Ingredient review

AMPD-Acrylates Copolymer

INCI: AMPD-ACRYLATES/DIACETONEACRYLAMIDE COPOLYMER

A synthetic film-former that helps products stay put, but it can feel tight or dry on some skin types.

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In plain English

This is a synthetic polymer that creates a thin, flexible film on your skin or hair. Think of it like an invisible, breathable shield that helps your makeup last longer, your sunscreen stay water-resistant, or your hairstyle hold its shape. It's a common ingredient in long-wear and waterproof formulas.

Quick decision guide

Useful, but context matters

AMPD-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 AMPD-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 high-molecular-weight synthetic polymer created by copolymerizing AMPD-acrylates with diacetoneacrylamide. It forms a clear, flexible film when applied and dried.

How it works

When the water or solvent in a product evaporates, the polymer molecules link together to form a continuous, flexible film on the skin or hair. This film physically locks in pigments and other ingredients, improving wear time and water resistance. It also slightly thickens the product's texture.

Pros

Boosts wear time

Creates a flexible film that helps makeup and sunscreen stay in place for hours, even in humidity or water.

Improves water resistance

Forms a barrier that repels water, making it a key ingredient in waterproof sunscreens and long-wear foundations.

Cons and cautions

Can feel drying

The film can leave skin feeling tight or dry, especially if you already have dry or dehydrated skin.

Requires double cleansing

Because it forms a durable film, it may not rinse off with a gentle cleanser alone; an oil-based cleanser is often needed.

Best for

  • People who want long-wearing, waterproof makeup or sunscreen
  • Those with normal to oily skin looking for a matte finish

Use caution if

  • Individuals with very dry or dehydrated skin who dislike a tight feeling

Usage tips

Use an oil-based cleanser or micellar water to thoroughly remove products containing this polymer.
Layer a hydrating serum or moisturizer underneath to prevent any tight feeling.
Avoid applying too many film-forming layers at once to prevent pilling.

Safety summary

Considered safe for topical use in cosmetics. Low irritation and comedogenic potential. Some individuals may experience a tight or dry sensation.

Research notes

Safety assessments by cosmetic ingredient review panels have concluded that acrylates copolymers are safe when formulated appropriately. Specific studies on this exact copolymer are limited, but the class is well-established.

Common label clues

Typical concentration
1% to 10%
Regulatory status
Approved for use in cosmetics in the US, EU, and other major markets. No known restrictions at typical usage levels.
Common uses
Sunscreens, Waterproof makeup, Hair styling products, Long-wear foundations
Environmental note
As a synthetic polymer, it is not biodegradable. However, it is used in small amounts and is not known to bioaccumulate.

Good to know

  • This polymer is often used in combination with other film-formers to fine-tune flexibility and feel.
  • It is considered safe for use in cosmetics by major regulatory bodies at typical concentrations.

Common questions

What is AMPD-Acrylates Copolymer in beauty products?

This is a synthetic polymer that creates a thin, flexible film on your skin or hair. Think of it like an invisible, breathable shield that helps your makeup last longer, your sunscreen stay water-resistant, or your hairstyle hold its shape. It's a common ingredient in long-wear and waterproof formulas.

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

When the water or solvent in a product evaporates, the polymer molecules link together to form a continuous, flexible film on the skin or hair. This film physically locks in pigments and other ingredients, improving wear time and water resistance. It also slightly thickens the product's texture.

Is AMPD-Acrylates Copolymer safe for most people?

Considered safe for topical use in cosmetics. Low irritation and comedogenic potential. Some individuals may experience a tight or dry sensation.

Who should be careful with AMPD-Acrylates Copolymer?

Individuals with very dry or dehydrated skin who dislike a tight feeling

Research sources

Cosmetic Ingredient Review (CIR) - Acrylates Copolymers SafetyOpenEuropean Chemicals Agency (ECHA) - AMPD-Acrylates/Diacetoneacrylamide CopolymerOpenPersonal Care Council - Ingredient DatabaseOpen

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.