Ingredient review
VA/Butyl Maleate/Isobornyl Acrylate Copolymer
INCI: VA/BUTYL MALEATE/ISOBORNYL ACRYLATE COPOLYMER
A synthetic film-former that helps products stay put and resist water, but offers no active skincare benefit.
In plain English
This is a plastic-like ingredient that dries down to form a thin, flexible film on your skin or hair. It's commonly used in sunscreens to help them stay on when you sweat or swim, and in long-wear makeup to prevent smudging. Think of it as a clear, invisible shield that helps the product last longer.
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
VA/Butyl Maleate/Isobornyl Acrylate 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 VA/Butyl Maleate/Isobornyl Acrylate 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 vinyl acetate, butyl maleate, and isobornyl acrylate monomers. It is designed to form a continuous, flexible film when applied to the skin or hair.
How it works
When the product dries, the copolymer molecules link together into a thin, water-resistant layer. This film helps other ingredients (like sunscreen filters or pigments) stay in place and resist being washed away by water or sweat.
Pros
Boosts water resistance
Helps sunscreen and makeup stay effective even when you sweat or get wet, so you don't have to reapply as often.
Flexible wear
Unlike some older film-formers, this copolymer creates a flexible film that moves with your skin, reducing the chance of cracking or flaking.
Cons and cautions
No skincare benefit
This ingredient is purely functional—it doesn't hydrate, soothe, or treat the skin. It's just there to make the product last longer.
May require double cleansing
Because it forms a water-resistant film, you may need an oil-based cleanser or micellar water to fully remove it at the end of the day.
Best for
- Anyone who wants long-wearing or water-resistant makeup and sunscreen
- People who swim, sweat, or live in humid climates
Use caution if
- Those who prefer minimal, lightweight formulas and avoid synthetic polymers
Usage tips
Safety summary
Considered safe for topical use in cosmetics at typical concentrations. Low irritation and comedogenic risk. No significant safety concerns reported in regulatory reviews.
Research notes
Limited independent research on this specific copolymer, but it is structurally similar to other widely used film-formers that have a strong safety profile. Regulatory bodies (e.g., CIR, SCCS) have reviewed related acrylate copolymers and found them safe for cosmetic use.
Common label clues
- Typical concentration
- Usually 1–10% in leave-on products
- Regulatory status
- Approved for use in cosmetics in the US, EU, and many other regions. No known restrictions at typical concentrations.
- Common uses
- Sunscreens, Long-wear makeup, Hair styling products, Water-resistant formulas
- Environmental note
- As a synthetic polymer, it is not biodegradable. However, it is used in small amounts and is not known to bioaccumulate significantly.
Good to know
- This copolymer is often used in combination with other film-formers to fine-tune the feel and durability of the product.
- It is considered safe for use in cosmetics by major regulatory bodies when used as intended.
Common questions
What is VA/Butyl Maleate/Isobornyl Acrylate Copolymer in beauty products?
This is a plastic-like ingredient that dries down to form a thin, flexible film on your skin or hair. It's commonly used in sunscreens to help them stay on when you sweat or swim, and in long-wear makeup to prevent smudging. Think of it as a clear, invisible shield that helps the product last longer.
What does VA/Butyl Maleate/Isobornyl Acrylate Copolymer do in a beauty product?
When the product dries, the copolymer molecules link together into a thin, water-resistant layer. This film helps other ingredients (like sunscreen filters or pigments) stay in place and resist being washed away by water or sweat.
Is VA/Butyl Maleate/Isobornyl Acrylate Copolymer safe for most people?
Considered safe for topical use in cosmetics at typical concentrations. Low irritation and comedogenic risk. No significant safety concerns reported in regulatory reviews.
Who should be careful with VA/Butyl Maleate/Isobornyl Acrylate Copolymer?
Those who prefer minimal, lightweight formulas and avoid synthetic polymers
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.