@abdullah:Yes, any cleanser containing 2% SA and making Acne claims under the FDA monograph would be an OTC. That is primarily for marketing purposes so you can market it as an Acne OTC product.
@Abdullah People with acne will normally use a suite of products, including leave-on products which is where they get the benefit, from the leave-on products, not the cleansers. But, adding SA to a cleanser certainly will not hurt, it just won't do very much in terms of effectiveness in delivering an active against acne.
@abdullah:The average contact time of a surfactant-based face wash is 20 seconds prior to rinsing. Unless the active has an impact within that 20 second time frame, it generally will not have much of an effect. Placebo effect.
@amitvedakar - I doubt it. The surfactants are emulsifying oils so most of the salicylic acid will be tied up in a micelle & not in contact with skin.
@Abdullah In order for SA to be effecive in an acne product, the SA needs to actually penetrate into the hair follicle. That simply is highly unlikely to happen in a cleanser.
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