Ingredient review

AMP-Acrylates/Diacetoneacrylamide Copolymer

INCI: AMP-ACRYLATES/DIACETONEACRYLAMIDE COPOLYMER

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

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In plain English

This ingredient is a synthetic polymer that forms a thin, flexible film on your skin or hair. Think of it like a clear, breathable plastic wrap that helps makeup last longer or keeps sunscreen from washing off. It doesn't treat or improve your skin—it just helps the product stay in place.

Quick decision guide

Useful, but context matters

AMP-Acrylates/Diacetoneacrylamide 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 AMP-Acrylates/Diacetoneacrylamide 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 created from acrylic acid derivatives and diacetoneacrylamide, designed to form a flexible, water-resistant film when applied to skin or hair.

How it works

When the product dries, the polymer molecules link together into a continuous film that sits on the surface. This film resists water, sweat, and rubbing, helping the product stay intact for hours. It also slightly thickens the formula, giving it a nicer texture.

Pros

Boosts wear time

Creates a flexible film that helps makeup and sunscreen resist sweat, water, and rubbing, so you need fewer touch-ups.

Improves texture

Adds a slight thickening effect, making creams and lotions feel smoother and more luxurious during application.

Cons and cautions

No skin benefit

This is a purely functional ingredient—it doesn't hydrate, soothe, or repair skin, so it adds no active value to your routine.

Can feel tight

On very dry or sensitive skin, the film may create a stiff or uncomfortable sensation, especially in cold weather.

Best for

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

Use caution if

  • Those with very dry or dehydrated skin who dislike a tight, film-like feel

Usage tips

Apply a hydrating serum or moisturizer underneath products containing this polymer to avoid a tight feeling.
Use an oil-based cleanser or micellar water to thoroughly remove film-forming products at the end of the day.

Safety summary

Considered safe for cosmetic use at typical concentrations. Low irritation and comedogenic risk. No known toxicity or allergenicity concerns from regulatory panels.

Research notes

Limited independent studies on this specific copolymer, but the broader class of acrylate copolymers has been reviewed by the Cosmetic Ingredient Review (CIR) panel and found safe for use in cosmetics.

Common label clues

Typical concentration
0.5% to 5%
Regulatory status
Approved for use in cosmetics globally with no known restrictions at typical concentrations.
Common uses
Sunscreens, Waterproof makeup, Hair styling products, Long-wear foundations
Environmental note
As a synthetic polymer, it may not be biodegradable; however, it is used in small amounts and is not considered a major environmental concern.

Good to know

  • This polymer is often used in 'transfer-proof' or '24-hour' makeup claims.
  • It is not absorbed into the skin—it sits on the surface and is removed with cleansing.

Common questions

What is AMP-Acrylates/Diacetoneacrylamide Copolymer in beauty products?

This ingredient is a synthetic polymer that forms a thin, flexible film on your skin or hair. Think of it like a clear, breathable plastic wrap that helps makeup last longer or keeps sunscreen from washing off. It doesn't treat or improve your skin—it just helps the product stay in place.

What does AMP-Acrylates/Diacetoneacrylamide Copolymer do in a beauty product?

When the product dries, the polymer molecules link together into a continuous film that sits on the surface. This film resists water, sweat, and rubbing, helping the product stay intact for hours. It also slightly thickens the formula, giving it a nicer texture.

Is AMP-Acrylates/Diacetoneacrylamide Copolymer safe for most people?

Considered safe for cosmetic use at typical concentrations. Low irritation and comedogenic risk. No known toxicity or allergenicity concerns from regulatory panels.

Who should be careful with AMP-Acrylates/Diacetoneacrylamide Copolymer?

Those with very dry or dehydrated skin who dislike a tight, film-like feel

Research sources

Cosmetic Ingredient Review (CIR) - Acrylates Copolymers SafetyOpenPubChem - DiacetoneacrylamideOpenEuropean Chemicals Agency (ECHA) - AMP-Acrylates CopolymerOpen

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.