Vibrator Materials Guide: Silicone, ABS Plastic, and What to Avoid

Material is the most safety-critical spec in a vibrator, and it's one of the most frequently obscured in product listings. Here's what the different materials actually are, which are genuinely safe, and why some commonly available options are best avoided.

What "Body-Safe" Means

A body-safe material is non-porous (can't absorb bacteria, bodily fluids, or cleaning products), free from harmful chemicals, and inert against body tissues. For sex toys — which contact mucous membranes and may be used internally — these properties are meaningfully important.

The sex toy industry is largely unregulated in most markets. Unlike medical devices or food contact materials, there's no mandatory testing or safety certification for sex toys in the UK, US, or EU (with limited exceptions). This means manufacturers can use materials that would be banned in other product categories, and frequently do.

Silicone

Medical-grade or body-safe silicone is the gold standard. It is:

• Non-porous: bacteria, bodily fluids, and cleaning products don't penetrate the surface
• Chemically inert: it doesn't leach anything into the body and doesn't react with body chemistry
• Easy to clean: soap and water, alcohol wipes (for external use only), or boiling are all effective
• Hypoallergenic: reactions to silicone are extremely rare
• Available in a range of firmnesses: from very soft to relatively firm

The caveat is that "silicone" as a claim is not always verified. Some products describe themselves as silicone while actually being made from silicone blends mixed with fillers that compromise the non-porous quality. Genuine silicone should feel slightly warm, have a subtle matte finish, and not smell strongly. If a "silicone" toy smells chemical or feels unusually tacky, it may not be pure silicone.

ABS Plastic

Hard plastic (acrylonitrile butadiene styrene) is the second body-safe material commonly used in vibrators. It is non-porous, easy to clean, and chemically stable. Its hardness means it conducts vibration differently from silicone — sharper, more transmitted to the surface. Many bullet vibrators have an ABS plastic body.

ABS plastic is entirely safe and a reasonable material choice, particularly for external-use toys where flexibility isn't required.

Aluminium and Stainless Steel

Used in some premium vibrators (particularly wand heads and insertable toys). Non-porous, hypoallergenic, and completely safe. The firmness makes them particularly effective for G-spot pressure. Temperature play (warming or cooling before use) is possible with metal toys.

What to Avoid

Jelly rubber / jelly plastic — the most common problematic material. Jelly is a generic term for a soft, pliable material that's often porous and frequently contains plasticisers including phthalates, which are endocrine-disrupting chemicals. Jelly toys often smell strongly of rubber or plastic. They cannot be properly cleaned and should not be used internally, regardless of what the listing says.

PVC — similar issues to jelly. Porous, often contains phthalates, difficult to clean properly. Sometimes used in cheaper vibrators and sleeves.

Vinyl — also porous, often with plasticisers. Avoid.

"Cyberskin," "UR3," "Fanta Flesh," and similar branded elastomers — these are proprietary materials designed to feel realistic. They're porous by design (for the soft, lifelike feel) and cannot be made non-porous. They can be used safely with a condom over the toy; using them without a condom repeatedly is not recommended.

TPE (thermoplastic elastomer) — technically porous, though the degree varies significantly between formulations. TPE is widely used in male masturbators and some inserts. Higher-quality TPE (as used in Fleshlight's SuperSkin, for example) is porous but made without harmful plasticisers. With thorough cleaning and drying, it's manageable. Not suitable for anal use where cleaning is more critical.

How to Identify Materials from Listings

Look for explicit material claims — "body-safe silicone," "medical-grade silicone," "ABS plastic." Be cautious of vague terms like "safe material," "non-toxic," "skin-friendly," or "realistic material." These phrases describe intent rather than a specific material.

See also: What 'Body-Safe' Actually Means, Silicone vs TPE Material Guide, Best Vibrators for Beginners