Are Phthalates Harmful in Skincare and Cosmetics?
Last updated: 2 September 2026
Phthalates show up on almost every "ingredients to avoid" list, but the family covers more than a dozen chemicals with different regulatory histories and different levels of evidence behind them. Lumping them together makes for a scarier headline and a less useful answer. Here's what phthalates actually are, which ones are restricted and why, what the hormone-disruption evidence really shows, and how to read a label for them.
What phthalates are, and why they end up in cosmetics
Phthalates are a family of industrial chemicals, most familiar as plasticizers that make PVC flexible. In cosmetics, their job is usually different: the FDA notes that diethyl phthalate (DEP) is the only phthalate still commonly used in cosmetics, working as a solvent and fixative that helps fragrance oils dissolve evenly and last on skin. Older formulas sometimes used dibutyl phthalate (DBP) as a film-former in nail polish, a use now largely phased out. Because DEP's job is to carry fragrance, it travels inside a product's scent — which matters for how it's labeled, more on that below.
Which phthalates are actually restricted, and where
Regulators don't treat all phthalates the same way. Under Annex II of the EU's Cosmetics Regulation (EC) No 1223/2009, dibutyl phthalate (DBP), diethylhexyl phthalate (DEHP) and benzyl butyl phthalate (BBP) are banned from cosmetic products outright. Separately, under the EU's wider REACH chemicals framework, the European Commission restricts DEHP, BBP, DBP and diisobutyl phthalate (DIBP) in plasticized articles above 0.1% by weight, citing an "inadequately controlled risk to human health" from cumulative exposure to those four.
California followed: its Toxic-Free Cosmetics Act, in effect since January 1, 2025, bans DBP and DEHP from cosmetics sold in the state — the first US state-wide ban of its kind, and it matches the EU list.
DEP is not on any of these lists. The FDA states it "does not have safety concerns with the use of DEP as currently used in cosmetics and fragrances," based on the Cosmetic Ingredient Review panel's finding that cosmetic exposure is low relative to levels shown to cause effects in animals. Health Canada reached a similar conclusion, finding "no concern for human health at levels normally found in the Canadian environment" — a meaningfully different verdict than DBP and DEHP received, and worth knowing before assuming every phthalate carries the same risk.
What does the hormone-disruption evidence actually show?
The concern is real, but specific. NIEHS defines endocrine disruptors as chemicals that can mimic or interfere with the body's hormone signaling, and its fact sheet notes some phthalate exposures have been associated with behaviors linked to attention and impulse control in children — an association the agency is careful to call hard to untangle, since people face many simultaneous chemical exposures and effects can take years to appear. The phthalates with the more consistent evidence behind reproductive and developmental effects are DBP and DEHP, which is why those two — not the whole chemical family — are the ones EU and California regulators restricted.
DEP's picture looks different. Biomonitoring in the EPA's Report on the Environment shows average US urinary levels of DEP's metabolite falling from about 120 micrograms per gram of creatinine in 2003–2004 to about 35 in 2015–2016, tracking with reformulation over that period. Health Canada's data shows a similar roughly 70% drop between 2007 and 2019.
It's worth being honest about where exposure actually comes from, too. For DEP, personal care products are one of the main exposure routes, so fragrance-free choices genuinely reduce DEP intake. But for DEHP, food and food packaging are typically the dominant source — a plastic-wrapped sandwich can contribute more than a skincare routine. Using one phthalate-containing cosmetic isn't an acute risk at the doses involved; the open research question is cumulative, low-dose exposure across many products and food sources over a lifetime, and it remains an active area of study, not a settled one.
How to read a label for phthalates
Ingredient lists only tell you part of the story, but they're still worth checking carefully:
- Look for the compounds by name. DEP (diethyl phthalate), DBP (dibutyl phthalate) and DEHP (diethylhexyl phthalate, sometimes listed as bis(2-ethylhexyl) phthalate) are the three to scan for. In California and the EU, DBP and DEHP shouldn't legally appear in cosmetics at all now.
- Watch "fragrance" or "parfum." This is the real gap. Fragrance formulas are protected as trade secrets in most jurisdictions, so a brand can legally list one word — "fragrance" — that covers dozens of undisclosed components, DEP among them. The FDA itself acknowledges consumers "may not be able to determine from the ingredient declaration on the label if phthalates are present" for exactly this reason.
- Know what a "phthalate-free" claim can and can't prove. A brand can accurately say its formula contains no added phthalates based on what its suppliers disclose. What it usually can't independently verify — and what you can't verify from the label alone — is the exact makeup of a third-party fragrance oil supplied under confidential formula, short of full disclosure or independent testing. The more reliable route around that uncertainty isn't a claim on a bottle; it's a formula with no synthetic fragrance for a phthalate to hide inside.
- Short, transparent ingredient lists are easier to audit. Anhydrous, single-purpose formulas with no proprietary fragrance blend are simply easier to verify — fewer components, nothing hiding behind a generic label term.
Where fragrance-free formulation fits in
This is a formulation fact, not a health claim: since DEP's main job in cosmetics is carrying synthetic fragrance, a product with no synthetic fragrance has no use for DEP and no "fragrance" catch-all to hide it behind. CallNature's SD7 Lipid Serum is built that way — an anhydrous, botanical lipid facial serum with no water, no synthetic fragrance and no added phthalates, nothing obscured by a trade-secret scent blend. That doesn't mean phthalate-containing cosmetics are dangerous at normal use levels; regulators mostly agree they aren't, DEP included. It means that if you'd rather reduce fragrance-related exposure across your routine, a fragrance-free, transparently listed formula is the most direct way to do it.
Frequently Asked Questions
Are phthalates banned in skincare and cosmetics?
Two are: DBP and DEHP are banned from cosmetics in the EU under Annex II of the Cosmetics Regulation, and in California under its Toxic-Free Cosmetics Act, effective January 2025. DEP, the phthalate most commonly used in cosmetics today, is not banned; the FDA and Health Canada both currently assess it as low-risk at typical cosmetic exposure levels.
What's the difference between DEP and DBP or DEHP?
They're chemically related but not interchangeable in regulatory or safety status. DBP and DEHP have the more consistent evidence of reproductive and developmental effects and are the ones regulators restricted. DEP, used mainly to stabilize fragrance, has been assessed by the FDA and Health Canada as posing no meaningful health concern at typical cosmetic exposure levels.
Does "fragrance-free" guarantee a product is phthalate-free?
It significantly reduces the likelihood, since DEP's main route into cosmetics is as a fragrance carrier, but it isn't an absolute guarantee for every phthalate. The more reliable approach is a fragrance-free or fully disclosed formula combined with a "no added phthalates" statement from the brand.
Where does most phthalate exposure actually come from?
It depends on the phthalate. For DEP, personal care products are the primary source, so cosmetic choices make a real difference. For DEHP, food and food packaging are typically the larger contributor, meaning diet matters more than skincare for that compound.
Should I be more cautious about phthalates during pregnancy?
Because phthalates are studied for effects on hormone-sensitive developmental windows, some people choose to reduce avoidable exposure during pregnancy as a precaution, particularly to DBP and DEHP, which carry the stronger evidence base. This is a personal risk-reduction choice rather than a documented requirement, and anyone with specific concerns should discuss them with their healthcare provider.
This article is for general information only and is not medical advice. It does not diagnose, treat, cure or prevent any disease. If you have specific health concerns about phthalate exposure, speak with a qualified healthcare provider.