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Ingredient deep-dive

Polyperfluoromethylisopropyl Ether: Is It a Microplastic?

High concernPlasticiser / chemical of concern

Fluoropolymer ether used as a conditioning and water-repellent agent. Both a synthetic polymer and a PFAS, which makes it one of the least desirable entries on any ingredient list.

Where it appears

  • Long-wear cosmetics
  • Hair treatments
  • Water-repellent formulas

Regulatory status (2026)

European Union

Within scope of the proposed universal PFAS restriction.

United States

Restricted by state PFAS-in-cosmetics laws.

Cleaner alternatives

  • Plant waxes
  • Squalane
  • Mineral-based alternatives

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Polyperfluoromethylisopropyl Ether, common questions

Is Polyperfluoromethylisopropyl Ether a microplastic?

Yes. Fluoropolymer ether used as a conditioning and water-repellent agent. Both a synthetic polymer and a PFAS, which makes it one of the least desirable entries on any ingredient list.

Is Polyperfluoromethylisopropyl Ether banned?

EU: Within scope of the proposed universal PFAS restriction. US: Restricted by state PFAS-in-cosmetics laws.

What can I use instead of Polyperfluoromethylisopropyl Ether?

Cleaner alternatives include: Plant waxes; Squalane; Mineral-based alternatives.

What products contain Polyperfluoromethylisopropyl Ether?

Commonly found in: Long-wear cosmetics; Hair treatments; Water-repellent formulas.

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Parabens

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Phthalates

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BHT / BHA

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Synthetic antioxidants, co-occurrence flag in plastic-heavy formulas.

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DEHP (Diethylhexyl Phthalate)

Plasticiser / chemical of concern · High concern

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