How often should I change my blades? Nick M 21 January 2021 07:07 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 What's the difference between a Truman and a Winston? Do your blades have a trimmer blade on the back? How often should I change my blades? Can women shave with Harry's? Can I recycle my Harry's? Where are your products made? Do I have to use both your razor and your gel or cream? Are your blades and handles compatible with other brands? How many blades are in your cartridges? What's the best way to use your Shave Cream or Gel? See more