Is Silica safe in cosmetics?
Silica has a safety rating of "EXCELLENT" in our database. EU status: permitted. US status: permitted.
Excellent
Cosmetic Ingredient
Silica
INCI: SILICA
Silica (CAS 7631-86-9) is a cosmetic cosmetic ingredient functioning as rheology modifier, thickener, anticaking agent, opacifier. EU Regulation 1223/2009 status: permitted. Industrial safety data is also available in the chemical safety database. Same-CAS public records also appear in pharmaceutical data.
View industrial chemical safety profile for CAS 7631-86-9 →
Auto-generated CPSR Part A draft with source citations
Function
rheology modifier, thickener, anticaking agent, opacifier
Safety Rating
EXCELLENT
Regulatory Status
EU EU Status
permitted
US US Status
permitted
US Notes
FDA-approved inorganic. Widely used. GRAS for food. No concentration restriction in cosmetics.
For full compliance data across multiple jurisdictions, use the Substance Compliance tool.
Safety Data
Margin of Safety, dermal absorption, and sensitization profile summaries for Silica.
Calculate MoS for your specific formulation with the MoS Calculator.
Expert Verdict
Expert safety assessment and concern-level summary for Silica.
Regulatory Flags
mineral-origin
reach-spm-exempt
inorganic
cosmos-certified
hydrophilic
fumed-silica
amorphous
shear-thinning
thixotropic
temperature-independent
thermal-stability
color-cosmetics
nano-label-required-if-nano
aerosil-200
eu_children_restricted
epa_safer_alternative
ifra_fragrance
fda_food_additive
Cross-Vertical Safety Context
Same-CAS public records found in pharmaceutical data.
SOURCE
ChEMBL / DrugCentral / FAERS
DB_PHARMA CAS match
Pharmaceutical Data
Same-CAS rows from the pharmaceutical spoke database.
Compound
silicon dioxide
ChEMBL ID
CHEMBL2108563
Adverse Event Associations
464
Frequently Asked Questions
Is Silica allowed in the EU?
Silica EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.
What does Silica do in cosmetics?
Silica functions as: rheology modifier, thickener, anticaking agent, opacifier. It is classified as a cosmetic ingredient in our database. CAS number: 7631-86-9.
Is Silica used outside cosmetics?
Silica also appears in pharmaceutical data. The cross-vertical cards on this page render same-CAS public rows from the matched databases.
Compliance Tools
Check Silica compliance across multiple jurisdictions:
Ingredient Decoder
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82 Allergen Checker
Check for EU declarable fragrance allergens
Substance Compliance
Check compliance across multiple jurisdictions
MoS Calculator
Calculate Margin of Safety using SCCS methodology
Heavy Metal Limits
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Is Silica in Your Products?
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Paste any INCI list into the Decoder for instant safety analysis, or calculate the Margin of Safety for Silica in your formulation.