There is simply no reason to shower every single day. Doing so could do more harm than good to your skin. According to Very Well Health, once a week should suffice:
There really isn't a magic number that is right for every person. But, there is a general consensus among dermatologists that as a society we shower too often. Dermatologists vary in their recommendations, so advice runs the gamut from showering once or twice a week to once every two to three days.
As long as you are consistently washing your hands and cleansing your face, skip the full shower. As writer Angela Palmer points out, showering too often strips your skin of natural oils, leaving it dry and exposed to bacteria.
Others are horrified to hear that some people don't shower once a day–if not twice a day. If you exercise, showering once a day is a must. Or if you live in any sort of hot, humid climate–can you imagine getting into bed without washing the day's dirt and grime away? Absolutely not.
Whether you're washing your makeup away, washing your hair, or simply getting clean before bed, showering every day is a must.