Medical Grade Silicone: Who Issues That Grade?

By Alex Hart · Last updated 2026-08-11

Ten results, taken from the first page of Google for this query on 11 August 2026. Eight of them could be retrieved and read. All eight use the words medical grade, and five of them name no standard, specification or regulation you could go and look up. The three that do name something do not name the same something.

The phrase is not invented. It is in federal regulation. It occurs in six places across all fifty titles of the Code of Federal Regulations, and not one of the six says what it means.

Research-based, not hands-on (how we review) · This page carries no affiliate links, names no products as picks, and nothing below was shown to any manufacturer before publication · We may earn a commission on Lovense products through our app-controlled vibrator guide; the full list of programmes we are in is on our disclosure page

Quick take: No agency grades silicone. Where federal regulation genuinely needs the phrase to do work, it names somebody else’s document in the same breath: OSHA’s cotton dust standard grants an exemption to “Medical grade (USP) cotton,” a mandatory appendix to its commercial diving standard pins medical-grade oxygen to a named pharmacopeia and a numbered commodity specification inside one clause, and the surgical-implant literature ties medical-grade titanium to ASTM F67. Nothing does that for silicone. Three page-one pages reach for a version of the same credential, writing it as USP Class VI, class VI silicone and certified Grade VI, and the exact phrase USP Class VI appears nowhere in the Code of Federal Regulations. The standard FDA really does invoke, ISO 10993, occurs in nineteen sections of the Code and every one of them is a device classification, and the one classification a vibrator could land in is not among them. So the useful question is not whether the silicone is good. It is whether anyone will name the document, and on this page of results five sellers out of eight will not.

One thing this is not. It is not a claim that silicone is unsafe, that these products are dangerous, or that the sellers using the phrase are wrong about the material. Silicone is a reasonable material for this, for reasons that survive the vocabulary: it is non-porous, it takes heat, and the published measurements that exist are about what a specific product shed rather than about the polymer as a class. Our materials page covers that evidence. The narrow claim here is about a phrase and about who stands behind it.

Six places in the whole Code of Federal Regulations

The eCFR search interface runs full text across every title. Searched on 11 August 2026 for the exact phrase, and counted by distinct location rather than by the number of rows the interface returns, “medical grade” occurs in six places. Searching the hyphenated spelling returns an identical set, so nothing is hiding behind a hyphen.

Four are in Title 21, which is FDA’s, and three of those four are orthopedic implants. Here are all six:

Read the right-hand column as a set. In every Title 21 entry the phrase is doing description, not definition. The regulation is classifying a device, and while it does so it mentions what the device happens to be made of. Section 888.3025 makes this especially plain: within a single sentence it says “silicon elastomer” and “medical grade silicone elastomer” and draws no distinction between them, which is not how a regulation behaves when a term is load-bearing.

The fourth Title 21 entry is the one worth pausing on, because it is the only place in the Code where the phrase appears inside a section whose heading is literally “Definitions.” What is being defined there is a retainer ring, a foam pad used with adhesive bandage strips over an ingrown toenail. “Medical grade” is an adjective inside the definition of something else. The section defines the pad; nobody defines the adhesive.

That leaves the two entries in Title 29, and they are the interesting half. Both name their issuing documents inside the sentence. OSHA does not say medical grade cotton and leave it there. It says “Medical grade (USP) cotton,” and it says so in the clause that exempts that cotton from an entire safety standard, which is real consequence attaching to a real reference. The diving appendix, which the Code marks Mandatory and which the table above quotes in full, names two at once: the United States Pharmacopeia, and a numbered specification from the Compressed Gas Association, an organisation OSHA identifies by name and street address in its own incorporation-by-reference section (29 CFR 1910.6(l), eCFR, retrieved 11 Aug 2026). When a federal rule actually needs these words to carry weight, this is what it looks like.

The three regulations about silicone implants do not define the phrase either

Two of the five page-one pages that name no standard reach for implants anyway. Tracy’s Dog writes that “Medical-grade silicone is silicone that meets the same safety standards as medical devices like catheters and implants” (Tracy’s Dog, Medical-Grade Silicone: The Only Safe Sex Toy Material?, 23 Dec 2025, retrieved 11 Aug 2026). Hello Nancy writes that “True medical-grade silicone meets the standards used in surgical implants and medical devices” (Hello Nancy, Medical-Grade Silicone Toys: Why They’re Absolutely Worth Every Penny, 22 Jul 2026, retrieved 11 Aug 2026). Neither names a standard.

The comparison is checkable, and it does not go where either page needs it to. The implants in question are the first three rows of the table above. Three regulations in Title 21 do describe a device made of medical grade silicone elastomer and implanted in a human body, and all three use the phrase exactly the way the retailers do, as an adjective they assume the reader will accept. The federal rules governing silicone implants are not a definition of medical grade silicone. They are three more places where the phrase is used without one.

Tracy’s Dog goes further than the analogy. It states that the material “has to pass strict FDA biocompatibility testing, proving it’s safe for long-term contact with human tissue,” and lists under safety certifications that “It meets FDA regulations for biocompatibility.” FDA does not run a biocompatibility test that a silicone can be submitted to and pass. What exists is a standard, ISO 10993, and where it attaches is the subject of a section below.

USP Class VI appears nowhere in the Code of Federal Regulations

Three of the eight pages we could read do name something. Holistic Wisdom says medical-grade silicones “are technically referred to as medical-healthcare grade, class VI silicone which has been tested for biocompatibility” (Holistic Wisdom, Silicone Sex Toys: Is Yours Real & Safe?, retrieved 11 Aug 2026). Fuze Toys says its products are made with “100% certified Grade VI, medical grade, platinum cured silicone and FDA approved colours” (Fuze Toys, Why Silicone, retrieved 11 Aug 2026). And Erotixxx Toys, the best-sourced page on the result set, lists “USP Class VI Certification” first and calls it “the gold standard for biocompatibility testing” (Erotixxx Toys, Platinum Silicone vs Medical-Grade Silicone, retrieved 11 Aug 2026).

Searched across all fifty titles on 11 August 2026, the phrase “USP Class VI” returns nothing. Not in FDA’s title, not in OSHA’s, not anywhere.

That is not a reason to dismiss it. USP Class VI is a real protocol, published by the United States Pharmacopeia, which is a private standards organisation rather than an agency, and a laboratory can run those tests on a material and report the result. But two things follow from the zero. It is not a federal designation, so a page calling it a certification is describing a test result the seller or its supplier paid for, which is a different kind of object from a licence somebody grants. And nobody in the chain is obliged to hold one, though the zero is not what shows that. What shows it is the section below on ISO 10993: the requirement that could have applied attaches to device classifications, and a vibrator sold as a vibrator is not in one.

There is also a question of who ever runs the tests. A 2016 review of polymer neural implants in Micromachines calls USP Class VI and ISO 10993 “two standards by which to measure the biocompatibility of a material,” then adds that “the rigorous tests required to achieve these standards are rarely performed by the material manufacturer” and that “the biocompatibility of a polymer must be investigated by the end-user prior to design or fabrication” (Weltman, Yoo and Meng, Micromachines, 4 Oct 2016, PMC6190320, retrieved 11 Aug 2026). That is about probes going into brain tissue, and it says nothing about any consumer product. What it does show is that the paperwork behind the phrase is not automatic even in the field the phrase is borrowing its authority from.

Erotixxx Toys is also the page that tells readers to ask: “Always look for specific safety certifications like USP Class VI, not just vague ‘medical-grade’ claims.” That is the right instruction, and it comes from the page on this result set that does the most work. It names four documents in all: USP Class VI, ISO 10993, FDA CFR 177.2600 and EPI-200-SIT. Two of the four are taken apart below, and that is possible only because it named them.

Erotixxx Toys names a federal regulation, and it is about food

Of those four, one is federal, and here is how the page describes it: “FDA CFR 177.2600 Compliance: This FDA regulation applies to rubber articles intended for repeated use in contact with food or the human body.”

Here is how 21 CFR 177.2600 opens: “Rubber articles intended for repeated use may be safely used in producing, manufacturing, packing, processing, preparing, treating, packaging, transporting, or holding food, subject to the provisions of this section” (21 CFR 177.2600, eCFR, retrieved 11 Aug 2026). The section sits in the part of Title 21 covering indirect food additives. Food is the whole of its operative scope. The human body is not in the sentence, and the regulation does not extend to skin, mucosa or implantation.

This is the shape the whole subject keeps taking. A page reaches for a real document, and the document turns out to be about something adjacent. Our piece on the IPX7 marking found the same pattern in a rating that certifies one immersion test and gets read as a promise about showers, and the piece on boiling found it in a verb that has a federal definition none of the twelve guides we read there mentioned.

ISO 10993 is real, and it is bolted to a device list

There is one standard FDA genuinely leans on, and it is the one Erotixxx Toys names second: ISO 10993, Biological Evaluation of Medical Devices. Searched as an exact phrase on 11 August 2026, it occurs in nineteen sections of the Code of Federal Regulations. All nineteen sit in Title 21, and all nineteen sit inside a device classification part: cardiovascular, dental, gastroenterology and urology, obstetrical and gynecological, ophthalmic, orthopedic, physical medicine. Not one of them is a rule about silicone. Every one is a special control written into the classification of a particular device type, which means it binds a product because of what that product is for, not because of what it is made of.

Part 884 of Title 21 covers obstetrical and gynecological devices, and it is where a vibrator would have to live if it lived anywhere. Searched on 11 August 2026, exactly five sections of Part 884 reference ISO 10993: the endometrial aspirator (884.1060), the endometrial brush (884.1100), the endometrial washer (884.1185), endoscopic electrocautery and accessories (884.4100), and the bipolar endoscopic coagulator-cutter (884.4150). All five are instruments that enter the body.

Section 884.5960, “Genital vibrator for therapeutic use,” is not among the five. Its full text runs to three sentences: it identifies “an electrically operated device intended and labeled for therapeutic use in the treatment of sexual dysfunction or as an adjunct to Kegel’s exercise,” puts it in Class II, and exempts it from premarket notification subject to the limits in 884.9 (21 CFR 884.5960, eCFR, retrieved 11 Aug 2026). There is no biocompatibility requirement in it. And as our page on FDA approval sets out at more length, a vibrator sold as a vibrator rather than labelled for therapeutic use does not appear to fall in that classification at all, which puts it one step further from the only paragraph that could have imposed anything.

So the standard exists, FDA does use it, and the route by which it would reach the object in question runs through a door that is not there.

Registered, cleared, approved

One more page belongs here, from a different query. Searching for what is medical grade silicone on the same day puts Intimate Rose fourth, and the page says: “Currently, Intimate Rose is the only producer of medical-grade silicone kegel weights, pelvic wands, and vaginal dilators on the market that have been FDA-registered and approved” (Intimate Rose, Medical Grade Silicone: What It Is & Why We Use It, retrieved 11 Aug 2026).

FDA has a regulation about that pairing. 21 CFR 807.39, headed “Misbranding by reference to establishment registration or to registration number,” reads in full: “Registration of a device establishment or assignment of a registration number does not in any way denote approval of the establishment or its products. Any representation that creates an impression of official approval because of registration or possession of a registration number is misleading and constitutes misbranding” (21 CFR 807.39, eCFR, retrieved 11 Aug 2026).

FDA has a matching rule for the second word. 21 CFR 807.97 says a determination of substantial equivalence “does not in any way denote official approval of the device,” and its next sentence reads: “Any representation that creates an impression of official approval of a device because of complying with the premarket notification regulations is misleading and constitutes misbranding” (21 CFR 807.97, eCFR, retrieved 11 Aug 2026). So the agency has one rule for registration and a separate one for clearance, and neither of them produces the word approved.

The company’s regulatory position is nonetheless real, and it is the paperwork the words were reaching for. FDA’s 510(k) database, queried on 11 August 2026, returns three clearances to Plus EV Holdings dba Intimate Rose: K231430 and K241748 for Intimate Rose Vaginal Dilators, dated 7 June 2023 and 14 August 2024, and K193364 for the Intimate Rose Kegel Exercise System, dated 24 August 2020, all decided Substantially Equivalent (openFDA 510(k) API, queried 11 Aug 2026). Those are genuine, and the word for them is cleared.

Nor is this the only clearance holder on the result set. The Bloomi, which ranks first for the primary query, holds two: K222175 and K221328, both personal lubricants, decided in November and August 2022 (openFDA 510(k) API, queried 11 Aug 2026). Its vibrator collection page says “Made with smooth medical-grade silicone” and names nothing further (The Bloomi, Vibrators, retrieved 11 Aug 2026). Bloomi does not pair the two words the way the sentence above does, and nothing on its page invokes either clearance. So a company can hold real FDA paperwork on one product and still describe a different product with an adjective nobody issues.

None of this is a quibble about wording. Here is a seller holding three real submissions FDA acted on, more than we found for anyone else across these three queries, and none of it grades the silicone. A 510(k) clearance is a finding about a finished device and the predicate it resembles. Nobody, at any point in that process, hands out the phrase on the box.

When the phrase does mean something, somebody named the document

It would be easy to read all of this as proof that “medical grade” is always empty. It is not. It is empty when nobody names the specification, and in other fields people do.

In surgical implants the phrase is pinned to a number. A 2025 review of implant integration states that “ASTM F67 is a standard specification for unalloyed titanium and titanium alloy for surgical implant applications (medical grade)” (Ogawa et al., The 3D theory of osseointegration, International Journal of Implant Dentistry, 2 Aug 2025, PMC12317956, retrieved 11 Aug 2026). Somebody can go and read ASTM F67 and check a titanium bar against it.

And where a field has looked at the phrase as a consumer-facing claim, it has reached the conclusion this article is documenting. The Tear Film and Ocular Surface Society’s workshop report on cosmetics, published in The Ocular Surface, lists the term among marketing language: “Terminology associated with premium cosmetic products includes ‘medical grade’ which is not a regulated term bound by definitions, rules or industry standards” (Sullivan et al., TFOS Lifestyle: Impact of cosmetics on the ocular surface, The Ocular Surface, 13 Apr 2023, PMC11246752, retrieved 11 Aug 2026). That statement is about cosmetics rather than about silicone, and it is quoted here for what it says about the phrase, not as a finding about this product category.

Holistic Wisdom, on the sex-toy SERP, draws the adjacent line correctly and deserves the credit: “While sex toy manufacturers can use FDA-approved grades of silicones and pigments to make their products, it does not make sex toys FDA approved.” That is the distinction the other seven pages we could read do not draw.

What to do with this

Treat “medical grade” as information about the seller’s vocabulary rather than about the object. It is not a lie and it is not a licence; it is a word that no agency reviews before it is printed. When a seller will name a document, that is worth something: a supplier’s USP Class VI test report is a real report, a 510(k) number can be looked up in a public database in a few seconds, and a stated cure system can be compared against what the company says elsewhere. When a seller will not name one, the phrase is carrying the whole weight of its own reputation, which for five of the eight pages on this result set is the entire evidentiary basis on offer.

There is a second caution, about what any of these documents would prove even if produced. A biological reactivity test is run on a material sample. What you buy is a moulded, pigmented, finished object, and a 510(k) clearance, the strongest paperwork we found across these three queries, attaches to that finished device and not to the polymer. The published measurement that actually exists on this category, a 2023 study that abraded four purchased products and analysed the residue, found phthalates in all four including the one bought precisely because its packaging said medical grade silicone. That study is covered on our materials page, and four products cannot rank materials against each other. It is a reason to disbelieve the adjective, not the polymer.

Limits of this piece

We did not test any silicone, and nothing here measures a product. This site does not do hands-on testing, which is set out on how we review.

The census covers the ten organic results for one query on one day in one country. Two of the ten could not be read: the Amazon listing returns a client-rendered shell, and Reddit returned an error and then a shell as well. No claim above describes what either page says, including the Reddit thread whose search snippet points the same way this article does. Page-one results move, and a reader checking this next month may see a different ten.

We did not read the text of USP Class VI or of ISO 10993. Both sit behind paywalls, and the honest description of what we did is that we searched the Code of Federal Regulations for references to them, read the regulations that resulted, and quoted one peer-reviewed review that describes both. Where this page says what ISO 10993 does, it is reporting how Title 21 uses it, not summarising the standard. We also did not look up EPI-200-SIT, the fourth identifier Erotixxx Toys names. It is counted on this page and not assessed, and nothing above says what it covers or what passing it would mean.

Nothing here is a legal conclusion about any company. Setting 21 CFR 807.39 or 807.97 beside a company’s sentence is not a determination that the sentence breaks either one, and naming a company that holds clearances is not a suggestion that it has misused them. Those calls are not ours to make.

Common questions

Is medical grade silicone a real certification?

No body issues it. We ran a full-text search of all fifty titles of the Code of Federal Regulations on 11 August 2026 and the phrase occurs in six places. Three are identifications of implanted orthopedic prostheses in 21 CFR Part 888, one is the adhesive on a foam pad in the subpart covering ingrown toenail products, one is a cotton exemption in OSHA’s cotton dust standard, and one is in a mandatory appendix to OSHA’s commercial diving standard. Not one of the six defines it. The two in Title 29 pin it down by naming somebody else’s document inside the sentence: OSHA writes “Medical grade (USP) cotton,” and the diving appendix requires oxygen meeting “medical USP oxygen (Type I, Quality Verification Level A) of CGA G-4.3-2000.” Nothing in the Code assigns a grade to silicone, and no agency reviews the word before it goes on a box.

What does USP Class VI actually certify?

It is a set of biological reactivity tests published by the United States Pharmacopeia, a private standards organisation, and it is run on a material rather than granted to a company. That distinction matters less than a simpler fact: the phrase “USP Class VI” does not appear anywhere in the Code of Federal Regulations, in any of the fifty titles. It is a real test protocol that a real laboratory can run, and the best-sourced page on this result set tells readers to demand it by name. It is not a federal designation, and a page calling it a certification is describing something closer to a lab report the seller commissioned.

Does the FDA test silicone for biocompatibility?

Not as a service to material suppliers, and not for consumer products. The standard the agency leans on is ISO 10993, and searched as an exact phrase it occurs in nineteen sections of the Code of Federal Regulations, all of them in Title 21 and all of them inside a device classification part. Every one is a special control attached to a named device type rather than a rule about silicone. Within 21 CFR Part 884, obstetrical and gynecological devices, five sections carry it: the endometrial aspirator, brush and washer, and two endoscopic cutting instruments. Section 884.5960, genital vibrator for therapeutic use, is not one of them and contains no biocompatibility requirement at all. The page ranking sixth for this query says the material has to pass strict FDA biocompatibility testing. There is no such test to pass for a product sold as a vibrator.

What does 21 CFR 177.2600 cover?

Food. Its first line reads: “Rubber articles intended for repeated use may be safely used in producing, manufacturing, packing, processing, preparing, treating, packaging, transporting, or holding food, subject to the provisions of this section.” It is a food-contact regulation and its operative scope is food. The best-sourced page on this SERP cites it, correctly identifying it as one of the documents behind the phrase, but describes it as applying to rubber articles in contact with “food or the human body.” The human body is not in the sentence.

Is FDA-registered the same as FDA-approved?

FDA has a regulation on exactly this. 21 CFR 807.39 says registration “does not in any way denote approval of the establishment or its products,” and that any representation creating an impression of official approval on that basis “is misleading and constitutes misbranding.” The two words get paired anyway. One company cited for this query writes that its products are “FDA-registered and approved”; its clearances are real and are listed in FDA’s own 510(k) database, and the accurate word for them is cleared, because a second rule, 21 CFR 807.97, says a determination of substantial equivalence does not in any way denote official approval of the device either. Either way a clearance attaches to a finished device, not to the silicone it is made from, so it is not an answer to the question this page asks. Setting either of those two regulations beside a company’s sentence is not a determination that the sentence breaks it, and that call is not ours to make.