Ingredient

Polymethylsilsesquioxane

Neutral in 2

What is Polymethylsilsesquioxane?

Polymethylsilsesquioxane is a silicone-based compound often used in cosmetic formulations. It is a synthetic polymer composed of methyl and siloxane groups.

It is commonly used in makeup products to provide a matte finish, enhance spreadability, and improve the feel of the product on the skin. Polymethylsilsesquioxane is generally considered safe for use, though some people may prefer to avoid silicones due to personal beliefs about synthetic ingredients.

When you see polymethylsilsesquioxane on a label, it is typically acting as a film-former or texture enhancer in the product.

Commonly found in: foundations, face powders, sunscreens, skin creams

Benefits

  • Enhances product spreadability and feel.
FDA

Polymethylsilsesquioxane is generally recognized as safe for use in cosmetic applications.

Research

Research indicates it is safe for topical use, but there is limited investigation into long-term effects.

Vegan

Polymethylsilsesquioxane is not derived from animals and is generally considered vegan-friendly.

Sources: Safety Assessment of Polymethylsilsesquioxane

Scout's take

Polymethylsilsesquioxane is a silicone-based ingredient used to improve the texture and spreadability of cosmetic products. It provides a smooth, silky feel and helps in reducing the greasy feel of formulations. It is considered safe for use in cosmetics.

The case against

There is a minimal risk of skin irritation, especially for sensitive skin types.

from the analysis of Supergoop! Unseen Clear & Invisible Face Sunscreen - SPF 50

The case for

It enhances the texture and application of the product.

from the analysis of Supergoop! Unseen Clear & Invisible Face Sunscreen - SPF 50

More from Scout's analyses

Polymethylsilsesquioxane is a silicone used to provide a smooth, silky texture to products. It helps in improving the spreadability and feel of the product on the skin. It is considered safe for use in cosmetics.

from the analysis of Supergoop! Glowscreen Sunrise Hydrating Glowy Tinted Primer Sunscreen with Hyaluronic Acid + Niacinamide - SPF 40

Found in 2 products

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