I bought 5 salicylic peels at a dermatologists office, and I have done 4 in about a six week period. 20-30% strength.
I would just go on Amazon and buy some of the solution and do it myself if I could go back. It's pretty easy to do and the solution costs $30 for 30% strength.
My acne is mostly gone and my fave is healing. I'm actually pms-ing in the after pics so my skin will look even...