Ingredient review
Polyethylhexyl Acrylate
INCI: Polyethylhexyl Acrylate
A synthetic film-former that helps makeup and sunscreen stay put longer without feeling heavy or sticky.
In plain English
Polyethylhexyl Acrylate is a synthetic polymer that creates a thin, flexible film on your skin. Think of it like an invisible, breathable shield that helps your makeup or sunscreen resist sweat, water, and rubbing. It doesn't clog pores or cause irritation for most people, and it's commonly found in long-wear and waterproof products.
Review score
Safety, usefulness, and evidence
Potentially useful with some tradeoffs
The evidence base is useful, but some claims depend heavily on the formula.
Risk flags are low for most users, though the finished product can still irritate.
- Source
- synthetic
- Evidence
- moderate
- Irritation
- low
- Clogging risk
- low
Quick decision guide
Useful, but context matters
Polyethylhexyl Acrylate 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.
- Step 1Start with the score, then check the irritation and clogging risk before judging Polyethylhexyl Acrylate.
- Step 2Use the "Best for" and "Use caution if" sections to match the ingredient to your skin, not just to a marketing claim.
- 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
lowLess likely to sting, burn, or bother most users, though sensitive skin can still react.
Clogging risk
lowLess likely to feel heavy or contribute to clogged pores for most skin types.
Evidence level
moderateThere is useful support, but formula details and claim strength still matter.
What it is
Polyethylhexyl Acrylate is a high-molecular-weight polymer made from acrylic acid derivatives. It is a clear, flexible film-forming agent that is insoluble in water, making it ideal for creating water-resistant and long-lasting cosmetic formulas.
How it works
When applied to the skin, the polymer chains spread out and then dry to form a continuous, flexible film. This film physically locks in pigments and active ingredients, preventing them from smudging, transferring, or being washed away by water or sweat. It also helps control the viscosity of the product for a smooth application.
Pros
Long-lasting wear
Creates a flexible film that helps makeup and sunscreen resist smudging, water, and sweat for hours.
Lightweight feel
Unlike older film-formers, it dries to a thin, non-sticky finish that doesn't feel heavy or cakey.
Cons and cautions
Requires double cleansing
Because it forms a water-resistant film, you'll likely need an oil-based cleanser or micellar water to remove it completely.
Synthetic ingredient
If you're avoiding synthetic polymers or prefer a fully natural routine, this ingredient won't fit your criteria.
Best for
- Anyone looking for long-wearing or waterproof makeup and sunscreen
- People with oily or combination skin who want products that stay put
Use caution if
- Those who prefer water-based, easily removable formulas or have very dry, flaky skin
Usage tips
Safety summary
Polyethylhexyl Acrylate is considered safe for topical use in cosmetics. It has low irritation and comedogenic potential. The main practical concern is that it may require double cleansing for complete removal.
Research notes
Safety assessments of acrylate copolymers by the Cosmetic Ingredient Review (CIR) and the European Chemicals Agency (ECHA) support their safe use in leave-on and rinse-off products at typical concentrations. No significant skin sensitization or toxicity has been reported in cosmetic use.
Common label clues
- Typical concentration
- 0.5% to 5%
- Regulatory status
- Approved for use in cosmetics in the EU, US, and other major markets. The Cosmetic Ingredient Review (CIR) panel has reviewed similar acrylate polymers and found them safe as used.
- Common uses
- Sunscreens, Long-wear foundations, Waterproof mascaras, Setting sprays
- Environmental note
- As a synthetic polymer, it is not biodegradable. However, it is used in low concentrations and is not known to bioaccumulate significantly.
Good to know
- Polyethylhexyl Acrylate is often used alongside other film-formers like Acrylates Copolymer to fine-tune flexibility and water resistance.
- It is considered safe by major regulatory bodies when used in cosmetic concentrations.
Common questions
What is Polyethylhexyl Acrylate in beauty products?
Polyethylhexyl Acrylate is a synthetic polymer that creates a thin, flexible film on your skin. Think of it like an invisible, breathable shield that helps your makeup or sunscreen resist sweat, water, and rubbing. It doesn't clog pores or cause irritation for most people, and it's commonly found in long-wear and waterproof products.
What does Polyethylhexyl Acrylate do in a beauty product?
When applied to the skin, the polymer chains spread out and then dry to form a continuous, flexible film. This film physically locks in pigments and active ingredients, preventing them from smudging, transferring, or being washed away by water or sweat. It also helps control the viscosity of the product for a smooth application.
Is Polyethylhexyl Acrylate safe for most people?
Polyethylhexyl Acrylate is considered safe for topical use in cosmetics. It has low irritation and comedogenic potential. The main practical concern is that it may require double cleansing for complete removal.
Who should be careful with Polyethylhexyl Acrylate?
Those who prefer water-based, easily removable formulas or have very dry, flaky skin
Research sources
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.