Ingredient review

Acrylates/Isobornyl Acrylate Copolymer

INCI: ACRYLATES/ISOBORNYL ACRYLATE COPOLYMER

A reliable film-former that helps makeup and sunscreen stay put, but offers no active skincare benefit.

beautyskincarefilm-former

In plain English

This ingredient is a synthetic polymer that creates a thin, flexible film on your skin. Think of it like a clear, invisible layer that helps other ingredients—like sunscreen or foundation—stay in place longer and resist water or sweat. It doesn't moisturize or treat your skin; its job is purely about improving product performance and feel.

Quick decision guide

Useful, but context matters

Acrylates/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.

  1. Step 1Start with the score, then check the irritation and clogging risk before judging Acrylates/Isobornyl Acrylate Copolymer.
  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 made from acrylic acid derivatives and isobornyl acrylate. It is a film-forming agent commonly used in cosmetics to create a durable, flexible layer on the skin or hair.

How it works

When applied, the copolymer dries to form a continuous, flexible film. This film helps lock in other ingredients, improves water resistance, and reduces transfer of makeup. It also contributes to a smooth, non-tacky finish.

Pros

Boosts product longevity

Helps sunscreen and makeup resist water, sweat, and rubbing, so you don't have to reapply as often.

Improves sensory feel

Leaves a smooth, non-greasy finish that many people prefer, especially in humid conditions.

Cons and cautions

No skin benefit

This ingredient is purely functional—it doesn't moisturize, soothe, or provide any active skincare effect.

Potential tightness

On very dry or sensitive skin, the film can feel slightly tight or uncomfortable, especially if layered heavily.

Best for

  • Anyone wanting long-wear makeup or water-resistant sunscreen
  • People with normal to oily skin who prefer a matte, transfer-proof finish

Use caution if

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

Usage tips

Use a hydrating serum or moisturizer underneath products containing this film-former to avoid any tight feeling.
Double-cleanse at night to thoroughly remove film-forming polymers and prevent buildup.

Safety summary

Acrylates/Isobornyl Acrylate Copolymer is considered safe for use in cosmetics at typical concentrations. It has a low irritation and comedogenic risk, making it suitable for most skin types. No significant safety concerns have been raised by regulatory bodies.

Research notes

Research on this specific copolymer is limited, but the broader class of acrylate copolymers has been reviewed by the Cosmetic Ingredient Review (CIR) panel and found safe for use in cosmetics. Studies focus on its film-forming and water-resistant properties rather than biological activity.

Common label clues

Typical concentration
0.5% to 5%
Regulatory status
Approved for use in cosmetics in the EU, USA, and other major markets. No known restrictions at typical usage levels.
Common uses
Sunscreens, Long-wear foundations, Waterproof mascaras, Setting sprays
Environmental note
As a synthetic polymer, it is not biodegradable. However, it is not classified as a microplastic in most regulatory frameworks.

Good to know

  • This ingredient is often found in 'one-and-done' products like tinted sunscreens or BB creams that combine makeup and sun protection.
  • It is considered safe for use in cosmetics by major regulatory bodies at typical concentrations.

Common questions

What is Acrylates/Isobornyl Acrylate Copolymer in beauty products?

This ingredient is a synthetic polymer that creates a thin, flexible film on your skin. Think of it like a clear, invisible layer that helps other ingredients—like sunscreen or foundation—stay in place longer and resist water or sweat. It doesn't moisturize or treat your skin; its job is purely about improving product performance and feel.

What does Acrylates/Isobornyl Acrylate Copolymer do in a beauty product?

When applied, the copolymer dries to form a continuous, flexible film. This film helps lock in other ingredients, improves water resistance, and reduces transfer of makeup. It also contributes to a smooth, non-tacky finish.

Is Acrylates/Isobornyl Acrylate Copolymer safe for most people?

Acrylates/Isobornyl Acrylate Copolymer is considered safe for use in cosmetics at typical concentrations. It has a low irritation and comedogenic risk, making it suitable for most skin types. No significant safety concerns have been raised by regulatory bodies.

Who should be careful with Acrylates/Isobornyl Acrylate Copolymer?

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

Research sources

Cosmetic Ingredient Review (CIR) - Acrylates Copolymer SafetyOpenEuropean Chemicals Agency (ECHA) - Acrylates/Isobornyl Acrylate CopolymerOpenPubMed - Film-forming polymers in cosmeticsOpen

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.