As Sean remarkably wrote it : YMMV ! I, for one, have a skin that stinks if I don’t wash (with soap) every 2 days. Regarding soap, I have found that very natural soap (that is soap obtained by oil and lye, i.e. alep soap and/or marseille soap) is way better for me than whatever P&G or Unilever are trying to sell us. Most ‘brand’ soaps either dry my skin or give me acne.