If you’ve spent any time shopping for sex toys, you’ve seen claims like “body-safe,” “medical-grade silicone,” and “phthalate-free.” Some of these claims are true. Many aren’t. This guide explains exactly what to look for — and what to avoid.
Why Materials Matter
Sexual wellness products come into direct contact with some of the most absorptive tissue in the human body. Genital and anal tissue absorbs substances more efficiently than skin. This means that porous or chemically unstable materials don’t just sit on the surface — they interact with your body.
The good news: safe materials are well understood. The confusing part is that the industry is largely self-regulated, and “body-safe” has no legal definition in most markets.
The Safe Materials
100% Medical-Grade Silicone
The gold standard. Medical-grade silicone (also called platinum-cured silicone) is:
- Non-porous — bacteria cannot penetrate the material
- Non-toxic — doesn’t contain phthalates, BPA, or other plasticizers
- Hypoallergenic — rarely causes allergic reactions
- Sterilizable — can be boiled or run through a dishwasher (top rack, no detergent)
- Durable — maintains its properties over years of use
How to verify: Legitimate silicone toys don’t react to a flame test — hold a lighter to an inconspicuous spot for 5–10 seconds. Real silicone chars slightly and turns to white ash that wipes away. Fake silicone melts, smells of chemicals, and leaves residue. It’s a destructive test, but it works.
Brands known for genuine silicone: Lelo, We-Vibe, Dame, Womanizer, Satisfyer (silicone models), Lovense, Njoy.
ABS Hard Plastic
ABS (Acrylonitrile Butadiene Styrene) is the rigid plastic used in products like the Hitachi Magic Wand head and many insertable toys. It’s body-safe when certified and used correctly:
- Non-porous
- Non-toxic
- Easy to clean (mild soap and water)
- Cannot be sterilized by boiling (will melt)
ABS is often paired with silicone: a silicone body with ABS internal components.
Stainless Steel & Aluminum
Premium metals used in high-end insertable toys (Njoy is the most well-known brand). Properties:
- 100% non-porous
- Fully sterilizable
- Extremely durable
- Can be warmed or cooled for temperature play
- Heavy — adds pressure and sensation
Look for surgical-grade 316L stainless steel specifically. Cheap metals may contain nickel (a common allergen).
Borosilicate Glass
The same material used in laboratory glassware and quality cookware. Non-porous, fully sterilizable, temperature-responsive. High-quality glass toys are more durable than they appear — they’re designed to withstand thermal shock.
The Problematic Materials
TPE and TPR (Thermoplastic Elastomer / Rubber)
TPE and TPR are soft, flexible, rubber-like materials used in budget toys because they’re cheap to manufacture. The problem:
- Porous — the material has microscopic channels where bacteria can live. You cannot fully sterilize a TPE toy, even with soap and water.
- Unstable — TPE degrades over time, especially when exposed to lubricants
- Variable composition — “TPE” is a broad category. Some formulations contain phthalates; others don’t. Without lab testing, you can’t know.
TPE toys are not inherently toxic in the short term. The concern is bacterial harboring over repeated use and chemical off-gassing from lower-quality formulations.
If you own a TPE toy: Use a condom on it every time, replace it every 6 months, and store it separately from silicone toys (TPE can cause silicone to degrade on contact).
Jelly Rubber / Soft PVC
This is the material most associated with the “new toy smell” — a sharp, chemical odor that means phthalates. Jelly rubber is:
- Porous
- Often contains phthalates (chemicals that make PVC flexible, linked to endocrine disruption)
- Unstable and degrades quickly
- The most concerning material category in the industry
Recommendation: Avoid entirely. The price difference between a jelly toy and a genuine silicone equivalent has shrunk significantly over the past five years. There’s no good reason to use jelly rubber toys.
“Silicone Blends”
This phrasing is a red flag. Genuine 100% medical-grade silicone doesn’t need to be blended with anything. “Silicone blend” typically means a silicone-TPE or silicone-PVC mixture, which eliminates the primary benefits of silicone (non-porosity, sterilizability, stability).
The Flame Test: A Practical Guide
The flame test is the most accessible way to verify silicone claims at home.
What you need: A lighter, and a spot on the toy that won’t affect function (the base of an insertable toy, for example).
What to do:
- Hold the flame to the material for 5–10 seconds
- Let it cool
- Observe the result
Genuine silicone: Chars slightly, turns to white powder that wipes away cleanly. No smell, or a faint clean smell.
TPE/TPR/Jelly: Melts, deforms, produces black smoke, smells of burning chemicals. The material will be visibly damaged.
Important: This test damages the toy. Only perform it if you’re willing to sacrifice a small section, or on a toy you suspect is counterfeit. Many reviewers perform this test on press samples before reviewing.
The Porosity Problem
Here’s why porosity matters more than most consumers realize.
A non-porous material (silicone, steel, glass, ABS) can be completely cleaned. Soap, water, and time kill surface bacteria. You can also boil or sanitize these materials.
A porous material (TPE, jelly, rubber) cannot. The bacteria aren’t just on the surface — they’re inside the material, in microscopic channels that cleaning products can’t reach. Over repeated use, the bacterial load in a porous toy increases.
This is particularly relevant for:
- Toys shared between partners
- Anal toys, where fecal bacteria are a concern
- Anyone with recurring infections or sensitivities
The condom solution: Using a new condom on a porous toy for every session significantly reduces risk. It doesn’t eliminate porosity concerns, but it creates a non-porous barrier.
How to Read a Product Listing
When you’re evaluating a toy:
Green flags:
- “100% platinum-cured silicone” or “100% medical-grade silicone” (not “silicone blend”)
- Phthalate-free certification from a third party (not just a brand claim)
- CE, REACH, or RoHS certification for European markets
- Specific material specifications in the product listing
Red flags:
- “Jelly” or “jelly-like”
- “Silicone blend” or “silicone composite”
- No material specification at all
- Unusually strong chemical smell on new products
- Price that seems too low for what’s being claimed
Neutral:
- “Body-safe” (no legal meaning — look for specifics)
- “Non-toxic” (true of most materials but not meaningful for porosity)
- “Hypoallergenic” (again, look for specifics)
Our Recommended Safe Materials, Ranked
- 100% Platinum-Cured Silicone — best all-around
- Surgical Steel (316L) — best for temperature play, most durable
- Borosilicate Glass — excellent, with temperature responsiveness
- ABS Hard Plastic — good, especially combined with silicone
- TPE/TPR — use with condoms only, replace regularly
- Jelly/PVC — avoid
Cleaning by Material
| Material | Soap & Water | Dishwasher | Boiling | Toy Cleaner |
|---|---|---|---|---|
| Silicone (no motor) | ✓ | ✓ (top rack) | ✓ | ✓ |
| Silicone (with motor) | ✓ | ✗ | ✗ | ✓ |
| ABS Plastic | ✓ | ✗ | ✗ | ✓ |
| Stainless Steel | ✓ | ✓ | ✓ | ✓ |
| Glass | ✓ | ✓ | ✓ | ✓ |
| TPE/TPR | ✓ | ✗ | ✗ | ✓ |
Toy cleaner sprays (like those from Sliquid or Wicked Sensual) are effective on all materials and convenient for travel. They don’t replace thorough washing, but they’re a good supplementary option.
The Bottom Line
The materials question in sex toys is simpler than the industry makes it appear. Stick to silicone, steel, glass, or ABS. Avoid jelly and be skeptical of anything described as a “blend.” When in doubt, use a condom.
The price difference between safe and unsafe materials has narrowed significantly. A good 100% silicone vibrator now costs $35–$50. That’s a reasonable investment for something in direct contact with your body’s most sensitive and absorptive tissue.
