bought a new brush, a Simpson Duke #2, and it turned out to be a shedder. Tried the shampoo treatment which, for a while, slowed the shedding. Within a few uses, however, the shedding was as bad as ever. So I contacted the vendor, West Coast Shaving, who within a few days of the return of the offending brush sent me a new one, post paid. WCS rocks. Very friendly and attentive customer service.