Creating a lifelike sex doll requires materials that closely mimic human skin, weight, and texture. The most popular materials used in manufacturing these dolls are silicone and thermoplastic elastomer (TPE). Silicone is highly valued for its durability, heat resistance, and realistic feel. It offers a smooth, firm surface that can withstand frequent use without tearing or degrading quickly. Additionally, silicone can be painted and detailed to replicate natural skin tones, veins, and blemishes, enhancing realism.

TPE, on the other hand, is known for its softness and flexibility, making it feel more like real human skin. It is generally more affordable than silicone and provides a softer, more pliable texture that many users find appealing. TPE is also highly elastic, allowing for a more natural range of motion and a more realistic feel during intimate use. However, it can be more prone to tearing and may require special care to maintain its condition.

Some manufacturers combine these materials or utilize specialized coatings to improve durability and realism. For instance, layered constructions with silicone on the surface and TPE beneath can offer the best of both worlds: a realistic feel combined with durability. Ultimately, the choice of material depends on personal preference, budget, and maintenance willingness. Both silicone and TPE dolls have made significant advances in realism, making them the top choices for those seeking a highly authentic experience.