I have no idea whether or not bathing with soap and shampooing is harmful. All I can say is that from my own anecdotal evidence, I have extremely greasy skin, and if I go a day or two without showering, my forehead erupts in acne. If I go longer I develop acne all over my body.
I’d rather shower once a day with a mildly irritating shampoo than deal with painful, scarring, disgusting pustules of rotting sebum covering my body.
