It's Only Natural ! Smooth™ Natural is water based sensual lubricant, uniquely formulated with natural ingredients including soothing aloevera. More and more of our customers have told us how important it is to have a personal lubricant which is made from natural products and does not contain petrochemicals. So we’ve listened, and combined with our philosophy of using only premium natural ingredients Smooth™ Natural is an excellent alternative to chemical based lubricants. Smooth™ Natural is completely free from petrochemicals (such as parabens or propylene glycol), glycerine, hormones or silicones. It's just like the real thing.