





YONAISI
YONAISI — A Global Leader in Intelligent Sex Doll Manufacturing.
From a nine-member team in 2018 to today’s independent R&D center and modern production facility, we have always prioritized quality and innovation, bringing users around the world more realistic, safer, and more emotionally engaging companion products.
Strength comes from persistence, and trust builds a brand.




Frequently Asked Questions (FAQs)
In the world of sex dolls, TPE (Thermoplastic Elastomer) and silicone are the two most popular materials. Not only do they offer a highly realistic touch, but they are also widely discussed for their environmental characteristics. But when it comes to eco-friendliness and safety, which material truly stands out?
This article will take you through an in-depth comparison.
TPE Sex Dolls
TPE (Thermoplastic Elastomer) is a material made from a combination of various plastics. While it offers excellent softness and a highly realistic touch, it is slightly less eco-friendly compared to silicone. TPE itself is not biodegradable, but the good news is that it can be recycled. Professional recycling facilities can melt down old dolls and reprocess the material into new TPE products, or even use it as filler for other items.
Environmental Pros & Cons
✅ Advantages: Fast production molding, lower energy consumption during manufacturing, and more cost-effective.
❌ Disadvantages: Not biodegradable and must be processed through proper recycling channels; otherwise, it contributes to environmental burden.
Health & User Experience
High-quality TPE dolls generally do not contain phthalates or other harmful chemicals, making them theoretically safe. However, low-cost or inferior TPE products may have surface porosity, making cleaning more difficult and allowing bacteria to grow. Therefore, it is essential to choose reliable brands—such as RosemaryDoll and other reputable suppliers—to ensure safety and hygiene.
Silicone Sex Dolls
Silicone is primarily made from silica and is a more stable, eco-friendly material. When produced with 100% pure or medical-grade silicone, it is not only non-toxic but also fully recyclable. Compared to TPE, silicone is more durable, easier to clean, and better for both the environment and the user.
Environmental Pros & Cons
✅ Advantages: Non-toxic, recyclable, and does not release harmful substances. It poses almost no risk to soil or aquatic environments.
❌ Disadvantages: Higher energy consumption during production and generally more expensive to manufacture.
Health & User Experience
Silicone contains no BPA, phthalates, or other chemical additives, and its surface is resistant to bacterial growth. Cleaning requires only warm water and mild antibacterial soap — simple and convenient. At the same time, silicone dolls offer a texture closer to real skin, making them a top choice among users.
Which Material Is More Eco-Friendly?
Overall:
- Silicone is more durable, easier to clean, and has greater recycling potential, resulting in a lower long-term environmental impact.
- TPE is more energy-efficient during production and more budget-friendly but relies heavily on proper recycling to reduce environmental pressure.
If you prioritize eco-friendliness and health, silicone is the better choice.
If you value cost-effectiveness and a softer touch, TPE remains a great option.
Conclusion
Regardless of which material you choose, proper usage and recycling are key. High-quality sex dolls not only offer a more realistic experience but are also more sustainable for the environment. Always choose reputable brands to avoid health and environmental risks associated with low-quality products.
How to Choose the Right Sex Doll for You — YONAISI Guide
With the continuous growth of the adult product market, sex dolls have become increasingly popular as high-end pleasure products. They not only replicate the human body with stunning realism but also offer lifelike touch and companionship experiences. However, with so many options available, how can you choose the right sex doll for yourself? Here, YONAISI provides a comprehensive buying guide.
1. Determine Your Budget
Before making a purchase, it’s important to establish your budget. Sex dolls vary widely in price, ranging from a few hundred to several thousand dollars. YONAISI recommends considering not only the cost of the doll itself but also additional expenses such as cleaning and care supplies, storage space, and clothing accessories. Planning ahead will make your first experience much more enjoyable and stress-free.
2. Material Selection
Material is a key factor that affects the overall experience. The two main materials currently available are TPE and silicone.
Silicone Dolls:
Silicone offers excellent durability and refined visual appeal, with realistic details and long-lasting makeup effects. Its non-porous nature makes cleaning easier, but it is generally more expensive. Ideal for users seeking a premium, high-quality feel.
TPE Dolls:
TPE is softer and more elastic, providing a touch closer to real skin for an intimate, natural experience. However, it requires more careful daily maintenance to avoid dust or stickiness on the surface.
Hybrid Materials (Silicone Head + TPE Body):
Some YONAISI dolls use this design, combining the aesthetic beauty of a silicone head with the softness of a TPE body. It offers a high cost-performance ratio and is a popular choice among users.
3. Height & Weight
Full-body sex dolls typically range from 140cm to 170cm in height and weigh around 20kg to 50kg. Heavier dolls feel more realistic but can be more difficult to move or use. YONAISI offers various sizes and body types, allowing users to find their ideal companion based on personal needs.
4. Appearance & Customization
The appearance of a sex doll depends entirely on your personal aesthetic. Whether you prefer gentle Eastern features, sexy Western looks, or anime-inspired designs, YONAISI provides diverse options. For those seeking a unique experience, customized dolls are available, including choices for skin tone, hairstyle, eye color, breast shape, and other details.
5. Additional Features
Modern sex dolls are no longer just static figures. Some products include extra features such as heating systems, sound modules, smart interaction, or even robotic versions. YONAISI continues to develop and upgrade these features to deliver more immersive experiences for users.
6. Stock vs. Custom Orders
In-Stock Dolls:
Suitable for users who want to get started quickly. These dolls are more affordable and can be shipped promptly.
Custom Dolls:
Ideal for those seeking personalized options. While custom dolls require a production period, they provide a truly unique, one-of-a-kind companion.
Conclusion
Choosing a sex doll is a highly personal decision. Whether you seek a collectible with artistic value or a private companion for intimacy, YONAISI can provide the perfect solution. We recommend considering factors such as budget, material, appearance, functionality, and brand reputation to select a doll that truly matches your preferences.
At YONAISI, we believe that a suitable sex doll is more than just an adult toy—it is a private partner that can bring pleasure, companionship, and satisfaction.
Why YONAISI Launched the Japan & Korea Series Sex Dolls
In the global adult doll market, Japanese and Korean sex dolls hold a very important position. Whether it’s the exquisite craftsmanship of Japanese dolls or the fresh aesthetics of Korean dolls, both have unique appeal worldwide. What exactly makes these dolls so popular? Let’s explore from several perspectives.
1. Unique Aesthetic Appeal
Japanese dolls are often inspired by iconic Asian features: gentle eyes, natural makeup, and elegant contours, exuding delicate Eastern charm. They seamlessly blend realism with artistry, creating a sense that is both lifelike and dreamlike.
Korean dolls, on the other hand, focus more on a fresh, youthful vibe. With soft skin tones, clean makeup, and trendy styling, they are especially popular among younger users. Many view Korean dolls as symbols of a “first love” or “girl next door” experience.
This differentiated aesthetic allows Japanese and Korean dolls to capture distinct markets within different consumer groups.
2. Compact Yet Realistic Sizes
Unlike the tall and heavy dolls favored in the Western market, Japanese and Korean dolls tend to have smaller frames, usually between 148–165 cm, and are lighter, making them easier to store and pose.
Many brands also use weight-reduction techniques, ensuring a comfortable grip and handling experience even with full silicone dolls. For beginners, this size and weight make the dolls more approachable and user-friendly.
3. Balance Between Realism and Fantasy
Japanese and Korean dolls not only pursue extreme realism but also incorporate fantasy elements in their design.
Japanese brands often include cosplay outfits, colorful hairstyles, and anime-inspired elements, allowing the dolls to satisfy both realistic and imaginative desires.
Korean brands focus on fashionable and lifestyle-inspired styles, such as streetwear or schoolgirl looks, providing a sense of immersion close to real life.
This balance of realism and fantasy makes Japanese and Korean dolls a combination of emotional companionship and role-play experience.
4. Innovation and Functionality
Japanese and Korean manufacturers are at the forefront of design and functional innovation:
- Refined joint skeletons: Allow for more posing possibilities.
- LHP (Logically Positioned Love Holes): Enhance realistic experience.
- Diverse material options: From high-end TPE to full silicone, and even hybrid techniques.
- Smart features: Some brands explore voice, conversation, and AI interaction, making dolls more than just static companions.
These continuously evolving functions make Japanese and Korean dolls not only collectibles but also long-term companions.
Conclusion
The popularity of Japanese and Korean sex dolls is no accident.
They combine Eastern aesthetics, practical sizing, a blend of realism and fantasy, and cutting-edge design innovations. For doll enthusiasts worldwide, these dolls are not merely adult toys—they represent emotional connection and artistic collection.
In short, Japanese and Korean dolls are redefining the imagination of what a “companion” can be, through their unique charm.
Why More and More Men Are Choosing Sex Dolls
In today’s fast-paced world, feelings of loneliness and stress are everywhere. Not everyone can easily find an ideal partner, and some people crave companionship without being tied down by the complexities of real-life relationships. As a result, sex dolls are gradually becoming a part of more men’s lives.
Sex dolls are no longer merely “adult toys”; they provide a sense of comfort, realism, and companionship.
More Than Just Physical Desire
For many, the first encounter with a sex doll is driven by curiosity or physical needs. But over time, users discover that dolls offer more than just bodily pleasure:
- Companionship: In the quiet of the night, she is quietly by your side, providing warmth that keeps loneliness at bay.
- Emotional Comfort: Even without words, her soft touch and gentle presence provide a quiet form of healing.
- Psychological Relaxation: No fear of rejection, no need to cater to anyone’s expectations—she accepts you completely.
A Customizable “Ideal Partner”
In real life, we cannot control our partner’s appearance, personality, or body. But with YONAISI, all of this becomes possible:
- Choose her face, hairstyle, and eye color.
- Decide her height, breast size, and skin tone.
- Even define her temperament: gentle, sweet, or mature and alluring.
This is not just a toy—it’s your own personalized ideal companion.
Safety and Freedom
Another key advantage of sex dolls is the sense of safety and control:
- No worries about complicated interpersonal relationships or emotional burdens.
- No fear of disease risks; everything is within your control.
- You can engage and explore at your own pace.
This sense of security is why many men regard sex dolls as “secret companions”—they won’t betray you, leave you, or complain. They simply offer quiet, loyal companionship.

Ethan Cole
Exterior Design Specialist
Ethan Cole crafts lifelike, elegant, and ergonomic adult companion products. His designs blend artistic creativity with precision, ensuring every detail delivers beauty, comfort, and quality.
Philosophy:
“Design is about the experience, not just the look.”

Emma Collins
Marketing Director
Emma Collins drives brand growth with strategic vision and innovative marketing solutions. She excels at connecting products with people, creating campaigns that inspire engagement and loyalty.
Philosophy:
“Marketing is not just about selling, it’s about creating meaningful connections.”

Noah Reed
Creative Director
Noah Reed leads the creative vision, transforming ideas into striking, innovative designs. With a keen eye for aesthetics and storytelling, he ensures every project reflects originality, quality, and impact.
Philosophy:
“Creativity is the bridge between imagination and reality.”
YONAISI



TPE Sex doll Zara
YONAISI Realistic Love Doll · TPE Material · Multiple Heights Available
Crafted from soft, skin-friendly TPE with high elasticity, YONAISI offers an incredibly lifelike touch for a more immersive experience.
Choose from three height options — 158cm (petite), 161cm (full bust), and 166cm (balanced figure) — to match your personal preference. Whether you’re drawn to a sweet and petite look or fuller, more seductive curves, there’s a perfect match waiting for you.
Made with body-safe materials and easy to clean, YONAISI dolls combine quality and detail to deliver both visual appeal and tactile pleasure











