I have really bad acne last time, and my face was literally filled with acnes and it's totally digusting! I tried a lot of products and they all never worked. I went to a number of beauty parlous as well, and that did help a little, and then my friend introduced me to Neutrogena's Salicyclic Acid foam wash.
I was a bit skeptical initially, because I never trusted commercialised products! I tried it for a number of days, and only after 2 months I was able to see the difference. It doesn't help the scarrings but it definitely help to control the breakouts. I cannot say that it completely wipe out all the breakouts because I still get the occasional one or two, but it definitely controls the break out to the minimum!