I'm not even sure what this product does, but my skin seems to like it. I introduced it as part of an elaborate new Korean skincare routine (definitely played with fire trying like 6 new products all at once...) and as a whole, my skin has done a total 180. AKA I can't really single out this toner's effects, but I will say, out of the many products I bought, it was the least outstanding. But still great lol. Sorry for the confusion.
It has a thick, gel-like texture so I don't use a cotton round or anything to apply it. Just my hands. It adds light, soothing hydration (amazing for the summer) and plumps my skin. Doesn't make it sticky, doesn't make makeup pill up or get gross. Yeah, the pH isn't right for exfoliation so I'm not sure why that's a selling point, but whatever. It feels absolutely amazing on my neck and chest though, an area I have never been able to use ANY products on because the skin there would always react unfavorably. That in and of itself, makes this stuff precious to me.
tl;dr version: it's good for light hydration and prepping your skin, very affordable, doesn't exfoliate. I probably won't reorder this in favor of an actual exfoliating toner since my skin loves that, but I would still recommend it.