A razor that hydrates* or a bikini trimmer that’s waterproof? With the Hydro Silk 5 TrimStyle, you can have both in one. On one end, this five-blade razor is formulated with water-activated Hydra-Boost serum with shea butter and is clinically proven to hydrate skin up to 2 hours after shaving. The other end is a waterproof trimmer that can be used in or out of the shower for convenient bikini maintenance.