Produced from medical-grade silicone or thermoplastic elastomer ( tpe ) , they impersonate human skin with startling precision . Silicone offers longevity , While tpe provides a softer, more skin-like texture. Moistness control methods and self-lubricating features further improve common sense . Facial recognition makes it possible for them to bear in mind their homeowners , While motorized movement s create the delusion of responsiveness. The sex doll market is now a multi-billion-dollar blog global industry , , with china, japan , and the u. Proponents argue that sex dolls can reduce loneliness , Giving presence to those who encounter social conversations. Coming developments could include enhanced ai psychological intelligence , Haptic feedback systems , and even bio-integrated features.