Polyisobutene

What this ingredient generally does

A thickening and binding agent that also forms a film. It adjusts how thick the product is, holds the mix together, and leaves a thin coating on the skin as it dries.

Reviewed before publication. This note describes function in a formulation — nothing else.

Published formulations that list this ingredient

These are the formulations currently published in the SPF Scout catalog whose stored ingredient declaration includes this ingredient. It is not a list of every product on the market, and the order carries no meaning.

• Aveeno Aveeno Favorites

  U.S. formulation

• Aveeno Aveeno Positively Radiant Daily Moisturizer Sunscreen Broad Spectrum SPF 15

  SPF 15 as labeled · U.S. formulation

• Aveeno Aveeno Positively Radiant Daily Moisturizer Sunscreen Broad Spectrum SPF 30

  SPF 30 as labeled · U.S. formulation

• Cdpharmtec Co.,ltd QUEENS ROSE WHOLE IN ONE SUNBLOCK

  U.S. formulation

• EltaMD EltaMD UV Clear SPF46

  SPF 46 as labeled · U.S. formulation

• EltaMD EltaMD UV Clear Tinted SPF46

  SPF 46 as labeled · U.S. formulation

• EltaMD EltaMD UV Daily

  U.S. formulation

• EltaMD EltaMD UV Daily SPF40

  SPF 40 as labeled · U.S. formulation

• EltaMD EltaMD UV Shield SPF45

  SPF 45 as labeled · U.S. formulation

• EltaMD EltaMD UV SPF35

  SPF 35 as labeled · U.S. formulation

• Zhejiang Ayan Biotech Co.,Ltd. SPF30 Sunscreen

  SPF 30 as labeled · U.S. formulation

Checking this against your own list

Where this information comes from

Ingredient names, CAS numbers and recorded functions come from SPF Scout’s curated ingredient dictionary, grounded in CosIng, the European Commission’s Cosmetic Ingredient Database. Content © European Union, reused with acknowledgement.

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