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Cosmetic ingredient dictionary

PEG-8/Smdi Copolymer in cosmetics: what it is and what it does

PEG-8/Smdi Copolymer is a cosmetic ingredient that leaves a thin film on skin, hair or nails. Open Beauty Facts finds it in 8 products, most often shampoos.

By Bravoora teamUpdated Sources checked 2 sourcesHow we check

What does PEG-8/Smdi Copolymer do in a product?

In a cosmetic product, PEG-8/Smdi Copolymer leaves a thin film on skin, hair or nails. The EU’s CosIng database lists this job for it: film forming.

film forming

What other names and numbers does PEG-8/Smdi Copolymer have?

CAS number
39444-87-6
CosIng reference
77477

Which products contain PEG-8/Smdi Copolymer?

Open Beauty Facts finds PEG-8/Smdi Copolymer in the ingredient lists of 8 of the 22,021 products it has a list for, most often shampoos and shampoo for dry hair.

  • Shampoos2
  • Shampoo for dry hair1

Products with it, by country of sale: France 3 · Belgium 1 · Netherlands 1 · Norway 1.

Counted on 13 October 2026 from Open Beauty Facts, which volunteers fill from real packs: it shows where PEG-8/Smdi Copolymer 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’.

  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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