Understand contact time and location
A cleanser is rinsed away; a toner or serum is generally left on as directed. A spot formula is local, while a body wash is intended for a larger nonfacial area. The product label establishes frequency, application site, and cautions. A pre-soaked pad also adds wiping, so use a light hand rather than repeatedly rubbing skin. These formats may be sold next to each other, but they solve different routine problems. Product names may use 'BHA' without stating salicylic acid in a way that is obvious from a category tile. Verify the actual ingredient declaration on the item you buy.