A cleanser is a skincare product used to cleanse the skin by removing dirt, oil, and makeup. Cleansers come in different forms, including foam, gel, cream, oil, exfoliating, and cleansing balm. The type of cleanser that's best for you depends on your skin type and skin concerns. For example, those with oily skin may benefit from a foam or gel cleanser, while those with dry skin may prefer a cream or oil cleanser. It's important to choose a gentle cleanser that won't strip the skin of its natural oils and cause irritation.