Everyone’s skin is a little different. Start off once every other day, most people tolerate the Salicylic acid well and can apply to trouble spots as part of their evening routine. Exfoliation is a process that takes some time. The cleansing process scrubs your clogged pores that are embedded with dirt and dead skin cells. As the top layers are removed, this congestion inside the skin may emerge in the form of blemishes. The entire process takes several weeks to purge the skin, but afterwards skin should be noticeably smoother and cleaner.