Honestly as someone with oily and dehydrated skin this didn't irritate me skin And I also have somewhat sensitive skin and a compromised barrier safe to say it didn't damage my barrier and within a Week I saw clear results in my comodones and acne ,I Would suggest for someone who's just trying out this toner or never really used an exfoliating toner with such potency do a patch test and even after that use only once or twice a week and then change it to 2 or 3 times a week when u feel like u skin has adapted to this toner don't exfoliate more than 3 times a week because it can eventually damage your skin barrier and with damage skin barrier don't use it until your barrier is alot better or maybe once a week if your skin tolerates it
