Silica - Glossar

Silica – Glossary

Brief Definition

Silica is a mineral ingredient used in cosmetics as a filler, matting agent, and texturizer. Silica improves the feel of products and provides a smooth, even finish.

What is Silica?

Silica is the INCI name for silicon dioxide, also known as silicic acid or quartz. In cosmetics, silica serves as a functional ingredient that absorbs excess oil, optimizes the texture of formulations, and supports a matte skin appearance. Silica is particularly used in powders, foundations, eyeshadows, and primers to optically smooth the skin and extend the longevity of makeup.

As a mineral raw material, silica has oil-absorbing, texturizing, and stabilizing properties. It improves the spreadability of pigments and provides a soft skin feel. In hair care products, silica can also support volume and grip. The ingredient is considered well-tolerated and is approved for cosmetic applications in the EU. Depending on particle size, a distinction is made between amorphous silica and crystalline silicon dioxide, with amorphous forms predominantly used in cosmetics.

Frequently Asked Questions (FAQ)

What does silica do in makeup?

Silica absorbs excess oil and provides a matte, even finish.

Is silica harmful to the skin?

Amorphous silica is considered safe and well-tolerated in cosmetic products.

Why is silica included in powder?

Silica improves texture, increases longevity, and reduces skin shine.

What is the difference between silica and silicones?

Silica is a mineral silicon dioxide, while silicones are synthetic polymers.

Is silica also used in natural cosmetics?

Yes, silica is often used as a mineral raw material in natural cosmetics.