The realism of erotic sex dolls today is largely due to advancements in material science, which have enabled manufacturers to create lifelike textures and structures. High-quality silicone and thermoplastic elastomers are the primary materials used, offering a soft, realistic feel that closely mimics human skin. Silicone, in particular, is valued for its durability, flexibility, and hypoallergenic properties. It can be molded into detailed features, including realistic pores, veins, and skin textures, enhancing the authenticity of the doll. TPE (thermoplastic elastomer) is another popular material, known for its softness and affordability, although it requires more maintenance to prevent damage. The internal structure often includes a skeleton or frame made of metal or rigid plastic, providing stability and poseability. Some advanced dolls incorporate heating elements or sensors to simulate body temperature and responses, elevating realism further. The development of these materials involves complex chemical formulations and manufacturing processes that ensure safety, durability, and a natural appearance. Understanding these materials helps consumers appreciate the craftsmanship involved and guides them in proper maintenance to prolong their doll’s lifespan. As material science continues to evolve, future models are expected to become even more realistic and interactive.