Silver is a silicone based personal lubricant, and is Sliquid's Premium formulation. Super long lasting and 100% waterproof, Silver is the perfect choice for those who need a lubricant to last. Made from a ultra concentrated blend of medical grade silicones, Sliquid Silver will last as long as you need it to, and is easy to clean up with soap and water. All Sliquid products are formulated by sensitive women.