Ingredient dictionary

Methyl Methacrylate Crosspolymer

A lightweight synthetic polymer, built from methyl methacrylate units, that forms tiny particles in a formula. Its main job is to give a soft, smooth, matte feel. It is on the label of 8 products in our library. Checked against our library November 6, 2026.

What Methyl Methacrylate Crosspolymer does

Gives a soft, smooth, matte finish
Helps reduce the look of shine
Helps the formula spread evenly

Methyl methacrylate crosspolymer is made by joining many methyl methacrylate molecules into a cross-linked network. The result is a fine, lightweight powder of tiny particles that do not dissolve in the formula. Because the particles are stable and light, they suit creams, gels and lotions alike.

Formulators use it to give a soft, dry-touch finish and to help reduce shine. You will often see it in acne treatments and sunscreens, where a light, matte feel helps. It spreads smoothly and feels barely there, and it can help other ingredients stay evenly mixed through the product.

Good for

Suits people who want a matte, non-greasy finish, especially oily or combination skin, and it is common in acne and sunscreen products.

Frequently asked questions

Is methyl methacrylate crosspolymer safe for sensitive skin?

Most people tolerate it well. Because its particles are too large to soak into the skin, they mostly sit on the surface. If your skin is reactive, patch test any new product first and check with a dermatologist if unsure.

Does methyl methacrylate crosspolymer clog pores?

Whether a product clogs pores depends on the whole formula, not on one ingredient. This polymer is used for light, matte finishes, which tend to feel less heavy than rich creams. If you break out easily, look at the full ingredient list and try one product at a time.