Phthalates in Everyday Products: What You Need to Know
Phthalates are plasticizers — chemicals added to PVC and other materials to make them flexible rather than brittle. They’re also used as solvents and fixatives in fragrance formulations. The challenge with phthalates is that they’re both ubiquitous and largely invisible on product labels.
What They Are
The phthalate family includes dozens of compounds. The ones with the most regulatory attention and research behind them:
DEHP (di(2-ethylhexyl) phthalate): The most studied phthalate. Restricted in children’s toys in the US (Consumer Product Safety Improvement Act, 2008), restricted in food contact materials in the EU. Still used in some medical devices where it’s considered acceptable for lack of alternatives, which is a source of ongoing concern in healthcare settings.
DBP (dibutyl phthalate): Used historically in nail polish as a plasticizer and in some adhesives. Restricted in the EU in cosmetics. Still found in some nail products sold in the US.
DEP (diethyl phthalate): The phthalate most commonly used in fragrance formulations as a solvent and fixative. Not currently restricted in the US. When a product lists “fragrance” without further disclosure, DEP is often present.
BBP (benzyl butyl phthalate): Used in flooring (vinyl floor tiles), adhesives, and some food packaging. Restricted in the EU in children’s products.
DINP and DIDP: Long-chain phthalates used as DEHP replacements in many applications. Under EU restriction following reproductive toxicity concerns.
DCHP (dicyclohexyl phthalate): Found in some food contact plastics. Detected in a 2022 FDA study that analyzed phthalate contamination in the US food supply, which found phthalates present in the majority of food samples tested, with macaroni and cheese powder having notably high levels.
Where They’re Found
Fragrance: This is the most significant exposure route for most people outside of occupational settings. DEP and other phthalates are used extensively in synthetic fragrance as carriers and fixatives. Because fragrance formulas are protected as trade secrets, they don’t appear on ingredient lists. Products containing “fragrance” or “parfum” may contain phthalates without any disclosure required.
Vinyl flooring: PVC flooring requires plasticizers. DEHP is still used in some products; DINP is the more common replacement. Phthalates off-gas from vinyl flooring and are measurable in household dust. Children who spend more time on the floor have measurably higher phthalate exposures.
Nail polish: DBP has been restricted in EU cosmetics and voluntarily removed by many US brands, but verification matters. Some brands market “3-free,” “5-free,” or “10-free” formulations that specify which phthalates and other compounds are excluded.
PVC products generally: Shower curtains, raincoats, cable sheathing, garden hoses, and some food packaging are made from PVC that may be plasticized with phthalates. The off-gassing from a new PVC shower curtain is a legitimate and measurable exposure; the “new shower curtain smell” is largely VOCs from PVC processing, which can include phthalates.
Medical devices: IV bags, blood bags, and tubing used in hospitals are often made from DEHP-plasticized PVC. Patients receiving long-term IV therapy, dialysis, or blood transfusions can have significant DEHP exposure from this source. The FDA has asked manufacturers to develop alternatives for vulnerable populations, particularly premature infants and pregnant women.
Food: Phthalates migrate from food packaging and processing equipment into food. The FDA’s 2022 study of food phthalate contamination found DEHP and other phthalates present in a wide range of foods including dairy, meat, and grains. This is largely a background exposure that’s difficult to avoid entirely, but reducing packaged and processed food consumption measurably lowers dietary phthalate exposure.
Why It Matters
Phthalates are endocrine-disrupting chemicals. The most robust evidence relates to their anti-androgenic effects — they interfere with testosterone production and signaling. In animal studies, fetal phthalate exposure causes testicular maldevelopment and feminization of male reproductive anatomy. Human epidemiological studies link prenatal phthalate exposure to shorter anogenital distance in male infants (a marker of androgen activity during fetal development), reduced sperm quality in adult men, and changes in timing of puberty in girls.
The National Toxicology Program has concluded that DEHP poses a concern for human reproductive development at current exposure levels. The CDC’s biomonitoring data shows phthalate metabolites in the urine of nearly all Americans tested, indicating widespread population-level exposure.
Thyroid function is another area of research interest. Several studies have found associations between urinary phthalate levels and altered thyroid hormone levels in adults and children.
As with parabens, the regulatory and precautionary positions diverge on cumulative exposure. Individual phthalates are evaluated one at a time; people are exposed to multiple phthalates simultaneously from multiple sources.
Reducing Exposure Practically
Fragrance: Choosing fragrance-free or genuinely transparent fragrance formulations is the single highest-impact personal care change. Brands that disclose full fragrance ingredient lists (Beautycounter, Phlur, and a growing number of others) or that use only certified fragrance ingredients eliminate the phthalate-in-fragrance concern.
Flooring: If replacing flooring, choose hardwood, tile, cork, or phthalate-free vinyl alternatives. For existing vinyl flooring, regular cleaning of floor dust reduces exposure, particularly for children.
Nail polish: Look for “5-free” or higher formulations that explicitly exclude DBP. Brands like Zoya (10-free), Kure Bazaar, and ORLY (Freedom formula) are among those with documented exclusions.
Shower curtains: A fabric shower curtain (cotton, linen, or PEVA as a liner alternative) avoids PVC phthalates. PEVA is not without its own questions but is better studied than DINP-plasticized PVC.
Food packaging: Reducing intake of highly processed foods in flexible plastic packaging and fast food measurably reduces dietary phthalate exposure, based on controlled feeding studies. Eating fresh food stored in glass or stainless steel is the most practical lever here.
Dust: Phthalates accumulate in household dust, particularly near vinyl flooring and older electronics. HEPA vacuuming and regular damp mopping reduces dust-bound phthalate levels in the home.
Recommended Products
Browse phthalate-free products at Phthalate-Free Products
Fragrance-free personal care: Fragrance-Free Products
Summary
Phthalates are plasticizers and fragrance solvents found in vinyl products, personal care fragrance, nail polish, food packaging, and processed food. They’re anti-androgenic endocrine disruptors with documented effects on male reproductive development in animal models and associations with reproductive markers in human studies. The primary exposure routes for most people are fragrance in personal care products and diet. Choosing fragrance-free or fully disclosed fragrance formulations, reducing processed food in flexible plastic packaging, and replacing PVC products where practical are the most effective reduction strategies.