Allyl Stearate/Va Copolymer

What is Allyl Stearate/Va Copolymer?

Allyl Stearate/VA Copolymer is a synthetic polymer created by combining allyl stearate, an ester from stearic acid and allyl alcohol, with vinyl acetate. It appears in hair care items like sprays and gels, as well as makeup such as mascaras and sunscreens. This ingredient functions by spreading evenly and drying to create a sheer, elastic layer on hair or skin. The film locks in styles against humidity, boosts product staying power, cuts down on smudging or rinsing off, and adds a subtle sheen without rigidity. Its design allows for breathability, suiting daily use in styling and cosmetic formulas where durability matters.

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:

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

Delivers flexible hold in hair products to combat frizz and maintain shapes.

Builds water-resistant barriers in makeup and sunscreens for longer wear.

Enhances product adhesion and shine on hair and skin surfaces.

Who It's For

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

Who May Benefit Who Should Avoid
People styling hair in moist environments for reliable hold.
Those with rare sensitivities to acrylic or vinyl polymers.
Users wanting smudge-proof makeup application.
People avoiding synthetic film-formers in routines.
Individuals seeking transfer-resistant finishes in styling aids.
Users preferring products free of copolymers.

Safety Notes

  • Considered low hazard overall with no notable concerns in cosmetics.
  • Non-comedogenic, unlikely to block pores.

Frequently Asked Questions about Allyl Stearate/Va Copolymer

What does Allyl Stearate/VA Copolymer do in products?

It forms thin films for style hold, water resistance, and wear in hair and makeup.

Is it suitable for acne-prone skin?

Yes, with a comedogenic rating of 0, it does not promote pore clogging.

How common are reactions to it?

Rare, as it carries low irritation risk in standard uses.