A quality Two Band badger brush, properly maintained, easily lasts 8-10 years — it's not a consumable, it's an investment that improves with age as the tips soften further. After each shave, rinse thoroughly with lukewarm water (never hot), gently squeeze excess moisture from the tips, and let it dry hanging or upside-down on a brush stand. Avoid towel-drying, which damages the tips over time. Once a month, a gentle wash with baby shampoo keeps the bristles clean and supple.