Ingredient review
Bis-PEG/PPG/IPDI Copolymer
INCI: BIS-PEG-2/PPG-3/IPDI COPOLYMER
A synthetic polymer that helps makeup and sunscreen stay put longer, especially in water or sweat.
In plain English
This ingredient is a type of plastic-like film that forms a flexible, invisible layer on your skin. It helps other ingredients—like sunscreen or foundation—stay in place and resist water, sweat, and rubbing. Think of it like a gentle, breathable glue that holds your product where you put it.
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
Bis-PEG/PPG/IPDI 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 Bis-PEG/PPG/IPDI 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
A synthetic copolymer made from polyethylene glycol (PEG), polypropylene glycol (PPG), and isophorone diisocyanate (IPDI). It is a film-forming agent commonly used in cosmetics to create a durable, water-resistant layer on skin or hair.
How it works
When applied, the copolymer dries into a thin, flexible film that physically locks in other ingredients. This film reduces the transfer of makeup and prevents sunscreen from washing off easily. It also helps products feel smoother and more spreadable during application.
Pros
Boosts water resistance
Helps sunscreen and makeup stay effective even when you sweat or swim, reducing the need for frequent reapplication.
Improves wear time
Creates a flexible film that keeps foundation and mascara from smudging or fading throughout the day.
Cons and cautions
Synthetic origin
Made from petrochemical-derived materials, which may not align with natural or minimalist skincare preferences.
Potential tightness on dry skin
The film can feel slightly stiff or drying if you have very dry or dehydrated skin, especially in cold weather.
Best for
- Anyone wanting long-wear or waterproof makeup
- People who need water-resistant sunscreen for swimming or sweating
Use caution if
- Those who prefer 100% natural or silicone-free routines
- Individuals with very sensitive skin that reacts to film formers
Usage tips
Safety summary
Generally recognized as safe for topical use in cosmetics. Low irritation and comedogenic risk. No significant safety concerns have been reported in normal use.
Research notes
Limited peer-reviewed studies specifically on this copolymer, but film-forming polymers of this class are well-documented for safety and efficacy in cosmetic formulations. The CIR has reviewed similar ingredients and found them safe.
Common label clues
- Typical concentration
- 1–10% in leave-on products
- Regulatory status
- Approved for use in cosmetics in the EU, US, and many other regions. The Cosmetic Ingredient Review (CIR) panel has evaluated similar film-forming polymers and found them safe at typical use levels.
- Common uses
- Sunscreens, Long-wear foundations, Waterproof mascaras, Lip products
- Environmental note
- As a synthetic polymer, it may not be biodegradable. However, it is used in very low concentrations, and its environmental impact is considered minimal compared to microplastics.
Good to know
- This ingredient is often listed near the end of ingredient lists because it is used in small amounts.
- It is considered safe for use in cosmetics by major regulatory bodies when used as directed.
Common questions
What is Bis-PEG/PPG/IPDI Copolymer in beauty products?
This ingredient is a type of plastic-like film that forms a flexible, invisible layer on your skin. It helps other ingredients—like sunscreen or foundation—stay in place and resist water, sweat, and rubbing. Think of it like a gentle, breathable glue that holds your product where you put it.
What does Bis-PEG/PPG/IPDI Copolymer do in a beauty product?
When applied, the copolymer dries into a thin, flexible film that physically locks in other ingredients. This film reduces the transfer of makeup and prevents sunscreen from washing off easily. It also helps products feel smoother and more spreadable during application.
Is Bis-PEG/PPG/IPDI Copolymer safe for most people?
Generally recognized as safe for topical use in cosmetics. Low irritation and comedogenic risk. No significant safety concerns have been reported in normal use.
Who should be careful with Bis-PEG/PPG/IPDI Copolymer?
Those who prefer 100% natural or silicone-free routines Individuals with very sensitive skin that reacts to 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.