Ingredient review

PEG-7/PPG-2 Pentaerythrityl Triacrylate/Dipropylaminopropionate

INCI: PEG-7/PPG-2 PENTAERYTHRITYL TRIACRYLATE/DIPROPYLAMINOPROPIONATE

A synthetic film-former that helps products stay put, but offers no active skincare benefit.

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In plain English

This is a man-made polymer that dries down to form a thin, flexible film on your skin or hair. Think of it like a clear, invisible layer that helps makeup last longer or helps hair hold its style. It's not a moisturizer or active ingredient—it's more of a helper ingredient that improves how a product feels and performs.

Review score

Safety, usefulness, and evidence

3.5Good
3.5/ 5

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
How reviews are scored

Quick decision guide

Useful, but context matters

PEG-7/PPG-2 Pentaerythrityl Triacrylate/Dipropylaminopropionate 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 PEG-7/PPG-2 Pentaerythrityl Triacrylate/Dipropylaminopropionate.
  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 created by reacting pentaerythrityl triacrylate with dipropylaminopropionate and modifying it with PEG-7 and PPG-2 chains. It is designed to form a uniform, water-resistant film when applied to skin or hair.

How it works

When the product is applied and the water or solvent evaporates, the polymer molecules link together into a continuous film. This film adheres to the surface, providing water resistance, smudge resistance, and a smooth feel. In hair products, it can help hold curls or reduce frizz by coating each strand.

Pros

Boosts product longevity

Helps foundation, mascara, and sunscreen stay put through sweat, humidity, and water exposure, so you don't have to reapply as often.

Lightweight feel

Unlike some older film-formers, this polymer dries to a flexible, non-sticky layer that doesn't feel heavy or cakey on the skin.

Cons and cautions

No skincare benefit

This ingredient is purely functional—it doesn't hydrate, soothe, or treat the skin. If you're looking for active ingredients, this won't deliver them.

Can be hard to remove

Because it's water-resistant, you may need an oil-based or dual-phase cleanser to fully remove products containing this polymer, especially around the eyes.

Best for

  • Anyone wanting long-lasting, water-resistant makeup or sunscreen
  • People with oily or combination skin who prefer a matte finish

Use caution if

  • Those with very dry or dehydrated skin who may find film-formers uncomfortable

Usage tips

Use a double-cleansing method (oil cleanser followed by water-based cleanser) to ensure complete removal.
If you have dry skin, pair products containing this polymer with a good moisturizer underneath to avoid a tight feeling.
For hair products, apply to damp hair for even distribution and flexible hold.

Safety summary

Considered safe for use in cosmetics at typical concentrations. Low irritation and comedogenic potential. No known significant health concerns based on current data.

Research notes

Safety data is based on general polymer toxicology and industry experience. No specific peer-reviewed studies on this exact ingredient were found, but similar film-forming polymers have a long history of safe use.

Common label clues

Typical concentration
0.5% to 5%
Regulatory status
Approved for use in cosmetics in the US, EU, and other major markets. No specific restrictions at typical use levels.
Common uses
Long-wear foundations, Waterproof mascaras, Sunscreens, Hair styling products
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

  • This ingredient is often found in 'long-wear' or '24-hour' makeup formulas.
  • It is not a common allergen, but patch testing is always wise for new products.

Common questions

What is PEG-7/PPG-2 Pentaerythrityl Triacrylate/Dipropylaminopropionate in beauty products?

This is a man-made polymer that dries down to form a thin, flexible film on your skin or hair. Think of it like a clear, invisible layer that helps makeup last longer or helps hair hold its style. It's not a moisturizer or active ingredient—it's more of a helper ingredient that improves how a product feels and performs.

What does PEG-7/PPG-2 Pentaerythrityl Triacrylate/Dipropylaminopropionate do in a beauty product?

When the product is applied and the water or solvent evaporates, the polymer molecules link together into a continuous film. This film adheres to the surface, providing water resistance, smudge resistance, and a smooth feel. In hair products, it can help hold curls or reduce frizz by coating each strand.

Is PEG-7/PPG-2 Pentaerythrityl Triacrylate/Dipropylaminopropionate safe for most people?

Considered safe for use in cosmetics at typical concentrations. Low irritation and comedogenic potential. No known significant health concerns based on current data.

Who should be careful with PEG-7/PPG-2 Pentaerythrityl Triacrylate/Dipropylaminopropionate?

Those with very dry or dehydrated skin who may find film-formers uncomfortable

Research sources

Cosmetic Ingredient Review (CIR) - Safety of Acrylate PolymersOpenEuropean Chemicals Agency (ECHA) - Substance InformationOpenPersonal Care Council - INCI DirectoryOpen

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.