Ingredient review
PEG/PPG-75/25 Carbonic Acid Copolymer
INCI: PEG/PPG-75/25 Carbonic Acid Copolymer
A synthetic polymer that helps makeup and skincare last longer by forming a flexible film on the skin.
In plain English
This ingredient is a man-made polymer, which is a type of plastic-like molecule. When applied to the skin, it dries down into a thin, flexible film. This film helps other ingredients stay in place, reduces smudging, and can make the skin feel smoother. It is commonly used in long-wear foundations and primers to improve durability.
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-75/25 Carbonic Acid Copolymer 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-75/25 Carbonic Acid Copolymer.
- 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
PEG/PPG-75/25 Carbonic Acid Copolymer is a synthetic polymer created by reacting carbonic acid with polyethylene glycol (PEG) and polypropylene glycol (PPG). It is a water-soluble film former that dries to a clear, flexible layer on the skin.
How it works
After application, the water in the product evaporates, leaving behind a thin polymer film. This film physically holds pigments and other ingredients in place, improving water resistance and wear time. It also adds a slight thickening effect to the formula, improving texture and spreadability.
Pros
Boosts wear time
Creates a flexible film that helps makeup resist sweat, humidity, and transfer, so your look stays fresh longer.
Improves texture
Smooths the skin's surface, making it an excellent base for foundation and helping other products apply more evenly.
Cons and cautions
Can feel drying
On dry or flaky skin, the film may tighten or accentuate dry patches, leading to an uncomfortable feel.
Requires double cleansing
Because it forms a water-resistant film, it may not rinse off with water alone and often needs an oil-based cleanser for complete removal.
Best for
- People who want long-wearing makeup that stays put all day
- Those with normal to oily skin who prefer a matte or semi-matte finish
Use caution if
- Individuals with very dry or dehydrated skin, as the film may emphasize flakiness or feel tight
Usage tips
Safety summary
PEG/PPG-75/25 Carbonic Acid Copolymer is considered safe for cosmetic use at typical concentrations. It has a low irritation and comedogenic risk. Some individuals with very dry or sensitive skin may experience mild tightness or dryness.
Research notes
Safety assessments of PEG/PPG copolymers by the Cosmetic Ingredient Review (CIR) panel have concluded they are safe in cosmetic formulations. There is limited specific research on this exact copolymer, but it is chemically similar to other well-studied film-forming polymers.
Common label clues
- Typical concentration
- 0.5% to 5%
- Regulatory status
- Approved for use in cosmetics in the US, EU, and many other regions. The Cosmetic Ingredient Review (CIR) panel has evaluated similar PEG/PPG copolymers and found them safe as used.
- Common uses
- Foundations, Primers, Sunscreens, Long-wear makeup
- Environmental note
- As a synthetic polymer, it is not biodegradable and may contribute to microplastic pollution. However, it is used in small amounts and is not classified as a primary microplastic concern.
Good to know
- This ingredient is often found in 'transfer-proof' or '24-hour wear' makeup claims.
- It is considered safe for use in cosmetics by major regulatory bodies at typical concentrations.
Common questions
What is PEG/PPG-75/25 Carbonic Acid Copolymer in beauty products?
This ingredient is a man-made polymer, which is a type of plastic-like molecule. When applied to the skin, it dries down into a thin, flexible film. This film helps other ingredients stay in place, reduces smudging, and can make the skin feel smoother. It is commonly used in long-wear foundations and primers to improve durability.
What does PEG/PPG-75/25 Carbonic Acid Copolymer do in a beauty product?
After application, the water in the product evaporates, leaving behind a thin polymer film. This film physically holds pigments and other ingredients in place, improving water resistance and wear time. It also adds a slight thickening effect to the formula, improving texture and spreadability.
Is PEG/PPG-75/25 Carbonic Acid Copolymer safe for most people?
PEG/PPG-75/25 Carbonic Acid Copolymer is considered safe for cosmetic use at typical concentrations. It has a low irritation and comedogenic risk. Some individuals with very dry or sensitive skin may experience mild tightness or dryness.
Who should be careful with PEG/PPG-75/25 Carbonic Acid Copolymer?
Individuals with very dry or dehydrated skin, as the film may emphasize flakiness or feel tight
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.