The alkaline ingredients in Ivory Soap reach into the skin and dissolve the fats and ceramides that lock moisture in and keep the skin soft and flexible. Tight skin constricts pores, locking oil and acne bacteria inside. If you wash your face with Ivory Soap once or twice a day, you almost certainly will have no big pieces of dirt or grime lurking in enlarged pores, but you are likely to have an ongoing problem with whiteheads and blackheads, and the constant irritation will also make pimples redder and more inflamed.
Alpha hydroxy acids. Two types of alpha hydroxy acids that are used in nonprescription acne products are glycolic acid and lactic acid. Alpha hydroxy acids are synthetic versions of acids derived from sugar-containing fruits. They treat acne by helping to remove dead skin cells and reduce inflammation. Alpha hydroxy acids also stimulate the growth of new, smoother skin. This helps improve the appearance of acne scars and gives the impression of smaller pores.
Retinoids and retinoid-like drugs. These come as creams, gels and lotions. Retinoid drugs are derived from vitamin A and include tretinoin (Avita, Retin-A, others), adapalene (Differin) and tazarotene (Tazorac, Avage). You apply this medication in the evening, beginning with three times a week, then daily as your skin becomes used to it. It works by preventing plugging of the hair follicles.