Silica

Other Name(s):

Silica Amorphous; Hydrated Silica; Silica, Crystalline Quartz; Silicon Dioxide (SiO2); E 551; CAS# 7631-86-9; CAS# 112945-52-5; CAS# 112926-00-8

Silica is a naturally occuring mineral, making up 59% of the Earth’s crust. It’s most commonly mined from open-pit mines. In developed nations there are extremely strict regulations in place to prevent harmful effects to the environment as a result of these mining operations.

Is Silica Faithful to Nature?

Depends.

Silica is a natural ingredient with very useful applications that can be sourced responsibly from an extremely abundant supply. Amorphous silica is the form of silica which can be safely used in household products.

Benefits: Why is Silica used?

Anti Caking Agent

Silica absorbs water, preventing cosmetic powder and health supplements from caking.

Handy Skincare Ingredient

Silica absorbs oils, providing a matte finish and shine-free complexion, it also removes dirt and impurities from deep within the pores.

Vegan Collagen Booster

Silica may be useful as part of a collagen-building supplement routine.

Important Raw Material

Silica is a primary raw material for the manufacture of silicone rubber and it also constitutes between 60% - 90% of glass, depending on the type of glass.

Learn more about Silica:

On the Shelf: Which Products Use Silica?

Silica is found extensively in makeup powders but enjoys use in some facial masks. It’s also used as an anti-caking agent in powdered food products like coffee creamer and nutritional supplements like protein powder and vitamin E capsules.

Production: How is Silica Made?

Silica is processed in many different ways depending on the desired outcome. However, the amorphous silica commonly used in household products can found in its natural form in diatomaceous earth.

Interesting Fact: Silica

In 2018, the world’s top-three exporters of silica are The United States, Australia, and Belgium. Silica from these countries is subject to very strict regulations, ensuring that only the purest silica is permitted for use in cosmetics.