Why Body-Safe Materials Matter More Than You Realize

There are no federal regulations governing what intimate products can be made from. Here’s what that means for you — and what to do about it.

You check the ingredients on your moisturizer. You read the label on your supplements. You probably have a general sense of what you’re willing to put on your face and what you’re not.

Most people apply that same standard everywhere — except the one place it arguably matters most. Intimate wellness products come into contact with some of the most absorbent, most sensitive tissue in the body. And unlike skincare, food, or pharmaceuticals, there is no federal regulatory framework governing what they can be made from.

That’s not a conspiracy theory. It’s a gap in consumer protection — and one that most people don’t find out about until after they’ve already been buying products for years. This post is about closing that gap.

The Regulatory Gap Nobody Talks About

In the United States, the FDA regulates food, drugs, medical devices, and cosmetics — each with varying degrees of scrutiny and premarket requirements. Intimate wellness products fall into none of these categories cleanly. Most are classified as “novelty” consumer products, which means they are subject to general consumer product safety standards but not to the material-specific testing or disclosure requirements that apply to regulated categories.

The FDA does not require premarket safety testing or ingredient disclosure for consumer products in this category. Manufacturers are not required to prove their materials are safe before selling them. And because labeling requirements are minimal, a product can be sold as “body-safe” or “premium” with no obligation to substantiate that claim.

Source: FDA. “Are all personal care products regulated as cosmetics?” U.S. Food & Drug Administration. FDA.gov.

The practical consequence: the responsibility for understanding what a product is made from sits entirely with the consumer. Which means it helps to actually understand materials.

Why the Tissue Involved Changes Everything

The vaginal mucosa is not like skin. It is significantly more permeable — meaning it absorbs compounds more readily and more completely than skin at other body sites, and chemicals absorbed through it bypass first-pass liver metabolism and enter the bloodstream directly.

Research published in a PMC review on menstrual product chemicals confirmed that the vulvar and vaginal mucosa have higher permeability than skin at other body sites — and that chemicals absorbed vaginally can bypass first-pass metabolism and enter systemic circulation. The same review cited a study in which vaginal application of a steroid medication produced blood serum levels measurably higher than oral dosing of the same compound.

Source: Shearston et al. (2023). “Menstrual Products as a Source of Environmental Chemical Exposure: A Review from the Epidemiologic Perspective.” PMC9876534.

A 2014 paper in Environmental Health Perspectives made the point directly: the vaginal epithelium is well-vascularized and permeable, and absorption of compounds applied there can be substantial. This is why vaginal drug delivery is a recognized pharmaceutical route — the tissue absorbs efficiently and reliably.

Source: Zota & Shamasunder (2014). “A Question for Women’s Health: Chemicals in Feminine Hygiene Products and Personal Lubricants.” Environmental Health Perspectives, 122(3). View study.

The implication for intimate products is straightforward: materials that come into contact with this tissue aren’t just sitting on the surface. They interact with it — which is exactly why what those materials are made of matters.

The Problem With Porous and Unregulated Materials

The most common concern in the intimate wellness category is phthalates — a class of chemical plasticizers used to make PVC and other synthetic materials soft and flexible. They are widely used in the jelly rubber, “soft rubber,” and PVC products that make up a significant portion of the lower price-point intimate product market.

Phthalates are classified as endocrine-disrupting chemicals, meaning they interfere with the body’s hormonal signaling. A 2021 review published in PMC’s Healthcare journal summarized the documented impacts: chronic exposure is associated with hormonal disruption, impaired reproductive function, and adverse outcomes in pregnancy. The review noted that phthalates leach readily from products that come into direct contact with the body.

Source: Wang & Qian (2021). “Phthalates and Their Impacts on Human Health.” Healthcare, 9(5), 603. PMC8157593.

A more recent PMC review specifically examined the link between phthalate exposure and female reproductive health, finding documented associations with impaired ovarian function, disrupted uterine function, and interference with endocrine signaling in the hypothalamic-pituitary-ovarian axis — the hormonal system that governs the menstrual cycle.

Source: “Phthalates Disrupt Female Reproductive Health: A Call for Enhanced Investigation into Mixtures.” PMC (2025). PMC11969576.

Beyond phthalates, porous materials — regardless of their chemical composition — present a separate problem: they cannot be fully sanitized. Microscopic surface openings trap bacteria, body fluids, and cleaning agents even after washing. This is the reason porous products cannot be shared, cannot be sterilized, and have a shorter safe lifespan than non-porous alternatives. We cover the practical cleaning implications in our product care guide.

What Body-Safe Actually Means

The term “body-safe” gets used loosely in marketing, which has eroded its usefulness as a signal. Here’s what it should mean, specifically.

A body-safe material is non-porous, non-toxic, non-reactive with body tissue, and free of chemicals associated with endocrine disruption or tissue irritation. It can be thoroughly cleaned, and where applicable, sterilized. It does not degrade into the body or leach compounds under normal use conditions.

The materials that meet this standard are a short list:

• Medical-grade silicone — the most common body-safe material in quality intimate products. Non-porous, hypoallergenic, durable, and chemically stable. Look for “100% medical-grade silicone” or “platinum-cure silicone.” Important: use water-based lubricant with silicone products — silicone-based lubricants degrade the material surface.
• Borosilicate glass — non-porous, inert, easy to sterilize, and temperature-responsive. The same material used in laboratory glassware and high-quality cookware. Inspect before each use for chips or cracks.
• Stainless steel — non-porous, non-reactive, completely sterilizable, and virtually indestructible. The heaviest material option, which some people prefer for the sensation of firm pressure.
• ABS hard plastic — non-porous when medical-grade. Firm, smooth, and easy to clean. Cannot be boiled or subjected to high heat. Often used in the external housing of motorized products.

What to Avoid — and How to Spot It

Materials to avoid include jelly rubber, PVC, TPR (thermoplastic rubber), TPE (thermoplastic elastomer), and any product that doesn’t clearly disclose its material. These are porous, often contain phthalates or other plasticizers, and cannot be fully cleaned.

The challenge is that labeling in this category is inconsistent and sometimes misleading. Here’s what to watch for:

• Vague claims like “body-safe” or “premium” without material disclosure — these are marketing terms with no regulatory definition. A body-safe claim means nothing without knowing what the product is made of.
• “Soft silicone” or “silicone blend” — pure silicone is firm. If a product is described as very soft or as a blend, it likely contains TPE, TPR, or other porous materials mixed with silicone.
• No material listed at all — the absence of a materials disclosure is itself a red flag. Reputable manufacturers always disclose what they’re selling.
• Unusually low price for silicone products — 100% medical-grade silicone has a cost floor. Products priced significantly below comparable offerings from established brands are often made from cheaper substitute materials regardless of what the label says.

The Skincare Analogy — and Why It Actually Holds

The comparison between intimate product materials and skincare ingredients isn’t just a marketing frame. It’s structurally accurate.

Most people now understand that skincare ingredients matter — that certain preservatives, fragrances, and synthetic compounds can irritate sensitive skin or cause longer-term concerns. That understanding drove an entire shift in the cosmetics industry toward cleaner formulations and more transparent labeling. The intimate wellness category is in an earlier stage of the same evolution.

The difference is that the tissue involved in intimate product use is more permeable than facial skin, the regulatory framework is weaker, and the cultural shame around the category has historically suppressed the kind of consumer scrutiny that drove the skincare shift. The information was always available. It just wasn’t accessible in a format that felt like it was for you.

It is. And the standard you apply to what goes on your face is a reasonable minimum for what comes into contact with tissue that’s significantly more absorbent.

The Bottom Line

Body-safe materials aren’t a premium feature or a niche preference. They’re the baseline — and the research on why is clear. Vaginal tissue is highly permeable. Phthalates are documented endocrine disruptors. There is no federal requirement that intimate products be made from safe materials. Which means the only thing standing between you and that gap is knowing what to look for.

Now you do.

Every product at The Dark Olive is made from body-safe, non-porous materials — and every listing discloses exactly what that material is. That’s not a selling point. It’s a minimum standard.

→ Browse our full collection — material disclosed on every product page, no guesswork required.

References & Further Reading

1. FDA. “Are all personal care products regulated as cosmetics?” U.S. Food & Drug Administration. FDA.gov
2. Shearston et al. (2023). “Menstrual Products as a Source of Environmental Chemical Exposure.” PMC. PMC9876534
3. Zota & Shamasunder (2014). “A Question for Women’s Health: Chemicals in Feminine Hygiene Products and Personal Lubricants.” Environmental Health Perspectives, 122(3). View study
4. Wang & Qian (2021). “Phthalates and Their Impacts on Human Health.” Healthcare, 9(5), 603. PMC8157593
5. “Phthalates Disrupt Female Reproductive Health: A Call for Enhanced Investigation into Mixtures.” PMC (2025). PMC11969576