Ingredient review

AMP-Acrylates Copolymer

INCI: AMP-ACRYLATES/ETHYLHEXYL ACRYLATE COPOLYMER

A safe, synthetic film-former that helps makeup and sunscreen stay put without clogging pores.

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In plain English

This is a synthetic polymer that forms a thin, flexible film on your skin or lashes. Think of it like an invisible, breathable shield that helps makeup last longer, prevents sunscreen from washing off, and gives products a smooth, even feel. It's not an active skincare ingredient—it's a helper that improves how a product performs.

Quick decision guide

Useful, but context matters

AMP-Acrylates 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 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 by reacting AMP (aminomethyl propanol) with acrylic and ethylhexyl acrylate monomers. It's a film-forming agent that dries down to a flexible, water-resistant layer.

How it works

When applied, the polymer's molecules link together as the solvent (usually water) evaporates, forming a continuous film. This film physically locks pigments and active ingredients in place, resists water and sweat, and creates a smooth, uniform surface.

Pros

Boosts product longevity

Helps makeup and sunscreen stay in place for hours, reducing the need for touch-ups.

Lightweight and non-comedogenic

Forms a thin, breathable film that doesn't clog pores, making it suitable for acne-prone skin.

Cons and cautions

Can feel drying in high amounts

In very high concentrations, the film may create a slight tight or dry sensation, especially on already dry skin.

Not biodegradable

As a synthetic polymer, it doesn't break down easily in the environment, which may be a concern for eco-conscious users.

Best for

  • Anyone wanting long-lasting makeup or water-resistant sunscreen
  • People with oily or combination skin who prefer matte, transfer-resistant formulas

Use caution if

  • Those with very dry or dehydrated skin may find high-concentration formulas slightly tightening

Usage tips

Use a setting spray containing this polymer to lock in makeup without adding extra layers.
Pair with a hydrating moisturizer underneath if you have dry skin to offset any potential tightness.

Safety summary

Considered safe for topical use at typical concentrations. Low irritation and comedogenic risk. No known toxicity or systemic absorption concerns.

Research notes

Safety assessments by the Cosmetic Ingredient Review (CIR) panel have concluded that acrylate copolymers are safe in cosmetics when formulated properly. No significant human or environmental toxicity has been reported.

Common label clues

Typical concentration
0.5% to 5%
Regulatory status
Approved for use in cosmetics globally, including by the FDA (USA) and EU CosIng database, with no concentration restrictions.
Common uses
Sunscreens, Foundations, Mascaras, Eyeliners, Setting Sprays
Environmental note
As a synthetic polymer, it is not readily biodegradable. Some brands are moving toward bio-based film formers, but this remains a common, effective choice.

Good to know

  • This ingredient is often listed near the end of ingredient lists because it's used in small amounts.
  • It's commonly found in 'waterproof' and 'long-wear' formulas.

Common questions

What is AMP-Acrylates Copolymer in beauty products?

This is a synthetic polymer that forms a thin, flexible film on your skin or lashes. Think of it like an invisible, breathable shield that helps makeup last longer, prevents sunscreen from washing off, and gives products a smooth, even feel. It's not an active skincare ingredient—it's a helper that improves how a product performs.

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

When applied, the polymer's molecules link together as the solvent (usually water) evaporates, forming a continuous film. This film physically locks pigments and active ingredients in place, resists water and sweat, and creates a smooth, uniform surface.

Is AMP-Acrylates Copolymer safe for most people?

Considered safe for topical use at typical concentrations. Low irritation and comedogenic risk. No known toxicity or systemic absorption concerns.

Who should be careful with AMP-Acrylates Copolymer?

Those with very dry or dehydrated skin may find high-concentration formulas slightly tightening

Research sources

Cosmetic Ingredient Review (CIR) - Safety Assessment of Acrylates CopolymersOpenEuropean Chemicals Agency (ECHA) - AMP-Acrylates 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.