This kit works well for me, but it's worth noting that I think that's partly because salicylic acid in general works well for me. Some people don't do well at all with that and end up always using benzoyle peroxide and that kind of thing. On one hand, that means this is gentler and won't likely cause more acne due to irritation. On the other hand, if you need really strong stuff, this may not do the job very well.