The Fragrance Loophole: Why Ingredient Labels Don't List Phthalates

Why doesn't your lotion, shampoo, or perfume list what's actually in its scent? Because US law lets a manufacturer print the single word "fragrance" or "parfum" instead of naming the individual chemicals behind it, and that mixture can legally include phthalates that get more scrutiny elsewhere in the world.

The rule that creates the loophole

The Fair Packaging and Labeling Act, the law that governs cosmetic ingredient lists in the US, treats a fragrance or flavor formula as a trade secret. A brand can list "fragrance" as one line item and never disclose the individual compounds inside it, even though that single word can represent dozens of ingredients. The FDA has confirmed this directly: fragrance formulas are not required to be broken out on the label.

This is different from every other ingredient on the list. If a lotion contains glycerin, the label says glycerin. If it contains a fragrance blend with a dozen components, the label says fragrance, full stop.

Where phthalates come in

Phthalates are a family of chemicals used in fragrance formulas as fixatives, compounds that help scent last longer on skin or fabric. Diethyl phthalate (DEP) is the one most commonly used in personal care fragrance.

Because "fragrance" is exempt from full ingredient disclosure, a product can contain a phthalate fixative and the label gives you no way to know. You would not see "diethyl phthalate" anywhere on the bottle. You would see "fragrance."

The European Union takes a narrower approach to what a fragrance label has to hide. EU cosmetics regulation requires specific fragrance allergens to be named individually on the label once they're present above a set concentration, and it restricts several phthalates, including DEHP and DBP, from cosmetics entirely as part of its broader chemical safety rules. The US has no equivalent disclosure requirement and no equivalent restriction on phthalates specifically in cosmetics. The practice that would require a specific allergen or restricted substance to be named on a European label can still hide behind one word here.

What this does and does not mean

This is a disclosure gap, not a verdict on every product that lists "fragrance." Plenty of fragrance formulas contain no phthalates at all, and reformulation away from phthalate fixatives has become common industry practice over the past decade. The problem is that you, the person reading the label, have no way to check either way. "Fragrance" tells you nothing about what's actually inside it.

This is also a different issue from the fragrance-free versus unscented question (see our breakdown of that distinction), which is about whether a masking scent is present at all. This loophole is about what's allowed to hide inside the word "fragrance" when a scent is present, whether it's a signature perfume note or the masking fragrance in an "unscented" product.

What you can actually do about it

A few label habits help you work around a gap the label itself won't close:

• Look for "phthalate-free" or "DEP-free" claims. Brands that reformulate to remove phthalate fixatives often say so directly, since it's not required, a stated claim is a real signal.
• Check for full fragrance transparency. A small number of brands voluntarily publish their complete fragrance ingredient list, going beyond what the law requires.
• Treat "unscented" and "fragrance-free" differently. An unscented product can still contain a masking fragrance, which brings the same disclosure gap with it.
• Favor products with third-party certifications that screen fragrance ingredients, since some certification programs require fragrance disclosure to the certifying body even when the public label doesn't show it.

None of this closes the loophole. It just gives you a way to shop around it until the label itself has to tell you more. Our beauty category picks list the actual ingredients we could verify for each product, fragrance included, so you can see what a brand does and does not disclose before you decide to buy.