Hydrated silica is a form of silicon dioxide, a mineral found naturally in quartz and sand. In cosmetics, it functions as an abrasive, helping to polish surfaces like teeth or exfoliate skin. It can also absorb excess oil and provide opacity to formulations.
NoneAbrasive, opacifier, absorbentVeganEvidence: Medium
BenefitMinimal 0.8 / 4
Oil control
Acne
Texture
RiskLow 0.5 / 4
Barrier disruption
Irritation
Eye irritation
Rated by SpottyLabs' ingredient methodology, independent of brands.
What it helps with
gentle exfoliation
oil absorption
polishing agent
Things to watch
potential for over-exfoliation
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Frequently asked questions
Is hydrated silica safe for sensitive skin?
When used in appropriate concentrations and particle sizes, hydrated silica can be gentle. However, excessive scrubbing or high concentrations might cause irritation for sensitive skin types.
What is the difference between silica and hydrated silica?
Hydrated silica is a form of silica (silicon dioxide) that contains water molecules. This hydration affects its physical properties, making it suitable for various cosmetic applications, including as a mild abrasive.
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