The "non-bathing" trend is based on no longer rinsing oneself every day. Dermatologist Stefanie Derendorf advised to shower less, especially in winter, and to use moisturizing soaps.

Stars such as Jake Gyllenhaal, Mila Kunis and Ashton Kutscher have publicly acknowledged taking fewer showers. Seven to ten minutes is considered the ideal shower time. With a few tricks, you can even save energy while showering.. For many, the morning or evening routine includes a hot shower.