# Which Dildo Material Is Best? By Emma · Wellness Basics · 2026-08-15 Silicone, glass, and surgical steel are the three non-porous materials worth your money, and the difference between them is give, weight, and temperature. Here is how to read a material claim before you buy. Two dildos sit side by side in the same search results. Same length, same curve, near enough the same color. One costs four times the other, and the cheaper listing explains the gap with two words: body-safe. Nothing after that says what the thing is actually made of. Material is the one spec you cannot change after it arrives. Shape you adapt to, size you grow into, firmness you learn to work with. A porous surface stays porous for the life of the toy, and that property alone decides how clean it gets, which lube it takes, and how long you keep it. ## What is the best dildo material? Platinum or medical grade silicone, borosilicate glass, and surgical stainless steel. Those three are non-porous, which means bacteria have nowhere to hide and a proper wash actually finishes the job. Nothing soaks in. Silicone is where I start almost everyone: it warms to you, it has give, it forgives a wrong angle. Glass and steel trade that give for weight, firmness, and temperature you control. Everything else on the shelf is a compromise you should make knowingly, not by accident. ## What does porous actually mean on a dildo? Porous means the surface holds microscopic openings you will never see. Bodily fluid, lube, and skin cells settle into them. Soap and water reach the surface and stop, so a porous toy gets cleaner, never clean. Over months the material breaks down, goes tacky, and starts to smell faintly sweet or chemical no matter how carefully you wash it. Non-porous is the opposite and it is binary. A sealed surface has nothing to absorb into. You wash it, you dry it, you put it away, and what you take out next time is the same toy you put in. One caveat worth naming plainly. Irritation, unusual discharge, or itching that persists after you have switched materials is not a shopping problem. Book a clinician and let them look. ## What makes silicone the default choice? Silicone hits the widest band of what people want from a dildo. It is non-porous, chemically stable, and unbothered by heat, so a piece with no motor inside goes in boiling water or on the top rack of a dishwasher and comes out sterile. It takes a matte or satin finish that reads as skin rather than plastic. It comes in a firmness range from soft enough to squeeze to rigid enough to hold a curve under pressure. Two labels matter on the listing. Look for a single material named outright, ideally with a percentage. Look for the word platinum or the phrase medical grade attached to the silicone itself, not to the toy in general. A listing that says silicone blend, silicone feel, or body-safe silicone-like material is telling you it is not. The Tantus [Acute](https://xdipx.com/products/tantus-acute-5-5-in-curved-dildo-medium-firm-night-sky) is a clean example of the category done properly. The spec names 100 percent health grade silicone and nothing else, the firmness is medium so the curve holds its shape without going rigid, the base is flared and harness compatible, and the whole piece is dishwasher safe. Nothing about it is exotic, and I would not want a first non-porous piece to be. **Product pick:** [Take a peek →](https://xdipx.com/products/tantus-acute-5-5-in-curved-dildo-medium-firm-night-sky) ## What does glass do that silicone does not? Glass gives you two things silicone never will: absolute firmness and temperature. Borosilicate is the grade to want, the same family used in laboratory glassware, and it handles thermal shock without stressing. Run a glass piece under warm water and it holds that warmth through a whole session. Rest it in cool water and the first contact reads as a sharp, bright shock that fades into something steady. Firmness is the other half. Glass transmits pressure exactly where you aim it, with no flex bleeding the sensation sideways. For anyone chasing a specific internal spot, that precision is the whole argument. Glass is also the easiest material to live with. It is compatible with every lube ever made, it boils clean, and it does not care what it is stored next to. The one habit to build: run your fingers over the whole surface before each use and look at it in good light. A chip or a hairline crack means it is finished, and no repair is worth attempting. The Biird [Kalii](https://xdipx.com/products/biird-kalii-glass-g-spot-dildo) is built for the precision case. Borosilicate, a pronounced curve, and shallow ribs that register clearly because the material behind them never gives. Warm it first and the ribs arrive soft. Chill it and they arrive with an edge. Same toy, two entirely different evenings. **Product pick:** [Find your fit →](https://xdipx.com/products/biird-kalii-glass-g-spot-dildo) ## Are stainless steel dildos body-safe? Yes, when the steel is a surgical grade such as 316L or 304. Those alloys are non-porous, corrosion resistant, and bind their nickel content into the alloy rather than leaving it free to migrate, which is what makes them standard in surgical instruments and body jewelry. Steel boils, autoclaves, and survives being dropped on a tile floor. Weight is what you are actually buying. A steel piece carries real heft, and that mass creates pressure without any effort from you. Some people love it immediately and some find it too much within a minute. Both reactions are normal and neither predicts the other. The same alloy question applies to a steel vibrator, with one addition. On a motorized piece, check where the steel ends. Seams, a plastic control cap, or a silicone gasket are the parts that decide whether the whole thing is washable, so read the material list to the end rather than stopping at the headline. ## Which dildo materials should you skip? Jelly, TPE, TPR, PVC, elastomer, and anything sold simply as rubber. All of them are porous. Jelly and soft PVC have the added history of phthalate softeners, a family of plasticizers that several jurisdictions have restricted in children's products and that reputable makers now leave out on principle. Two tells give a porous toy away before you buy. A strong chemical or vanilla smell through the packaging means the material is off-gassing. A surface that feels slightly oily or tacky straight out of the box means the softeners are already migrating out. If you already own one, you do not have to throw it out today. Roll a condom onto it every single time. Store it on its own, because the softeners it sheds migrate into other soft materials, and a silicone piece left touching it comes away with sticky patches. Glass and steel are inert and sit next to it untouched. Replace it sooner than you would replace silicone. A fresh condom is genuine risk reduction and it is the standard mitigation for sharing a toy between partners, so if a porous piece is being shared, that barrier is not optional. Our house line goes further than the standard one: keep a porous toy to one body. ## How do you check a material claim before you buy? Read the specification block, not the description. Marketing copy says luxurious and premium; a specification block names one material or admits it cannot. Three questions settle it quickly. Is exactly one material named? A single named material is the strongest signal on any listing, and a percentage next to it is stronger still. Does the brand say where it is made and what grade? Makers who invest in platinum cure silicone or borosilicate say so loudly, because the cost sits in the material. Does the care instruction match the claim? A toy that is genuinely 100 percent silicone tells you it boils. A glass piece tells you it takes any lube. When a listing claims a premium material but hedges the care instructions, believe the care instructions. Our [body-safe silicone](https://xdipx.com/collections/body-safe-silicone) collection and the wider [dildos](https://xdipx.com/collections/dildos) shelf both spell out what each piece is made of, and I would rather you compared specification blocks than took ours on faith. ## Does the material change which lube you use? It changes it for exactly one pairing. Silicone lube on a silicone toy leaves the surface tacky over time, because the two silicones interact at the surface. Water based lube on silicone avoids the question entirely, which is why it is the standing house recommendation. Glass and steel are indifferent: water based, silicone based, hybrid, all fine. If you are working out which bottle belongs with which piece, our [lubricants](https://xdipx.com/collections/lubricants) shelf sorts by base. One more pairing worth knowing. Oil based lube destroys latex condoms, so if a porous toy is living under a condom, the lube stays water based. ## Frequently asked questions ### Is medical grade silicone a regulated term? Not for sex toys. In the United States these products are sold as novelties and sit outside the device regulations that govern surgical silicone, so no agency audits the phrase on a package. It still carries real information when a reputable brand uses it, because that brand is staking its name on the claim. Treat it as a signal from the maker rather than a certification from a regulator. ### Can you boil a dildo? A piece that is 100 percent silicone with no motor, no battery, and no electronics inside boils for a few minutes without harm. Borosilicate glass and surgical steel boil too. Anything with a motor, a charging port, or a mixed-material seam never goes in water above a warm rinse. ### What materials are safe for intimate wellness toys? Silicone, borosilicate glass, surgical stainless steel, and hard ABS plastic. ABS is the rigid plastic used on bullet casings and control handles, and it is non-porous and stable even though it lacks the warmth of the other three. Those four cover the entire honest range. ### Are stainless steel vibrators body-safe? The steel is, at 316L or 304. What decides the toy is the rest of it. A vibrator combines steel with a motor housing, a seal, and usually a control surface, so the weakest material in the assembly sets the standard for the whole piece. Read the full material list and check the waterproof rating before you decide how to clean it. ### Should a brightly colored silicone piece worry you? Colorant is bound into silicone during curing and stays put in a properly made piece. Pigment that rubs off on a cloth, or bleeds into a lighter toy stored beside it, points at a cheap cure rather than at the color itself. Store pieces apart whatever they are made of and the question stops mattering. ### How long does a silicone dildo last? Years, with ordinary care. Short of a cut, a tear, or the surface tackiness that silicone lube leaves behind, silicone has nothing that wears out, so a non-motorized piece washed after each use and stored dry outlives most of the rest of your drawer. Retire it when the surface is nicked, split, or gone tacky, because a break in the surface is a break in the non-porous seal. We would rather you replaced one piece on schedule than kept a compromised surface in rotation. ### Is a dual density dildo still non-porous? Yes, when both densities are silicone. Dual density means a firmer inner core under a softer outer layer, giving you a piece that flexes like skin and holds shape like bone. Both layers are the same base material, so the sealed surface is unbroken. Check that the listing names silicone for the whole construction and not just the skin, because a soft outer layer of something else is where I see the claim quietly fall apart. --- Canonical: https://xdipx.com/notebook/which-dildo-material-is-best Last updated: 2026-08-15 xdipx.com is an editorially curated sexual wellness storefront. Support: hello@xdipx.com. Billing descriptor: XDIPX.