Is Diethyl phthalate Banned? EU vs US Status, Risks & Where It Hides
TL;DR: Diethyl phthalate is banned in the EU but allowed in the US (phthalates).
INCI name Diethyl Phthalate. CAS 84-66-2.
Other names: DEP
Is Diethyl phthalate banned in the EU?
| EU status | Banned |
|---|---|
| US status | Allowed |
| Risk level | high |
| Where it shows up | nail polish, perfume, hairspray, lotion |
| CAS number | 84-66-2 |
What is Diethyl phthalate?
Diethyl phthalate is a phthalate plasticizer historically used in fragrances, nail polish and hair products.
Why is Diethyl phthalate used in personal-care products?
Phthalates make plastics flexible, help fragrance last longer and reduce nail-polish chipping.
Is Diethyl phthalate dangerous? Documented risks
Diethyl phthalate is a reproductive and developmental toxicant and endocrine disruptor. The EU bans CMR phthalates in cosmetics; the US has no federal cosmetic ban.
Products that may contain Diethyl phthalate
How to avoid Diethyl phthalate: safer alternatives
Choose phthalate-free and 'fragrance-free' products. BannedPantry flags phthalates and undisclosed 'fragrance' on the label.
Frequently asked questions about Diethyl phthalate
Is Diethyl phthalate banned in the EU?
Diethyl phthalate is banned under the EU Cosmetics Regulation (1223/2009), but it is allowed in US personal-care products.
Is Diethyl phthalate in US cosmetics?
Yes — Diethyl phthalate can still appear in US-sold cosmetics and personal-care products because US rules are far less restrictive than the EU's.
What products contain Diethyl phthalate?
Read the INCI ingredient list on the back of the package. Scan the barcode with BannedPantry to flag Diethyl phthalate automatically.
Are there safer alternatives to Diethyl phthalate?
Yes. Look for EU-compliant or 'free-from' formulations; BannedPantry suggests safer swaps when it detects Diethyl phthalate.
Scan any product's barcode and instantly see if it contains Diethyl phthalate or other ingredients banned overseas.
Scan a product free →Related phthalates
Avoiding banned beauty ingredients? Check your food, too.
Sources
- EU Cosmetics Regulation Annex II (prohibited substances) — EU Cosmetics Regulation 1223/2009
- EU endocrine disruptor list I — EU ED Lists
- Chemicals in cosmetics — CHEM Trust
Our scores are never influenced by brands. Last updated 6/11/2026.