Silicon Dioxide

E551Anti-caking AgentLow concern78/100

Science-based ingredient analysis · Updated continuously

Used to prevent clumping; nanoform is under scientific review. Blume's full ingredient database includes category, typical usage, safety score, and common products where this appears.

Found in

Products containing Silicon Dioxide

Common questions

Silicon Dioxide — quick answers

Is Silicon Dioxide safe to eat?

Silicon Dioxide carries a Blume safety score of 78/100 (low concern). Used to prevent clumping; nanoform is under scientific review. Always read the full label, and check our app for personalised guidance based on your dietary preferences and allergies.

What is Silicon Dioxide?

Silicon Dioxide is a anti-caking agent food ingredient (identifier: E551) commonly found on packaging in many everyday products. Blume's database tracks where it appears and how each manufacturer uses it.

Which products contain Silicon Dioxide?

Blume covers millions of food and beauty products. Tap the Download button on this page, install the iOS app, then scan any barcode to see whether Silicon Dioxide is in it — and how the product overall scores on health, safety, and dietary fit.

What can I use instead of Silicon Dioxide?

If you're trying to avoid Silicon Dioxide, the Blume app suggests cleaner alternatives in the same category and lets you set a permanent "avoid" filter so future scans flag any product that contains it.

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