen one can be quite strong as well, what with it having both chemical and physical exfoliation. The Some by Mi is not as strong as the Cosrx, but can be harsh if you layer with another exfoliating product. Just choose one type and use them sparingly.

Ooood it could be too much exfolliants, just choose one of the products to use. or alternate theirnusage

Don't use them together at once. It's too much! I have the BHA liquid, and it's quite strong by itself, in my opinion. I think only one of these products is enough. The best choice would be the toner because it should be mild enough for daily use. Of course, in the beginning, use it only about twice a week, but then you can increase the frequency if needed.

definitely it will be a big no no for me. it may wreck your skin barrier but if you skin is resilient then you may try but at your own risk