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Cosmetic ingredient dictionary

Isopropyl Isostearate in cosmetics: what it is and what it does

Isopropyl Isostearate is a cosmetic ingredient that softens and smooths the skin. Open Beauty Facts finds it in 50 products, most often sunscreen.

By Bravoora teamUpdated Sources checked 2 sourcesHow we check

What does Isopropyl Isostearate do in a product?

In a cosmetic product, Isopropyl Isostearate softens and smooths the skin, keeps the skin in good condition, and holds a powder or a pressed product together. The EU’s CosIng database lists these jobs for it: emollient, skin conditioning and binding.

emollientskin conditioningbinding

What other names and numbers does Isopropyl Isostearate have?

CAS number
31478-84-9, 68171-33-5
EC number
250-651-1, 269-023-3
CosIng reference
34693

Which products contain Isopropyl Isostearate?

Open Beauty Facts finds Isopropyl Isostearate in the ingredient lists of 50 of the 22,021 products it has a list for, most often sunscreen, face care and facial creams.

  • Sunscreen3
  • Face care2
  • Facial creams2

Products with it, by country of sale: Australia 14 · France 8 · United States 7 · Norway 5.

Counted on 13 October 2026 from Open Beauty Facts, which volunteers fill from real packs: it shows where Isopropyl Isostearate turns up, not how much of the market it is.

On these listsEmollients

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’.

  1. European Commission: CosIng cosmetic ingredient database (functions, description, EU annex entry)
  2. 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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