How often should I change my blades? Nick M 31 July 2020 18:16 Updated The lifespan of our blades will vary based on your hair type, shave schedule, and blade care habits. On average most folks like to replace their blades once every 6-8 shaves, or simply once they become dull. Articles in this section Modifying my Shave Plan Shipments Canceling my Shave Plan Shipments How does your Trial Set work? What's the difference between a Truman and a Winston? How often should I change my blades? How long will it take my order to arrive? Can't login or forgot password? Where do you ship? How do I change the country (US, UK, CA) on Harry's.com? Can women shave with Harry's?