Ingredient file · Banned

Is lily aldehyde (butylphenyl methylpropional) banned in cosmetics?

Q: What does EWG Skin Deep say about lily aldehyde (butylphenyl methylpropional)?

EWG Skin Deep scores lily aldehyde (butylphenyl methylpropional) 8 out of 10 with good data, and lists use restrictions as high. Read 23 October 2026.

Yes, in the EU: Annex II lists lily aldehyde (butylphenyl methylpropional) as a prohibited substance (entry 1666). California, the EU and FDA's named list, read 23 October 2026, with EWG Skin Deep's score.

SlipperSkin finding

Read on 23 October 2026, lily aldehyde (butylphenyl methylpropional) is prohibited in the EU (Annex II) and will be banned in California from 2027; EWG Skin Deep scores it 8 out of 10.

From the California statute, the EU Cosmetics Regulation as consolidated on 1 May 2026, FDA’s page and EWG’s ingredient page, read 23 October 2026. We report what each says; we do not rate the ingredient.

Is lily aldehyde (butylphenyl methylpropional) banned in cosmetics?

Yes, in the EU: Annex II lists lily aldehyde (butylphenyl methylpropional) as a prohibited substance (entry 1666). California will ban it from 1 January 2027 (list (b)(1)). FDA's named list does not include it. EWG Skin Deep scores it 8 out of 10 (data: good).

Lily aldehyde (butylphenyl methylpropional): where it standsread 23 October 2026

Filled red marks a ban, blue a restriction, pale an ingredient that list does not name. FDA's page names 11 entries and none is lily aldehyde (butylphenyl methylpropional). The EWG row marks its score; a bar shows a range.

What does the EU list say about lily aldehyde (butylphenyl methylpropional)?

Annex II is the EU's list of prohibited substances. The entries for lily aldehyde (butylphenyl methylpropional) are in the table below, as printed in the regulation consolidated on 1 May 2026.

Lily aldehyde (butylphenyl methylpropional) in the EU Cosmetics Regulation, found by CAS number 80-54-6
Where	Annex	Cap, threshold and product type	Condition
Annex II, entry 1666 as printed: 2-(4-tert-butylbenzyl) propionaldehyde	Prohibited substances	prohibited all cosmetic products	No condition printed in the entry.

Is lily aldehyde (butylphenyl methylpropional) on California's banned list?

It will be. California's Health and Safety Code section 108980 bans lily aldehyde (butylphenyl methylpropional) from 1 January 2027 (list (b)(1)), when intentionally added.

What does EWG Skin Deep say about lily aldehyde (butylphenyl methylpropional)?

EWG’s page gives lily aldehyde (butylphenyl methylpropional) a hazard score of 8 out of 10 with good data. Its concerns line reads, in part: Use restrictions (high), Endocrine disruption (low), Persistence and bioaccumulation (moderate), and Non-reproductive organ system toxicity (low_moderate). The use-restrictions concern is high. The score is a hazard score on EWG's own scale; it is not a regulatory status.

Where is this read from?

More ingredient files: Isobutylparaben · Hydroquinone · Dibutyl phthalate · all 66 ingredient files

Method: California's section 108980 and the EU's annexes were read in Chrome on 23 October 2026; EU lookups are by CAS number (80-54-6) across Annexes II, III, V and VI; EWG's page was kept only if its name matched exactly; the PubChem link is the compound the CAS number resolves to. Statutes change and EWG revises pages, nothing here is a safety verdict, and an ingredient that is not on a list is not endorsed.