Exfoliating/Exfoliating toner

Your exfoliating toner should already have a chemical exfoliant. Do you mean using a chemical exfoliant in a different form like maybe a serum-type or a peel sheet?

Yes you can. The times you used is depends on your skin's tolerance also

It depends on your skin. But if youre a starter, better build it up little by little because it can damage your skin.

U could if u want to as long as skin could tolerate that 😃😃

Your exfoliating toner contains a chemical exfoliant already. You can use it up to everyday, but generally, people use them 2-3 times a week to not over exfoliate or irritate their skin. You can use a hydrating toner every day.