I see some shavers who spend time pre shave exfoliating with various products and methods. Being a face latherer, I have always been puzzled by this. My daily shave is done with cold water in 4 passes. At the end there is plenty of dead skin in the sink water to know I have exfoliated my skin. Seems wetting my face before each pass and face lathering up when combined with actually shaving does the job regarding exfoliating. No extra steps or product needed.
Bob
Bob