Cosmetic ingredient dictionary
Diethyl Phthalate in cosmetics: what it is and what it does
Diethyl Phthalate is a cosmetic ingredient that makes hair easier to comb, softer or shinier. Open Beauty Facts finds it in 6 products, most often perfumes.
By Bravoora teamUpdated Sources checked 2 sourcesHow we check
What does Diethyl Phthalate do in a product?
In a cosmetic product, Diethyl Phthalate makes hair easier to comb, softer or shinier, leaves a thin film on skin, hair or nails and dissolves other ingredients. The EU’s CosIng database lists these jobs for it: hair conditioning, film forming, solvent, masking, denaturant and plasticiser.
What other names and numbers does Diethyl Phthalate have?
- CAS number
- 84-66-2
- EC number
- 201-550-6
- CosIng reference
- 33282
Which products contain Diethyl Phthalate?
Open Beauty Facts finds Diethyl Phthalate in the ingredient lists of 6 of the 22,021 products it has a list for, most often perfumes and deodorants.
Products with it, by country of sale: India 3 · Sweden 1 · Saudi Arabia 1 · Türkiye 1.
Counted on 13 October 2026 from Open Beauty Facts, which volunteers fill from real packs: it shows where Diethyl Phthalate turns up, not how much of the market it is.
Bravoora reads this ingredient for everyone you shop for: an allergy or intolerance, a vegan or vegetarian diet, a calorie or protein goal, and the labels on supplements and skincare too. Build a profile · For dermatologists, dietitians and doctors
Sources
The job, the description and the EU annex entry are CosIng’s; the fragrance allergens are the EU Annex III names Bravoora’s label checker reads; the product counts are Open Beauty Facts’.
- European Commission: CosIng cosmetic ingredient database (functions, description, EU annex entry)
- Open Beauty Facts: product database, 77,506 products, read 13 October 2026, ODbL
Contains information from Open Beauty Facts, which is made available here under the Open Database License (ODbL). Read the licence · Download this dictionary’s data · How we check
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