The Conversation That Keeps Coming Up

A lot of the buyers we talk to-especially ones sourcing adult products for the first time-are making material decisions based on incomplete information. They've seen "medical-grade silicone" on a competitor's listing, they know TPE is cheaper, and they're trying to figure out whether the price gap actually matters for their margins. The short answer: it does. But probably not in the way they expect.

We get this question so often that it's basically become the opening of every new client call. So rather than repeat ourselves, we figured we'd put the whole story in one place-from why material choice affects your return rate (and your repeat-purchase rate), all the way through how a product actually gets made in our Shenzhen facility.

But first, a bit of context on where this industry is right now.

The global sexual wellness market hit roughly $35.2 billion in 2023, according to Grand View Research, and it's growing at about 8.7% CAGR. That's not a niche number-that's faster than the global cosmetics market. North America drives about a third of total sales. Europe is right behind, with Germany, the UK, and the Nordics leading the way.

Fig. 1 - Regional market share breakdown for the global sexual wellness industry, 2023. Source: Grand View Research, Statista.

What's driving this? It's not just one thing. The destigmatization trend is real-sexual wellness products are showing up on mainstream retail shelves now, not just in specialty shops. But the more practical driver for our B2B clients is the e-commerce explosion. Discreet packaging + direct-to-consumer shipping has eliminated the biggest purchase barrier that existed ten years ago. That's created a wave of new brands entering the space, and most of them need a manufacturing partner who can handle everything from prototyping to full production.

That's where we come in.

Hejiamei started as a general silicone product manufacturer back in 2007, originally registered under Jiamei International Group in Hong Kong. For the first five years, we did a bit of everything-silicone phone cases, kitchenware, watch bands, electronic accessories. The kind of stuff that teaches you how to work with silicone at scale, but isn't exactly exciting.

In 2012, we made a deliberate pivot into adult products. The market was clearly growing, our silicone expertise was directly transferable, and frankly, the technical challenges were more interesting-softer durometers, skin-safe formulations, dual-density molding, waterproof electronics integration. It turned out that everything we'd learned making "boring" silicone products was exactly the foundation we needed.

Fifteen years later, we're a full-service OEM/ODM partner for brands across Europe, North America, and Asia, with product lines covering vibrators, realistic toys, bondage accessories, and silicone intimate wear.

Our Team's Take

"We noticed that the brands asking us for quotes were getting more sophisticated every year. They weren't just looking for a factory-they wanted a partner who understood material science. By 2012, it was clear the market was moving toward quality, and we already had fifteen years of silicone formulation experience. Pivoting wasn't a gamble. It was the most logical thing we'd ever done."
- Michael Chen, Founder & General Manager

The Material Question And Why It's Not As Simple As "Just Use Silicone"

Here's what we tell every new client who asks about material options: silicone is the right choice for premium products, but "silicone" is not one thing. The gap between a cheap silicone compound and a properly formulated platinum-cured LSR is enormous-in feel, in safety, in how long the product lasts on the shelf and in use. So let's break this down honestly.

The safety argument isn't marketing fluff-it's a return-rate issue.

Medical-grade and food-grade silicone (the kind we use) is non-porous, hypoallergenic, and free from phthalates, BPA, and latex. That non-porous part matters more than people realize. Porous materials-TPE, PVC, even low-grade silicone-trap bacteria at the microscopic level. You can't fully sanitize them. Over weeks of use, they develop odors, discoloration, surface tackiness. That's when customers leave bad reviews and request returns.

A quality silicone product? You can boil it. Autoclave it. Wash it with soap and water and it's genuinely clean. That durability translates directly into customer satisfaction and repeat purchases.

So what about TPE? Is it ever the right call?

We get asked this a lot, and the honest answer is: it depends on your positioning. TPE is significantly cheaper-sometimes 40–60% less on material cost alone. For budget product lines where the buyer's primary concern is hitting a low price point, TPE can work. But you're making trade-offs.

Fig. 2 - Practical comparison of the three most common materials in adult product manufacturing. "Body safe" refers to compliance with EU REACH and US FDA skin-contact standards.

The takeaway from this table isn't "silicone is always better." It's that material choice is a business decision, not just a technical one. If you're building a premium brand that competes on quality and trust, silicone is non-negotiable. If you're running a high-volume, low-price SKU, TPE might make sense-but go in with clear eyes about the trade-offs in customer satisfaction.

�� Our Team's Take

"We had a client switch from TPE to our platinum-cured silicone mid-production cycle. Their return rate on Amazon dropped from 8% to under 2% within three months. The per-unit cost went up $1.20, but their net margin improved because they stopped losing money on returns and negative reviews. Material cost is never just material cost-it's the whole downstream equation."
- Sarah Williams, Product Development Manager

Beyond the safety and durability argument, there's the design flexibility angle that our product development team gets genuinely excited about. Silicone accepts color beautifully-Pantone matching with ΔE < 1.5, translucent effects, glow-in-the-dark, metallic finishes, even color-gradient molding where two tones blend seamlessly across a single piece. We keep a skin-tone library with 10+ shades that cover the realistic-product market.

The dual-density technique is worth calling out specifically. We mold a firmer silicone core inside an ultra-soft silicone exterior in a single production cycle. The result is a product that has internal structure-it holds its shape, it has realistic "resistance"-while the surface feels genuinely lifelike. This is hard to do well. It requires precise temperature control, matched cure rates between the two compounds, and mold engineering that keeps the two layers bonded without visible seams.

What We Actually Make

Rather than give you a catalog-style product list, here's a practical overview of our main categories and what's technically interesting about each one.

Vibrators & Motorized Products

This is our highest-volume category. We produce everything from compact bullet vibrators to full-size wand massagers to app-controlled smart devices. The technical work here is mostly about motor selection and noise control-a motor that delivers strong vibration at under 50 dB is surprisingly hard to engineer when you're also making the product waterproof to IPX7. Our current lineup uses a mix of Japanese-sourced motors and custom-wound motors depending on the client's specs and budget. Every unit gets tested for motor function, noise level, vibration pattern accuracy, and charge/discharge cycling before it ships.

Realistic Silicone Products

This is where our dual-density molding capability really shines. The challenge with realistic products is that customers have extremely high tactile expectations-the product needs to feel right in the hand, not just look right in a photo. We've developed proprietary silicone formulations specifically for this category, with surface treatments (we call them "skin-feel" finishes) that reduce that typical "silicone-y" tackiness and give the product a more natural, matte texture.

SM & Bondage Accessories

A smaller but growing category for us. We produce silicone gags, restraints, paddles, masks, and collars-typically combined with genuine leather, medical-grade stainless steel, or nylon webbing. The design emphasis here is on safety engineering: smooth edges that won't cut skin, breakaway mechanisms on restraints, and material choices that won't cause allergic reactions during extended wear.

Silicone Intimate Wear

Adhesive bras, nipple covers, push-up pads-these products share a lot of manufacturing DNA with our adult toy line (same silicone formulations, same skin-safety standards), but the end market is completely different. Several of our OEM clients source both categories from us, which simplifies their supply chain.

�� Our Team's Take

"2024 was a clear inflection point-for the first time, app-controlled products overtook manual vibrators in our order volume. The European market is driving this, particularly Germany and the Netherlands. Buyers there are consistently willing to pay a $5–10 premium per unit for Bluetooth connectivity and custom vibration programming. Three years ago, that was a feature request. Today it's a baseline expectation."
- James Park, Head of Sales

How a Product Gets Made Here

If you visited our factory in Shenzhen, here's roughly what you'd see as a product moves from raw material to finished goods. We're going to walk through the actual production flow rather than giving you a sanitized summary, because the details are where the quality differences live.

It Starts with the Silicone Itself

We source platinum-cured liquid silicone rubber (LSR) and high-consistency rubber (HCR) from certified suppliers. Every incoming batch gets tested-hardness, tensile strength, elongation at break, and chemical compliance. If it doesn't match spec, it goes back. We've rejected batches from suppliers we've worked with for years, because consistency matters more than relationships when you're shipping products that touch people's bodies.

Before production, our materials engineers formulate each batch to the product's specific requirements. That includes selecting the target Shore A hardness (most of our adult products fall between Shore 00-30 for soft items and Shore A 30-50 for structured items), blending in color masterbatch to hit the client's Pantone code, and adding any functional additives-antibacterial agents, surface-modification compounds, that sort of thing.

Then There's the Mold

Mold engineering is honestly where a lot of the magic happens, and it's the step that most buyers don't think much about. A well-designed mold determines parting line placement (you want seam lines hidden in inconspicuous areas), surface finish quality, cycle time, and whether you can even demold the product without damaging it.

Our typical workflow looks like this: the client sends us a concept-sometimes it's a detailed 3D CAD file, sometimes it's a hand sketch on a napkin (seriously). Our design team builds a production-ready 3D model, runs DFM (Design for Manufacturability) analysis to flag any issues, and produces a rapid prototype. That prototype goes to the client for physical evaluation. Once approved, our tooling shop machines the production mold from hardened steel using CNC and EDM (Electrical Discharge Machining).

Fig. 3 - Typical project timeline from concept to shipment. Timelines compress for repeat orders where tooling already exists.

�� Our Team's Take

"The biggest mistake we see in customer-provided designs is ignoring draft angles. A product that looks beautiful in CAD can be impossible to demold without damage if the angles aren't considered from the start. That's why we always run DFM before cutting steel. Fixing a CAD file costs nothing. Fixing a mold costs three weeks and tens of thousands of dollars."
- David Liu, Mold Engineering Lead

The Actual Molding Process

We run two main processes, and the choice between them isn't arbitrary-it's driven by the product's geometry, volume requirements, and material.

LSR injection molding is our go-to for high-volume, complex parts. Two-component liquid silicone gets metered, mixed, and injected into a heated steel mold under controlled pressure. The silicone cures in 30–60 seconds, which means fast cycle times and high throughput. We use this for most vibrators, insertable products, and anything that requires overmolding onto a rigid substrate.

HCR compression molding works better for larger products, simpler shapes, or lower-volume runs where the tooling investment of injection molding doesn't make economic sense. Cycle times are longer, but tooling costs are significantly lower-which matters when you're prototyping a new product line or running limited editions.

Fig. 4 - When to use injection vs. compression molding. Many clients start with compression for initial runs, then migrate to injection as volumes scale.

For dual-density products (firm core + soft exterior), we use a two-shot molding process or sequential overmolding. The inner core is molded first, then placed into a second mold cavity where the soft outer layer is injected or compressed around it. Getting the two silicone layers to bond properly-without delamination, without visible seam lines-requires matched cure chemistry and precise temperature control.

Electronics Integration

For motorized products, there's a whole second phase of assembly after the silicone work is done. Motors get mounted, PCBs get installed, lithium-polymer batteries get wired in with proper safety circuits (overcharge protection, over-discharge protection, short-circuit cutoff-these aren't optional, they're required for CE marking and retailer compliance). Everything gets sealed-silicone gaskets, ultrasonic welding, or potting compound depending on the design-to hit IPX7 waterproof rating.

Then every single unit goes through functional testing. Not sampling-every unit. Motor on, all vibration patterns cycled, button response checked, charging verified, Bluetooth pairing confirmed (for smart products). The units that fail get pulled, diagnosed, and either reworked or scrapped. We don't ship questionable units.

�� Our Team's Take

"Our first-pass yield rate on the electronics assembly line runs about 97.5%. The most common failure mode is waterproof seal integrity-which is exactly why we test every single unit by submersion, not just spot-check. Sampling gives you a statistic. Individual testing gives your customer a guarantee. For products entering EU and US retail channels, that's not optional."
- Rachel Thompson, Quality Control Manager

Quality Control Isn't a Department. It's a Habit.

QC isn't a checkpoint at the end of the line-it's woven into every stage. Incoming materials get tested. In-process checks happen continuously. Finished products get functional testing, waterproof testing, drop testing, noise measurement, and 100% visual inspection before they're cleared for packaging.

Fig. 5 - Our QC protocol by production stage. "100%" means every unit is individually tested, not sampled.

What "Custom" Actually Means When You Work With Us

Every manufacturer says they do "custom." What we mean by it is probably more comprehensive than what most factories offer, so let's be specific.

Design: We can work at whatever level of readiness you're at. If you have production-ready 3D files, great-we'll review them for manufacturability and move straight to tooling. If you have a rough concept and a competitor's product you want to improve on, our industrial design team can develop the full product from scratch.

Materials & aesthetics: We offer Pantone color matching (ΔE < 1.5 tolerance), custom hardness formulation, dual-color molding, translucent/metallic/glow-in-the-dark effects, and our proprietary skin-tone library. Surface options include mirror-smooth polished, matte velvet-touch, and custom textures.

Branding & packaging: We handle logo embossing or pad-printing on products, fully custom packaging design (retail boxes, magnetic closure gift boxes, eco-friendly options), instruction booklets in any language, warranty cards, and marketing inserts.

Smart products: We can integrate Bluetooth connectivity (with iOS/Android SDK), custom vibration pattern programming, touch-sensitive controls, pressure sensors, and internet-based long-distance remote control.

Our Team's Take

"A European DTC brand came to us with a sketch and a mood board. Eight weeks later, they had shelf-ready product with custom packaging, app connectivity, and full compliance documentation for EU retail. That turnaround is only possible because design, tooling, molding, electronics, and packaging all happen under one roof. No handoffs to unknown subcontractors. No surprises."
- Emma Davis, OEM/ODM Account Manager

Compliance: The Part Nobody Finds Exciting (But Everyone Needs)

If you're selling into the EU or North America-and most of our clients are-regulatory compliance isn't optional. It's also not as straightforward as some factories make it sound. Here's what we actually have, and what each certification means in practical terms.

Fig. 6 - Key certifications and what they mean for market access. All reports are available upon request for your compliance team.

One thing worth noting: a lot of factories will tell you they're "compliant" but can't actually produce the test reports when asked. We maintain current documentation for all of the above and can provide it directly to your regulatory team or retail partners. If you're going through Amazon's compliance verification process or a retailer's vendor qualification, we've been through it before and can help you prepare the documentation package.

Our Team's Take

"We helped a US client navigate Amazon's compliance requirements for adult wellness products last year. They needed specific test reports formatted in a particular way for Amazon's vendor qualification process. We had everything turned around in 48 hours because we'd already run the same exercise for three other clients that quarter. When compliance documentation is in order from day one, it never becomes a crisis."
- Kevin Brooks, Regulatory & Compliance Lead

Why Hejiamei, Specifically?

There are a lot of silicone product manufacturers in China. There are fewer that specialize in adult products. And there are fewer still that combine material expertise, electronics integration capability, design services, and compliance experience under one roof. That's our positioning, and we'll let you evaluate whether it fits your needs.

Track record: We've been making silicone products since 2007 and adult products specifically since 2012. New factories learn on their clients' dime. We've already paid that tuition.

Location: We're in Shenzhen. Motors, PCBs, batteries, packaging materials, logistics-everything we need is within a two-hour drive. That compresses lead times and gives us leverage on component pricing.

Vertical integration: We handle everything in-house. Design, mold making, silicone molding, electronics assembly, QC, packaging. No subcontracting critical steps to unknown third parties.

Low MOQ: We support smaller initial batches for new products. If you're a startup testing a concept or an established brand launching a new SKU, you don't need to commit to 10,000 units before you know the product works in market.

IP protection: We sign NDAs and take IP protection seriously. Your product designs, tooling, and brand strategy stay confidential. We have internal information security protocols and contractual protections in place.

Let's Talk

If any of this resonates with what you're looking for in a manufacturing partner, the easiest next step is just to reach out. Tell us what you're working on-a product concept, a design file, a competitor sample you want to improve on, or even just a vague idea-and we'll give you an honest assessment of what it would take to produce it, what it would cost, and how long it would take.

We're happy to provide samples from our existing catalog so you can evaluate material quality and finish before committing to anything custom. No hard sell-we'd rather you make an informed decision.