Acrylates/T-Butylacrylamide Copolymer

What is Acrylates/T-Butylacrylamide Copolymer?

Acrylates/T-Butylacrylamide Copolymer is a synthetic polymer derived from the polymerization of acrylate monomers and t-butylacrylamide. It appears as a clear to slightly hazy viscous liquid in formulations. Primarily found in hair styling sprays, gels, mousses, and certain makeup items like mascaras or sunscreens, it works by depositing a thin, flexible polymeric film on hair shafts or skin surfaces. This film provides structure, resists humidity, and improves product adhesion without excessive rigidity. In hair products, it helps maintain styles by bridging hair fibers; in cosmetics, it boosts water resistance and longevity. Its binding properties also contribute to product stability, ensuring even distribution and integrity during use. Overall, it enables formulations that deliver reliable performance in dynamic conditions.

Comedogenic Rating 0/5 Low risk of clogging pores

EWG Safety Rating 1 View on EWG →

Roles in Formulation

This ingredient serves the following purposes in cosmetic formulations:

Binder

Helps hold solid ingredients together to form cohesive tablets, compacts, or sticks, improving pressability, integrity, and wear of the finished product.

Film former

Creates a continuous film on skin or hair to improve wear, water resistance, transfer resistance, shine, or hold in sunscreens, makeup, and styling products.

Hair fixative

Provides style hold by forming a film on hair, helping maintain shape, reduce frizz, and improve durability in sprays, gels, and mousses.

Hair fixing

Improves style retention by depositing film-forming polymers that hold hair in place while balancing stiffness, flexibility, and humidity resistance.

Benefits

Supports long-lasting hair styles by forming a flexible hold that combats humidity and movement.

Enhances makeup and sunscreen wear through a protective film that resists transfer and water.

Improves product texture and cohesion as a binder for better application and stability.

Who It's For

A quick guide for who this ingredient may suit (and who should be cautious).

Who May Benefit	Who Should Avoid
Individuals seeking durable hair styling in humid environments.	Those with rare sensitivities to acrylate-based polymers.
Users wanting extended makeup or sunscreen adherence during daily activities.	Individuals preferring fully natural or plant-derived ingredients.
People with hair prone to frizz needing lightweight fixation.	Users experiencing contact dermatitis from similar synthetic film-formers.

Safety Notes

Evaluated as safe for cosmetic use by expert panels like CIR for acrylates copolymers.
Low potential for comedogenicity and generally well-tolerated on skin and hair.

Frequently Asked Questions about Acrylates/T-Butylacrylamide Copolymer

What products commonly contain Acrylates/T-Butylacrylamide Copolymer?

Typically found in hair sprays, gels, mousses, mascaras, and some sunscreens for film-forming effects.

Is it suitable for daily use in hair styling?

Yes, it provides flexible hold suitable for regular styling without compromising hair manageability.

Does it clog pores?

Rated non-comedogenic, making it unlikely to contribute to pore blockages.