Ingredient review
PEG-10 Acrylate Crosspolymer
INCI: PEG-10 Acrylate Dipentaerythrityl Pentaacrylate/HDI Crosspolymer
A synthetic film-former that helps products stay put and resist water, but offers no active skincare benefit.
In plain English
This ingredient is a synthetic polymer that forms a thin, flexible film on your skin or hair. Think of it like an invisible, breathable plastic wrap that helps makeup last longer or sunscreen stay on when you sweat. It doesn't moisturize or treat your skin—it's purely a performance ingredient.
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
PEG-10 Acrylate Crosspolymer 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 PEG-10 Acrylate Crosspolymer.
- 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
A large, crosslinked polymer molecule created by reacting acrylic acid derivatives with a diisocyanate (HDI) and PEG chains. It's designed to form a continuous, flexible film when the water or solvent in a product evaporates.
How it works
When applied, the polymer chains spread out and then link together as the product dries, creating a uniform film. This film physically blocks water and oil from moving through it, improving water resistance and wear time. It also thickens the product slightly, giving a smoother application.
Pros
Boosts water resistance
Helps sunscreens and makeup stay effective even when you sweat or get wet, so you don't have to reapply as often.
Improves wear time
Creates a flexible film that keeps foundation, eyeliner, or lip color in place for hours without smudging.
Cons and cautions
No active benefit
This ingredient does not moisturize, soothe, or treat skin—it's purely a performance enhancer, so it won't improve your skin's health.
Can feel tight or dry
The film it forms may feel slightly stiff or drying on very sensitive or dehydrated skin, especially if used in high concentrations.
Best for
- People who want long-wearing makeup or water-resistant sunscreen
- Those with oily skin who prefer a matte, stay-put finish
Use caution if
- Anyone with very dry or compromised skin who may find film-formers uncomfortable
Usage tips
Safety summary
Considered safe for cosmetic use at typical concentrations. It is not absorbed through skin and has a very low irritation and allergy potential. No significant safety concerns have been raised by regulatory bodies.
Research notes
Safety is supported by industry data and regulatory reviews. There are no published human clinical trials on this specific polymer, but its chemical class (acrylate crosspolymers) has a long history of safe use in cosmetics.
Common label clues
- Typical concentration
- 0.5% to 5%
- Regulatory status
- Approved for use in cosmetics in the US (FDA), EU, and many other regions. No specific concentration limits are set, but it is generally recognized as safe at typical use levels.
- Common uses
- Sunscreens, Long-wear makeup, Water-resistant formulas, Hair styling products
- Environmental note
- As a synthetic polymer, it is not biodegradable and may accumulate in the environment. However, it is used in very small amounts per product.
Good to know
- This ingredient is often listed near the end of an ingredient list because it's used in small amounts.
- It is not absorbed into the skin—it stays on the surface to form its protective film.
- Commonly found in 'water-resistant' or 'long-wear' labeled products.
Common questions
What is PEG-10 Acrylate Crosspolymer in beauty products?
This ingredient is a synthetic polymer that forms a thin, flexible film on your skin or hair. Think of it like an invisible, breathable plastic wrap that helps makeup last longer or sunscreen stay on when you sweat. It doesn't moisturize or treat your skin—it's purely a performance ingredient.
What does PEG-10 Acrylate Crosspolymer do in a beauty product?
When applied, the polymer chains spread out and then link together as the product dries, creating a uniform film. This film physically blocks water and oil from moving through it, improving water resistance and wear time. It also thickens the product slightly, giving a smoother application.
Is PEG-10 Acrylate Crosspolymer safe for most people?
Considered safe for cosmetic use at typical concentrations. It is not absorbed through skin and has a very low irritation and allergy potential. No significant safety concerns have been raised by regulatory bodies.
Who should be careful with PEG-10 Acrylate Crosspolymer?
Anyone with very dry or compromised skin who may find film-formers uncomfortable
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.