Steareth-10 Allyl Ether/Acrylates Copolymer

What is Steareth-10 Allyl Ether/Acrylates Copolymer?

Steareth-10 Allyl Ether/Acrylates Copolymer is a synthetic polymer created by copolymerizing steareth-10 allyl ether, a derivative of stearic acid ethoxylated with 10 moles of ethylene oxide, with acrylate monomers like acrylic acid or esters. Commonly found in hair styling products, sunscreens, and makeup formulations, it serves primarily in personal care items needing durability and consistency. In products, it functions by forming a flexible, continuous film on skin or hair, which boosts water resistance, hold, and transfer resistance while preventing ingredient separation. Simultaneously, it modifies the product's thickness, ensuring smooth application, even distribution of actives, and overall formula stability without altering sensory feel significantly.

Comedogenic Rating 0/5 Low risk of clogging pores
EWG Safety Rating 2 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.
Viscosity controlling agent
Adjusts thickness to the desired level for stability and usability, improving dispensing, suspension, and texture across many formulation types.

Benefits

Enhances product longevity and resistance to water or rubbing in sunscreens and makeup.

Improves formulation thickness for better spreadability and suspension of particles.

Provides a smooth, stable texture that supports user-friendly application.

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 using long-wear cosmetics or sunscreens for all-day performance.
Those with known sensitivities to acrylate-based polymers.
People with diverse skin types preferring non-comedogenic thickeners.
People experiencing reactions to ethoxylated ingredients.
Users of hair styling products seeking reliable hold and manageability.
Individuals preferring entirely natural or minimalist formulations.

Safety Notes

  • Rated low hazard overall with no significant concerns for typical use.
  • Non-comedogenic, unlikely to clog pores or cause breakouts.

Frequently Asked Questions about Steareth-10 Allyl Ether/Acrylates Copolymer

What does this ingredient do in products?

It forms protective films for durability and adjusts thickness for stability and smooth use.

Is it safe for daily skincare use?

Yes, it carries a low hazard rating and shows no major safety issues in cosmetics.

Does it clog pores?

No, it has a comedogenic rating of zero, suitable for acne-prone skin.