I was really looking forward to using this product, because everyone else was ecstatic about it, and yes, if we're talking about the skin pH, it's great, but i didn't notice any big changes on my face. Of course, it can (and probably is) because of the fact that i'm using it only for maybe four days, but still, I should see some changes by now, right? Anyway, great low pH product that doesn't cause breakouts for me, and makes my skin look a bit brighter maybe. Recommend, but I think it's not worth the hype.