Back in the day, when I was a pimply teenager, I used Neutrogena Oil-Free Acne Wash and it has 2% SA. Although, I think what anne7 wrote makes sense too. Maybe try Dermalogica's Medicated Clearing Gel, PCA Acne Gel - PHaze 35, NeoStrata NeoCeuticals Acne Treatment Solution Pads. They all have 2% SA, and the last two are pretty inexpensive.