Ingredient review
PEG/PPG-5/2 Methacrylate Crosspolymer
INCI: PEG/PPG-5/2 METHACRYLATE/METHACRYLIC ACID CROSSPOLYMER
A synthetic polymer that helps products stay put and feel smooth, but offers no skin benefit beyond texture.
In plain English
This ingredient is a type of plastic-like polymer that forms a thin, flexible film on the skin. It is commonly added to sunscreens and makeup to make them water-resistant, spread evenly, and last longer. It does not moisturize or treat the skin—it is purely a texture and performance helper.
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/PPG-5/2 Methacrylate 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/PPG-5/2 Methacrylate 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 synthetic crosslinked polymer made from methacrylate monomers modified with PEG and PPG chains. It is designed to create a flexible, water-resistant film when applied to the skin.
How it works
When applied, the polymer molecules link together to form a continuous, invisible film on the skin's surface. This film helps lock in other ingredients, prevents water from washing them away, and gives a smooth, even feel. It also thickens the product slightly, making it easier to apply.
Pros
Boosts water resistance
Helps sunscreens and makeup stay effective longer when you sweat or swim, so you don't have to reapply as often.
Improves product feel
Creates a silky, smooth texture that spreads easily and doesn't feel sticky or heavy on the skin.
Cons and cautions
No active skin benefit
This ingredient is purely a texture and stability aid—it does not hydrate, soothe, or treat any skin concerns.
Potential tightness on dry skin
The film it forms can feel slightly tightening or drying if your skin is already very dry or compromised.
Best for
- Anyone wanting longer-lasting sunscreen or makeup
- People who prefer water-resistant formulas for swimming or humid weather
Use caution if
- Those with very dry or irritated skin who prefer minimal film-formers
Usage tips
Safety summary
PEG/PPG-5/2 Methacrylate Crosspolymer is considered safe for topical use at typical concentrations. It is not absorbed into the skin and has low irritation and comedogenic potential. No significant safety concerns have been reported in cosmetic use.
Research notes
Safety assessments by the Cosmetic Ingredient Review (CIR) panel have found methacrylate crosspolymers to be safe in cosmetics. Most data comes from formulation studies rather than independent clinical trials, but no adverse effects are documented at typical use levels.
Common label clues
- Typical concentration
- 0.5% to 5%
- Regulatory status
- Approved for use in cosmetics in the US (FDA), EU (CosIng), and many other regions. No concentration restrictions are typically imposed for leave-on products.
- Common uses
- Sunscreens, Foundations, Waterproof mascaras, Long-wear lip products
- Environmental note
- As a synthetic polymer, it is not biodegradable. However, it is used in small amounts and is generally removed during wastewater treatment.
Good to know
- This polymer is considered safe for use in cosmetics by major regulatory bodies when used as directed.
- It is not absorbed into the skin—it stays on the surface and is washed off with cleansing.
Common questions
What is PEG/PPG-5/2 Methacrylate Crosspolymer in beauty products?
This ingredient is a type of plastic-like polymer that forms a thin, flexible film on the skin. It is commonly added to sunscreens and makeup to make them water-resistant, spread evenly, and last longer. It does not moisturize or treat the skin—it is purely a texture and performance helper.
What does PEG/PPG-5/2 Methacrylate Crosspolymer do in a beauty product?
When applied, the polymer molecules link together to form a continuous, invisible film on the skin's surface. This film helps lock in other ingredients, prevents water from washing them away, and gives a smooth, even feel. It also thickens the product slightly, making it easier to apply.
Is PEG/PPG-5/2 Methacrylate Crosspolymer safe for most people?
PEG/PPG-5/2 Methacrylate Crosspolymer is considered safe for topical use at typical concentrations. It is not absorbed into the skin and has low irritation and comedogenic potential. No significant safety concerns have been reported in cosmetic use.
Who should be careful with PEG/PPG-5/2 Methacrylate Crosspolymer?
Those with very dry or irritated skin who prefer minimal film-formers
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.