Is Silica (Silicon Dioxide) Safe? What You Need to Know
Safety Score
Concern Level: low
Silica (Silicon Dioxide) is generally considered safe for use in household and personal care products.
What Is Silica (Silicon Dioxide)?
A mineral used as a thickener, anti-caking agent, and mattifier. Safe on skin but should not be inhaled.
Commonly found in: face powder, toothpaste, deodorant, foundation
Safety Research & Evidence
A mineral used as a thickener, anti-caking agent, and mattifier. Safe on skin but should not be inhaled.
Regulatory status: GRAS by FDA; CIR safe in cosmetics; OSHA limits for workplace inhalation
Health Concerns
inhalation risk in fine powder form
Evidence: ModerateResearch indicates inhalation risk in fine powder form may be associated with exposure to Silica (Silicon Dioxide). Particularly concerning for workers exposed to silica dust.
Vulnerable Populations
Extra caution recommended for: workers exposed to silica dust
Safer Alternatives
| Alternative | Safety Score |
|---|---|
| Cornstarch | 9/10 |
How to Avoid Silica (Silicon Dioxide)
- Read ingredient labels carefully for "Silica (Silicon Dioxide)" or its chemical synonyms
- Choose products with third-party certifications (EWG Verified, Made Safe)
- Consider alternatives like Cornstarch
- Check the EWG Skin Deep database for product ratings
- Look for "Silica (Silicon Dioxide)-free" labels on product packaging
Frequently Asked Questions
Is Silica (Silicon Dioxide) safe for babies?
Silica (Silicon Dioxide) is generally considered acceptable for use around babies at typical concentrations in consumer products.
What are the safest alternatives to Silica (Silicon Dioxide)?
Safer alternatives include Cornstarch (safety score: 9/10).
Is Silica (Silicon Dioxide) banned in other countries?
Regulatory status: GRAS by FDA; CIR safe in cosmetics; OSHA limits for workplace inhalation
How do I know if my product contains Silica (Silicon Dioxide)?
Check the full ingredient list on the product label. Silica (Silicon Dioxide) may also appear under different chemical names. Using apps like EWG Healthy Living or Think Dirty can help identify it.
Related Safety Guides
References
- Fruijtier-Polloth C (2012). Amorphous silica safety in cosmetics PMID: 26225785