Braun product information recommends replacing shaver foils and cutter blocks every 18 months to maintain peak shaving performance.
A Braun Clean & Renew cartridge contains an alcohol‑based, lemon‑scented cleaning solution that removes residual hair and lubricates blades; Braun recommends replacing the cartridge about every 2 months.
Product descriptions say replacement shaver heads snap or click into place for easy installation, and user reviews generally describe the process as straightforward.