The Hydro Silk Blades 3 Pack hydrate skin for up to 2 hours after shaving. Each blade contains the unique moisturising serum, infused with marine extracts and shea butter, that activates upon contact with water. Unlike conventional lubrication strips, the moisturising serum actually hydrates the skin. The 5 curve-sensing elements, set in an oval razor cartridge that adapts to your natural shape, will give you irresistibly smooth skin. Use with the Hydro Silk Razor (product code 36714).