There are four common types of personal lubricants on the market: silicone-based, water-based, oil-based, and mixed. Silicon-based lubricants are generally thicker, smoother, and have a longer lifespan, while water-based lubricants, as the name suggests, are mainly composed of H20, so they are easy to wash off and leave no residue. At the same time, oil-based lubricants have the strongest viscosity, …