Ingredient review
PEG-7/PPG-2 Pentaerythrityl Tetraacrylate
INCI: PEG-7/PPG-2 Pentaerythrityl Tetraacrylate
A synthetic film-former that helps makeup and sunscreen stay put, but offers no skincare benefit.
In plain English
This ingredient is a synthetic polymer that forms a thin, flexible film on your skin. Think of it like a clear, invisible layer that helps makeup resist smudging and keeps sunscreen from washing off easily. It doesn't moisturize or treat your skin—it's purely a performance booster for cosmetic 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
PEG-7/PPG-2 Pentaerythrityl Tetraacrylate 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-7/PPG-2 Pentaerythrityl Tetraacrylate.
- 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 polymer created by reacting ethylene oxide and propylene oxide with pentaerythritol and acrylic acid. It belongs to the acrylate family and is designed to form a flexible, water-resistant film.
How it works
When applied to the skin, the polymer chains spread out and then link together as the solvent evaporates, creating a continuous film. This film physically locks in pigments and other ingredients, improving adherence and resistance to water, sweat, and friction.
Pros
Boosts wear time
Helps makeup and sunscreen last longer by forming a flexible film that resists smudging and water.
Lightweight feel
The film is thin and flexible, so it doesn't feel heavy or sticky on the skin.
Cons and cautions
No skincare benefit
This ingredient does not moisturize, soothe, or treat the skin—it's purely a performance enhancer.
Potential tightness
On very dry or sensitive skin, the film can sometimes feel tight or slightly drying.
Best for
- Anyone wanting long-wearing makeup or water-resistant sunscreen
- People with oily skin who need products that stay put
Use caution if
- Those with very dry or compromised skin barriers who prefer nourishing ingredients
Usage tips
Safety summary
Considered safe for topical use at typical concentrations. Low irritation and comedogenic risk. No known serious safety concerns, but it is not a beneficial skincare active.
Research notes
Limited independent research on this specific polymer, but acrylate-based film-formers are widely used and generally regarded as safe by cosmetic ingredient review panels.
Common label clues
- Typical concentration
- Typically 1–5% in leave-on products
- Regulatory status
- Approved for use in cosmetics in the US (FDA) and EU (CosIng) at typical concentrations. No specific restrictions.
- Common uses
- Long-wear makeup, Water-resistant sunscreens, Waterproof mascara
- Environmental note
- As a synthetic polymer, it may not be biodegradable. Check product labeling for eco-friendly claims.
Good to know
- This ingredient is often found in 'waterproof' or 'long-wear' labeled products.
- It is not a humectant or emollient—it won't hydrate your skin.
Common questions
What is PEG-7/PPG-2 Pentaerythrityl Tetraacrylate in beauty products?
This ingredient is a synthetic polymer that forms a thin, flexible film on your skin. Think of it like a clear, invisible layer that helps makeup resist smudging and keeps sunscreen from washing off easily. It doesn't moisturize or treat your skin—it's purely a performance booster for cosmetic products.
What does PEG-7/PPG-2 Pentaerythrityl Tetraacrylate do in a beauty product?
When applied to the skin, the polymer chains spread out and then link together as the solvent evaporates, creating a continuous film. This film physically locks in pigments and other ingredients, improving adherence and resistance to water, sweat, and friction.
Is PEG-7/PPG-2 Pentaerythrityl Tetraacrylate safe for most people?
Considered safe for topical use at typical concentrations. Low irritation and comedogenic risk. No known serious safety concerns, but it is not a beneficial skincare active.
Who should be careful with PEG-7/PPG-2 Pentaerythrityl Tetraacrylate?
Those with very dry or compromised skin barriers who prefer nourishing ingredients
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.