Intended for penile and/or vaginal application, intended to moisturize and lubricate, to enhance the ease and comfort of intimate sexual activity and supplement the body's natural lubrication. This product is compatible with natural rubber latex and polyisoprene condoms. This product is not compatible with polyurethane condoms.
Device Story
K-Y Marilyn Pleasure Gel is a non-sterile, water-based personal lubricant; intended for OTC use to moisturize and lubricate during intimate sexual activity. Formulation includes water, glycerin, propylene glycol, hydroxyethylcellulose, PEG-40 hydrogenated castor oil, flavor, benzoic acid, and sodium hydroxide. Packaged in PET bottles with PP pump and cap. Applied topically by the user to penile and/or vaginal areas. Provides physical lubrication to reduce friction; enhances comfort during sexual activity. Compatible with natural rubber latex and polyisoprene condoms; incompatible with polyurethane condoms.
Clinical Evidence
Bench testing only. Biocompatibility testing performed per ISO 10993-10 (vaginal irritation, delayed dermal sensitization) and ISO 10993-11 (systemic toxicity). In vitro cytotoxicity testing performed per USP <87>. Condom compatibility testing performed per ASTM D7661-10. Results confirmed device is non-irritating, non-sensitizing, non-cytotoxic, and compatible with natural rubber latex and polyisoprene condoms.
Indicated for penile and/or vaginal application to moisturize and lubricate, enhancing ease and comfort of intimate sexual activity and supplementing natural lubrication. Compatible with natural rubber latex and polyisoprene condoms; not compatible with polyurethane condoms.
Regulatory Classification
Identification
A condom is a sheath which completely covers the penis with a closely fitting membrane. The condom is used for contraceptive and for prophylactic purposes (preventing transmission of sexually transmitted infections). The device may also be used to collect semen to aid in the diagnosis of infertility.
Special Controls
*Classification.* (1) Class II (special controls) for condoms made of materials other than natural rubber latex, including natural membrane (skin) or synthetic.(2) Class II (special controls) for natural rubber latex condoms. The guidance document entitled “Class II Special Controls Guidance Document: Labeling for Natural Rubber Latex Condoms Classified Under 21 CFR 884.5300” will serve as the special control. See § 884.1(e) for the availability of this guidance document.
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Image /page/0/Picture/1 description: The image shows the logo for the U.S. Department of Health & Human Services. The logo consists of a circular seal with the text "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" arranged around the perimeter. Inside the circle is a stylized image of three human profiles facing to the right, layered on top of each other to create a sense of depth and unity.
Food and Drug Administration 10903 New Hampshire Avenue Document Control Center - WO66-G609 Silver Spring, MD 20993-0002
January 11, 2016
Reckitt Benckiser LLC Elizabeth Torre Regulatory Operations Lead 399 Interpace Parkway Parsippany, NJ 07054
Re: K151884 Trade/Device Name: K-Y® Marilyn Pleasure Gel Regulation Number: 21 CFR 884.5300 Regulation Name: Condom Regulatory Class: Class II Product Code: NUC Dated: December 2, 2015 Received: December 3, 2015
Dear Elizabeth Torre,
We have reviewed your Section 510(k) premarket notification of intent to market the device referenced above and have determined the device is substantially equivalent (for the indications for use stated in the enclosure) to legally marketed predicate devices marketed in interstate commerce prior to May 28, 1976, the enactment date of the Medical Device Amendments, or to devices that have been reclassified in accordance with the provisions of the Federal Food. Drug, and Cosmetic Act (Act) that do not require approval of a premarket approval application (PMA). You may, therefore, market the device, subject to the general controls provisions of the Act. The general controls provisions of the Act include requirements for annual registration, listing of devices, good manufacturing practice, labeling, and prohibitions against misbranding and adulteration. Please note: CDRH does not evaluate information related to contract liability warranties. We remind you, however, that device labeling must be truthful and not misleading.
If your device is classified (see above) into either class II (Special Controls) or class III (PMA), it may be subject to additional controls. Existing major regulations affecting your device can be found in the Code of Federal Regulations, Title 21, Parts 800 to 898. In addition, FDA may publish further announcements concerning your device in the Federal Register.
Please be advised that FDA's issuance of a substantial equivalence determination does not mean that FDA has made a determination that your device complies with other requirements of the Act or any Federal statutes and regulations administered by other Federal agencies. You must comply with all the Act's requirements, including, but not limited to: registration and listing (21 CFR Part 807); labeling (21 CFR Part 801); medical device reporting (reporting of medical devicerelated adverse events) (21 CFR 803); good manufacturing practice requirements as set forth in
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the quality systems (OS) regulation (21 CFR Part 820); and if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR 1000-1050.
If you desire specific advice for your device on our labeling regulation (21 CFR Part 801), please contact the Division of Industry and Consumer Education at its toll-free number (800) 638-2041 or (301) 796-7100 or at its Internet address
http://www.fda.gov/MedicalDevices/ResourcesforYou/Industry/default.htm. Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21 CFR Part 807.97). For questions regarding the reporting of adverse events under the MDR regulation (21 CFR Part 803), please go to
http://www.fda.gov/MedicalDevices/Safety/ReportaProblem/default.htm for the CDRH's Office of Surveillance and Biometrics/Division of Postmarket Surveillance.
You may obtain other general information on your responsibilities under the Act from the Division of Industry and Consumer Education at its toll-free number (800) 638-2041 or (301) 796-7100 or at its Internet address
http://www.fda.gov/MedicalDevices/ResourcesforYou/Industry/default.htm.
Sincerely yours,
# Herbert P. Lerner -S
for
Benjamin R. Fisher, Ph.D. Director Division of Reproductive, Gastro-Renal, and Urological Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
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# Indications for Use
510(k) Number (if known) K151884
Device Name K-Y® Marilyn Pleasure Gel
Indications for Use (Describe)
Intended for penile and/or vaginal application, intended to moisturize and lubricate, to enhance the ease and comfort of intimate sexual activity and supplement the body's natural lubrication. This product is compatible with natural rubber latex and polyisoprene condoms. This product is not compatible with polyurethane condoms.
| Type of Use (Select one or both, as applicable) | | | |
|-------------------------------------------------|------------------------------------------------|--|--|
| Prescription Use (Part 21 CFR 801 Subpart D) | 【X】Over-The-Counter Use (21 CFR 801 Subpart C) | | |
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Image /page/3/Picture/0 description: The image shows the logo for RB, a company focused on health, hygiene, and home products. The logo features a pink triangle pointing upwards with the letters "rb" in white inside. Below the triangle, the words "HEALTH HYGIENE HOME" are written in a simple, sans-serif font, with small triangles separating each word.
# 510(k) Summary
| Submitted by: | Reckitt Benckiser, LLC |
|----------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| | 399 Interpace Parkway<br>Parsippany, NJ 07054-0224<br>973-404-2715<br>973-404-5702 |
| Contact Person: | Elizabeth Torre, Regulatory Operations Lead, Reckitt Benckiser, LLC. |
| Date Prepared: | January 4, 2016 |
| Proprietary Name: | K-Y ® Marilyn Pleasure Gel |
| Trade Name: | K-Y ® Marilyn Pleasure Gel |
| Common Name: | Personal Lubricant |
| Classification Name: | Lubricant (21 CFR §884.5300, Product Code NUC) |
| Predicate Device(s): | KY® Brand Liquid Reckitt Benckiser LLC<br>Product Code: NUC<br>510(k) No.: K955648<br>Durex® Embrace Warming Sensation Gel<br>Reckitt Benckiser LLC<br>Product Code: NUC<br>510(k) No.: K140193<br>Durex® Embrace Tingling Experience Gel<br>Reckitt Benckiser LLC |
Product Code: NUC 510(k) No.: K140193
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Image /page/4/Picture/0 description: The image shows the logo for RB, which stands for Reckitt Benckiser. The logo features a pink abstract shape resembling a stylized letter 'r' and 'b' stacked on top of each other. Below the logo, the words "HEALTH HYGIENE HOME" are written in a simple, sans-serif font, with heart symbols separating the words.
#### Description of the Device:
KY Marilyn is personal lubricant that is a non-sterile, water-based formulation that provides personal lubrication and stimulation during intimate sexual activity. It is made up of Water, Glycerin, Propylene Glycol, Hydroxyethylcellulose, PEG-40 Hydrogenated Castor Oil, Flavor, Benzoic Acid and Sodium Hydroxide. The subject device is clear in appearance. The specifications for KY Marilyn include appearance, odor, pH, viscosity, benzoic acid, total aerobic microbial count, total yeast and mold count, and absence of pathogenic organisms (Pseudomonas aeruginosa. Staphylococcus aureus, and Candida albicans) and Antimicrobial Effectiveness.
The subject device will be packaged as follows:
- 12 mL Polyethylene terephthalate (PET) bottle ●
- Polypropylene (PP) pump ●
- Polypropylene (PP) snap-on cap ●
- . Outer carton
The device, KY Marilyn, will be marketed as a non-prescription medical device for over-the- counter (OTC) use.
Indications for Use Statement: KY Marilyn is indicated for penile and/or vaginal application, intended to moisturize and lubricate, to enhance the ease and comfort of intimate sexual activity and supplement the body's natural lubrication. This product is compatible with natural rubber latex and polyisoprene condoms. This product is not compatible with polyurethane condoms.
# Summary of Technological Characteristics of New Device in Comparison to Predicate:
Predicate comparison can be seen in Table 1 below.
| 510(k) | Device Name | Intended Use | Indications for Use | Physical | Manufacturer |
|---------|-------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------------------------------------|-----------------------------|
| | | | | Features | |
| K151884 | KY Marilyn | The intended use of this<br>device is for penile and/or<br>vaginal application,<br>intended to moisturize and<br>lubricate, to enhance the<br>ease and comfort of<br>intimate sexual activity and<br>supplement the body's<br>natural lubrication.<br>This device is compatible<br>with natural rubber latex<br>and synthetic<br>Polyisoprene condoms.<br>This device is not<br>compatible with<br>polyurethane condoms. | Intended for penile and/or<br>vaginal application, intended<br>to moisturize and lubricate,<br>to enhance the ease and<br>comfort of intimate sexual<br>activity and supplement the<br>body's natural lubrication.<br>This product is compatible<br>with natural rubber latex and<br>polyisoprene condoms. This<br>product is not compatible<br>with polyurethane condoms. | Homogeneous<br>Clear<br>Gel/Odorless | Reckitt<br>Benckiser<br>LLC |
Table 1: Technological Characteristics of Subject Device Compared to Predicate
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Image /page/5/Picture/0 description: The image shows a logo with the letters 'rb' in lowercase, stylized in a modern, sans-serif font. The letters are a vibrant pink color and are positioned above a pink, triangular shape that resembles an arrowhead pointing downwards. The overall design is simple, clean, and eye-catching, suggesting a brand identity that is contemporary and dynamic.
| K955648 | KY Liquid | The intended use of this<br>device is a personal<br>lubricant (for vaginal and<br>penile application)<br>compatible with latex<br>condoms ONLY. | Intended as a personal<br>lubricant for penile and<br>vaginal application. It is<br>compatible with latex<br>condoms ONLY. | Homogeneous<br>Clear<br>Gel/Odorless | Reckitt<br>Benckiser<br>LLC |
|---------|---------------------------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------------------------------------|-----------------------------|
| K140193 | Durex<br>Embrace<br>Warming<br>Sensation Gel | The intended use of this<br>device is for penile and/or<br>vaginal application,<br>intended to moisturize and<br>lubricate, to enhance the<br>ease and comfort of<br>intimate sexual activity and<br>supplement the body's<br>natural lubrication.<br>This device is compatible<br>with natural rubber latex,<br>synthetic Polyisoprene<br>and polyurethane<br>condoms. | Intended for penile and/or<br>vaginal application, intended<br>to moisturize and lubricate,<br>to enhance the ease and<br>comfort of intimate sexual<br>activity and supplement the<br>body's natural lubrication.<br>Lubricant is compatible with<br>natural rubber latex.<br>synthetic polyisoprene and<br>polyurethane condoms. | Homogeneous<br>Clear<br>Gel/Odorless | Reckitt<br>Benckiser<br>LLC |
| K140193 | Durex<br>Embrace<br>Tingling<br>Experience<br>Gel | The intended use of this<br>device is for penile and/or<br>vaginal application,<br>intended to moisturize and<br>lubricate, to enhance the<br>ease and comfort of<br>intimate sexual activity<br>and supplement the<br>body's natural lubrication.<br>This device is compatible<br>with natural rubber latex,<br>synthetic polyisoprene<br>and polyurethane<br>condoms. | Intended for penile and/or<br>vaginal application,<br>intended to moisturize and<br>lubricate, to enhance the<br>ease and comfort of<br>intimate sexual activity<br>and supplement the body's<br>natural lubrication.<br>Lubricant is compatible<br>with natural rubber latex,<br>synthetic polyisoprene and<br>polyurethane condoms. | Homogeneous<br>Clear Gel/Odorless | Reckitt<br>Benckiser<br>LLC |
Stability: KY Marilyn is shown to have a 9 month shelf life based on 9 month accelerated stability data provided for the formulation. The formulation has met the specification criteria at all temperature conditions.
# Summary of Performance Data:
| Standard Used | Name of Standard | Result | Conclusion |
|-------------------|-----------------------------------------------------------------------------|------------------------------------------------------------------------------------------------------------------|----------------------------------------------------------------------------------|
| ISO 10993-10:2009 | Biological Evaluation and<br>Biocompatibility Testing<br>of Medical Devices | The test article was considered a non-<br>irritant to vaginal tissue of the rabbit. | Device shown to<br>be non-irritating |
| ISO 10993-10:2009 | Biological Evaluation and<br>Biocompatibility Testing<br>of Medical Devices | The test article solution showed no<br>evidence of causing delayed dermal<br>contact sensitization in the guinea | Device shown to<br>be non-sensitizing<br>in guinea pig<br>maximization<br>study. |
#### Table 2: Summary of Performance Data
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Image /page/6/Picture/0 description: The image shows the logo for RB, a health, hygiene, and home company. The logo features a pink triangle with the letters "rb" in white inside. Below the triangle are the words "HEALTH, HYGIENE, HOME" in black with pink triangle bullet points separating the words.
| ISO 10993-11:2009 | Biological Evaluation and<br>Biocompatibility Testing<br>of Medical Devices | The test article was not considered a<br>sensitizer in the guinea pig<br>maximization test. | Device did not<br>cause any<br>mortality or<br>systemic toxicity |
|------------------------|-------------------------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------------------------------------------------------------------------------------------------------------------|
| USP <87> :2015 | Biological Reactivity<br>Tests, in vitro | There was evidence of slight<br>cytotoxicity to the cells exposed to<br>the test item of the subject device. | Device shown to<br>be non-cytotoxic |
| ASTM D7661-10:<br>2010 | Standard Test Method for<br>Determining Compatibility<br>of Personal Lubricants<br>with Natural Rubber latex<br>Condoms | The test results indicate that KY<br>Marilyn (TDS8125708), have passed<br>the condom compatibility test for<br>510(k) condom for 3NRL and PI<br>condoms- with no tests having %<br>difference values > 20%<br>and the<br>majority of results < 10%. | The Device is<br>shown to be<br>compatible with<br>NRL and PI<br>condoms and not<br>compatible with<br>PU condoms. |
Conclusion: Substantial Equivalence of proposed devices can be achieved when the proposed device and the predicate device(s) share the same intended use and the same technological characteristics or when the proposed device and the predicate device(s) share the same intended use with different technological characteristics but when the information submitted to the FDA: 1) does not raise different questions of safety and efficacy of the proposed device and 2) demonstrates that the proposed device is at least as safe and effective as the legally marketed device.
In this case, the predicate devices K140193 and K955648 as well as the proposed device (K151884) share the same intended use for penile and vaginal application for personal lubrication. Based on this information the proposed device and the predicates fall under the FDA Classification NUC for personal lubricant. Both predicates (K140193 and K955648) as well as the proposed device (K151884) are compatible with NRL condoms as per ASTM D7661-10.
Both the proposed device (K151884) and predicate devices K140193 and K955648 are transparent, odorless liquids. They have similar formulation profiles and all contain a thickener, humectant, pH modifier and preservatives. The proposed and predicate devices also share similar technological characteristics including pH and microbial profiles (Specified Organisms Testing). In addition to the technological characteristics, the safety profiles of the proposed and predicate devices are similar. All are non-sensitizing, non-irritating and none are shown to result in mortality or systemic toxicity. All cleared devices have the same fundamental and scientific technology, and based on presented data are considered safe and effective for use. Based on this information, it can be stated that the proposed device is substantially equivalent to the predicate devices.
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Learn the FDA Browser
Two short videos show you everything — or skip straight to the written tutorial if you'd rather read. You can reopen this any time from the Tutorial button in the top bar.
Part 1 — Search, results, and everyday workflows 16 min
Part 2 — Embeddings: the galaxy map 3 min
1. Search: exact and fuzzy
Type a phrase like "coronary artery calcification" into the search box. You get two kinds of results. Exact results match the literal phrase — prefix searches work ("coronary artery calcificati") but suffix searches do not. Fuzzy results match on the meaning and intent of your phrase rather than the exact words, and are sorted by relevance score. Hover over the Exact or Fuzzy badge on any row to see exactly why it matched.
Use the checkboxes above the results to narrow: SaMD keeps only software-only devices, AI / ML keeps only devices with AI.
Exact vs. fuzzy search: what's the difference?
Exact matches on the literal phrase (prefix search works, suffix does not). Fuzzy matches on the meaning and intent of the phrase rather than the exact words. Hover over the badge on any row to see why it matched.
You search "coronary artery calcification" and want only software devices with AI. What two filters do you apply?
Narrow by SaMD (software-only devices), then narrow by AI/ML (devices with AI).
2. The results table
Scroll right in the results table. The intended use is extracted for you — no need to open the PDF. The device story gives a high-level snapshot of what the device does and how it's used. The AI Performance sub-table shows each output name, acceptance criteria, observed values, and development/test dataset descriptions — the same format Innolitics uses for regulatory strategy outputs, and the fastest high-level fingerprint of an AI device. It is AI-generated but has been very reliable in practice.
Where do you find a device's intended use without opening the PDF?
Scroll right in the search results table. The intended use column is extracted for you; no need to dig into the 510(k) summary PDF.
What does the AI Performance sub-table show, and why is it useful?
Output name, acceptance criteria, observed values, development dataset description, and test dataset description. It's the same format we use for regulatory strategy output and Fast 510(k) input, and the fastest high-level fingerprint of an AI device. AI-generated but reliable in practice.
3. Judging fuzzy relevance
Fuzzy results trail off in relevance as you scroll. Use three signals to decide how far down to go: the fuzzy badge explanations, the intended use column, and whether your target output (e.g., Cobb angle) still appears in the AI Performance sub-table. Once it stops appearing, you're past the relevant zone. A top hit with a low score (~0.4) and a stretched explanation is a hint the closest predicates are far away — the project may be headed for De Novo. Note the fuzzy search is a pattern match: it doesn't handle negation ("not") well, and hardware devices can appear — filter by SaMD/AI ML to cut them.
How do you judge how far down fuzzy search results to go?
Use the relevancy signals: the fuzzy badge explanations, the intended use column, and whether the target output (e.g., Cobb angle) still appears in the AI Performance sub-table. Once it stops appearing, results are trailing off in relevancy.
4. Device detail page: chat and citations
Click a device name to open its detail page: device facts on the left, a chat window on the right. Ask something like "Describe the training data". The answer carries little citation bubbles — click one to jump to the highlighted passage in the source PDF, so you can verify every AI answer against the document. There's also a Download PDF button for sharing.
How do you verify an AI chat answer on the device detail page?
Click the citation bubbles to jump to the relevant highlight in the source document.
Reading rule for every project: how many summaries do you read in full?
At least the three most relevant 510(k) or De Novo summaries, in full. After that, use targeted chat questions to confirm your memory quickly. The tool supports this professional habit — it doesn't replace it.
5. Side-by-side comparison
Select multiple rows in the results table (aim for under ~10), then open the PDF Viewer tab. Ask one question — it goes to all selected devices in parallel, each with citations. This is the fastest way to compare and contrast devices: training data, PCCP scope, how they handled adding new scanners, and so on.
What does the side-by-side PDF viewer mode do?
Select multiple devices, open the PDF viewer tab, and ask one question (e.g., "Describe the training data"). It queries all selected devices simultaneously with citations, so you can compare and contrast quickly.
6. Collections
With rows selected, go to the Collections tab and create a labeled collection (e.g., "Cobb Angle Project"). Reload that selection any time — before a client call, pull up the collection and ask questions across all of its devices at once.
How do you save a set of selected devices for later use?
Select the rows, go to the Collections tab, and create a labeled collection (e.g., "Cobb Angle Project"). You can reload the selection anytime and carry it into the PDF viewer and other tabs that support selections.
7. Product codes and the regulations tree
Click a product code in the results to jump to it in the regulations tree — identification text, sibling product codes, and devices you can open in a PDF viewer on the right. Click a regulation number to see its identification, special controls, and related product codes. You can also search by product code or regulation number at the top of the tree. Always read the special controls if any exist for your device — it broadens your search and sharpens pre-kickoff research.
What can you do from the regulations tree view?
Browse product codes and regulation numbers, read the identification text and special controls, browse sibling product codes, open device PDFs on the right, and search by product code or regulation number at the top of the tree.
8. Chart view
Click Show Chart and segment by regulation number (or product code) to see which regulations dominate your result set. Clicking a regulation takes you into the regulations tree. Great for spotting that most matches are, say, hardware laparoscopic devices — a cue to go back and filter.
How do you see which regulations dominate a search result set?
Click "Show Chart" and segment by Regulation Number. Clicking a regulation takes you to the regulations tree.
9. The predicate graph
Open the Predicates tab for a family-tree view of predicate relationships. Click a node to trace its parents and children; selections from search carry over pre-selected. Commonly predicated devices are worth reading — a lot of people predicated them for a reason. The visual lineage is also handy on client calls, e.g. to show how a predicate family evolved and justify why your predicate still holds.
In the predicate graph, why are commonly predicated devices worth reading?
A lot of people predicated them for a reason. Clicking a node traces parents and children, and selections from search carry over pre-selected.
10. Embeddings: the galaxy map
The Embeddings tab plots every matching document in a 2-D "galaxy map" where semantically similar devices cluster together. Hover or click clusters to explore, and let AI label the clusters for you. Embeddings beat product codes for grouping: two devices can carry different product codes (LLZ vs. QIH) yet do the same thing — the embedding captures the meaning of the intended use and device story. This is also exactly how retrieval-augmented generation (RAG) works under the hood, and it makes a great visual on client calls.
Try it yourself
Head to the search page and work through a few of these AI/ML fuzzy searches to build intuition: perivascular fat on CT · aortic valve calcification opportunistic screening on noncontrast CT · breast cancer prediction on digital pathology slides · autism detection · gestational age prediction · a hearing aid that can also detect a pulse · foundation model based analysis of ECG · large language models · penetration test. Watch how the relevance scores, intended use, and AI Performance tables tell you when results stop being meaningful.