The blades are specially designed for long-lasting performance. When exactly the blade should be replaced depends very much on the frequency and intensity of use. However, we recommend replacing the blades after approx. 4 months, also for hygienic reasons.

Good day. I can't answer that. As a woman, I don't know anything about it anyway, and my son uses the Blade to trim his beard. He never shaves wet. Greetings Ursula