Ingredient review

Perfluorohexylethyl Acrylates Copolymer

INCI: ACRYLATES/PERFLUOROHEXYLETHYL METHACRYLATE COPOLYMER

A synthetic film-former that helps makeup and sunscreen stay put, but its perfluoro (PFAS) chemistry raises environmental concerns.

beautyskincarefilm-former

In plain English

This is a synthetic polymer that forms a thin, flexible film on skin or lashes. It's what makes a foundation last all day or a mascara smudge-proof. Think of it like a clear, invisible raincoat for your makeup. Because it contains perfluoro (PFAS) chemistry, it's very water-resistant, but that same property has raised questions about environmental persistence.

Quick decision guide

Useful, but context matters

Perfluorohexylethyl Acrylates Copolymer is generally a lower-concern ingredient when the full formula suits your skin.

Plain-English read

Treat this as a practical screening step before you compare products that contain this ingredient.

  1. Step 1Start with the score, then check the irritation and clogging risk before judging Perfluorohexylethyl Acrylates Copolymer.
  2. Step 2Use the "Best for" and "Use caution if" sections to match the ingredient to your skin, not just to a marketing claim.
  3. Step 3If a product stings, breaks you out, or worsens irritation, judge the finished formula and stop using it even if the ingredient scores well.

Score terms in plain English

Irritation risk

low

Less likely to sting, burn, or bother most users, though sensitive skin can still react.

Clogging risk

low

Less likely to feel heavy or contribute to clogged pores for most skin types.

Evidence level

moderate

There is useful support, but formula details and claim strength still matter.

What it is

A synthetic copolymer made from acrylic acid derivatives and a perfluorohexylethyl methacrylate monomer. It belongs to a class of ingredients often called PFAS (per- and polyfluoroalkyl substances) due to the fluorinated side chain.

How it works

When the product dries, the polymer chains link together into a continuous film. The perfluoro segment gives the film extremely low surface energy, repelling both water and oil. This creates a durable, transfer-resistant barrier that locks in pigments and active ingredients.

Pros

Exceptional wear time

Creates a durable film that keeps makeup and sunscreen in place for hours, even through sweat and humidity.

Water and oil repellent

The perfluoro chemistry repels both water and skin oils, reducing the need for touch-ups.

Cons and cautions

Environmental persistence

As a PFAS ingredient, it does not break down easily in the environment and may accumulate over time.

Removal difficulty

Requires an oil-based or dual-phase cleanser to fully remove; leftover film can cause clogged pores or irritation.

Best for

  • Anyone wanting long-wear makeup or water-resistant sunscreen
  • People with oily skin who struggle with makeup fading

Use caution if

  • Those seeking fully biodegradable or PFAS-free formulations
  • Very dry or sensitive skin that reacts to heavy film-formers

Usage tips

Use an oil-based cleanser or micellar water to thoroughly remove products containing this polymer.
Layer over a moisturizer to prevent the film from feeling too tight on dry skin.
Check your sunscreen's ingredient list if you want a water-resistant formula without PFAS.

Safety summary

Generally considered safe for topical use at typical concentrations. Low irritation and comedogenic risk. The main concern is environmental persistence, not acute toxicity to users.

Research notes

Studies confirm its film-forming and water-resistance benefits. Environmental persistence data for this specific copolymer is limited, but PFAS in general are under review by agencies like the ECHA and FDA.

Common label clues

Typical concentration
0.5% to 5%
Regulatory status
Approved for use in cosmetics in the US and EU, but some countries (e.g., Denmark) have restricted certain PFAS in cosmetics. No specific ban on this copolymer as of 2025.
Common uses
Long-wear foundations, Waterproof mascaras, Sunscreens, Lip products
Environmental note
PFAS are known as 'forever chemicals' because they resist degradation. This ingredient may contribute to environmental PFAS accumulation, though its specific impact is less studied than older PFAS like PFOA.

Good to know

  • This ingredient is part of the broader PFAS family, which is under regulatory scrutiny in some regions.
  • It is not the same as Teflon (PTFE), but shares similar environmental concerns.

Common questions

What is Perfluorohexylethyl Acrylates Copolymer in beauty products?

This is a synthetic polymer that forms a thin, flexible film on skin or lashes. It's what makes a foundation last all day or a mascara smudge-proof. Think of it like a clear, invisible raincoat for your makeup. Because it contains perfluoro (PFAS) chemistry, it's very water-resistant, but that same property has raised questions about environmental persistence.

What does Perfluorohexylethyl Acrylates Copolymer do in a beauty product?

When the product dries, the polymer chains link together into a continuous film. The perfluoro segment gives the film extremely low surface energy, repelling both water and oil. This creates a durable, transfer-resistant barrier that locks in pigments and active ingredients.

Is Perfluorohexylethyl Acrylates Copolymer safe for most people?

Generally considered safe for topical use at typical concentrations. Low irritation and comedogenic risk. The main concern is environmental persistence, not acute toxicity to users.

Who should be careful with Perfluorohexylethyl Acrylates Copolymer?

Those seeking fully biodegradable or PFAS-free formulations Very dry or sensitive skin that reacts to heavy film-formers

Research sources

CosIng Database (EU Commission)OpenEnvironmental Working Group (EWG) – PFAS in CosmeticsOpenPubMed – Safety of Acrylate Copolymers in CosmeticsOpen

Ingredient reviews are educational and are not medical advice. Patch test new products and ask a licensed clinician about persistent irritation, allergies, pregnancy-specific questions, or diagnosed skin conditions.