Researched by Helena DeMaria-Williams
Formula IngredientAbsorbent/MattifierSilica
INCI: Silica
Silica (silicon dioxide) is a naturally occurring mineral that is the major component of sand and glass. In cosmetics, it is used in finely powdered or microsphere form as an oil-absorbing, mattifying agent that keeps skin looking shine-free. It also functions as a viscosity controller, bulking agent, and abrasive (in scrubs), and can help suspend insoluble particles in formulations.
Category
Absorbent/Mattifier
Irritation Risk
Low
Skin Types
oily, combination, normal, acne-prone
What does this do in a formula?
oil absorption, mattifying, thickening, texture enhancement, bulking, soft-focus effect, suspending agent
Is Silica safe? Key considerations
Can Silica cause irritation?
Low RiskCosmetic-grade amorphous silica is well tolerated on the skin. It is chemically inert and does not penetrate the skin barrier. The CIR Expert Panel has reviewed silica and silicates and concluded they are safe as used in cosmetics. No EU CosIng Annex II or III restrictions apply. Note: crystalline silica (quartz) is a respiratory hazard when inhaled, but cosmetic formulations use amorphous silica which does not carry the same risk.
Does Silica increase sun sensitivity?
No RiskSilica does not increase photosensitivity. No sun protection precautions are required.
Is Silica safe during pregnancy?
SafeAmorphous silica is chemically inert with no systemic absorption from topical use. No reproductive or developmental concerns are documented.
How does Silica work?
Silica (silicon dioxide) is a naturally occurring mineral that is the major component of sand and glass. In cosmetics, it is used in finely powdered or microsphere form as an oil-absorbing, mattifying agent that keeps skin looking shine-free. It also functions as a viscosity controller, bulking agent, and abrasive (in scrubs), and can help suspend insoluble particles in formulations.
Individuals with very dry skin (may find mattifying effect uncomfortable) should review the considerations above before use.
Which products contain Silica?
Shop products that contain Silica
Oat Cleansing Balm
Brighten-i Eye Cream
Gentle Clear Triple Action Blemish Serum
Sulfur 10% Powder-to-Cream Concentrate
Vitamin C Suspension 23% + HA Spheres 2%
