When it comes to lifelike dolls, TPE (Thermoplastic Elastomer) dolls and silicone dolls are the two most popular materials used in their manufacturing. Both materials have unique characteristics that cater to different preferences and needs.

TPE Dolls:
TPE, or Thermoplastic Elastomer, is a blend of plastic and rubber that is molded under high heat and pressure. It's a relatively new material in the sex doll industry.

Advantages of TPE Dolls:
- Softness and Realism: TPE is known for being exceptionally soft to the touch, giving a more realistic flesh-like feel.
- Flexibility: TPE dolls are more flexible, which allows them to handle various poses easily.
- Cost: They tend to be a more affordable option compared to silicone dolls.

Disadvantages of TPE Dolls:
- Porous Material: TPE is a porous material which makes it more difficult to clean and sterilize.
- Durability: TPE may become sticky over time and is less heat resistant than silicone.
- Maintenance: Requires more maintenance to keep the material in good condition.

Silicone Dolls:
Silicone is a non-porous, hypoallergenic material that has been used in the sex doll industry for a long time.

Advantages of Silicone Dolls:
- Durability: Silicone is more durable, non-porous, and can withstand high temperatures.
- Easy Maintenance: Easier to clean and sterilize since it’s a non-porous material.
- Realistic Features: Can be molded with more detailed and realistic facial and body features.

Disadvantages of Silicone Dolls:
- Rigidity: Silicone dolls are generally firmer, which might not be as comfortable compared to the softness of TPE.
- Cost: Higher cost due to the material and intricate molding processes.
- Weight: Tends to be heavier, making them slightly more difficult to move and pose.