Is Magnesium Trisilicate safe in cosmetics?
Magnesium Trisilicate has a safety rating of "MODERATE" in our database. EU status: permitted. US status: permitted.
Moderate
Cosmetic Ingredient
Magnesium Trisilicate
Also known as: Magnesium silicon oxide (Mg2Si3O8), Magnesium silicate (Mg2Si3O8), Silicic acid (H4Si3O8), magnesium salt (1:2), Dicarbocalm, Kyowaad 630 (+6 more)
INCI: MAGNESIUM TRISILICATE
Magnesium Trisilicate (CAS 14987-04-3) is a cosmetic cosmetic ingredient functioning as Absorbent, anticaking, bulking, opacifying (cosmetic); also used. 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 14987-04-3 →
Auto-generated CPSR Part A draft with source citations
Function
Absorbent, anticaking, bulking, opacifying (cosmetic); also used pharmaceutically as an antacid
Safety Rating
MODERATE
Chemistry & Identifiers
IUPAC Name
dimagnesium;dioxido-bis[[oxido(oxo)silyl]oxy]silane
InChIKey
GXGAKHNRMVGRPK-UHFFFAOYSA-N
Regulatory Status
EU EU Status
permitted
US US Status
permitted
US Notes
Allowed - also recognized as GRAS (Generally Recognized as Safe) for food/pharmaceutical use; permitted in cosmetics without specific restrictions
For full compliance data across multiple jurisdictions, use the Substance Compliance tool.
Safety Data
Margin of Safety, dermal absorption, and sensitization profile summaries for Magnesium Trisilicate.
Calculate MoS for your specific formulation with the MoS Calculator.
Additional Ingredient Properties
1 property record from structured ingredient metadata.
mineral_clay
{"cas_number": "14987-04-3", "ingredient_class": "magnesium_compound", "chemical_formula": "Mg2Si3O8·5H2O", "mineral_origin": "synthetic", "particle_size_range_um": "1-20", "surface_area_m2_per_g": "10-50", "crystal_structure": "amorphous", "color_appearance": "white", "opacity": "opaque", "refractive_index": "1.54", "oil_absorption_g_per_100g": "80-200", "water_absorption_capacity": "low", "surfa…
PubChem Annotations
Safety and regulatory annotations from PubChem (NCBI) aggregated sources.
Safety (1)
Evidence for Carcinogenicity
Evaluation: There is inadequate evidence in humans for the carcinogenicity of wollastonite. There is inadequate evidence in experimental animals for the carcinogenicity of wollastonite. Overall evaluation: Wollastonite cannot be classified as to its carcinogenicity to humans (Group 3).
Source: Hazardous Substances Data Bank (HSDB)
Regulatory (1)
EU Food Improvement
Food additives
Source: EU Food Improvement Agents
Function Categories & List Membership
Cosmetic/Chemical Function Categories
Abrasive
Absorbent
Anti-adhesive/cohesive
Anti-caking agent
Filler
Opacifer
Thickening agent
Viscosity modifier
Expert Verdict
Expert safety assessment and concern-level summary for Magnesium Trisilicate.
Known Synonyms
Magnesium silicon oxide (Mg2Si3O8)
Magnesium silicate (Mg2Si3O8)
Silicic acid (H4Si3O8), magnesium salt (1:2)
Dicarbocalm
Kyowaad 630
Magnesium mesotrisilicate
Magnosil
Silimag
Trisilicalm
Magnesium silicon oxide
dimagnesium trisilicon octaoxide
Chemical Function
Abrasive
Absorbent
Viscosity modifier
Opacifer
Filler
Anti-caking agent
Anti-adhesive/cohesive
Thickening agent
Regulatory Lists
inert_ingredient; Pesticides
inert_ingredient; non_food_use; Pesticides
inert_ingredient; non_food_use; Pesticides
active_ingredient; animal_products; Europe; pharmaceutical; residue
Canada; pharmaceutical
Australian Status
AICIS status: listed
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
MAGNESIUM TRISILICATE
ChEMBL ID
CHEMBL2096633
Max Phase
4
Adverse Event Associations
31
Frequently Asked Questions
Is Magnesium Trisilicate allowed in the EU?
Magnesium Trisilicate EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.
What does Magnesium Trisilicate do in cosmetics?
Magnesium Trisilicate functions as: Absorbent, anticaking, bulking, opacifying (cosmetic); also used pharmaceutically as an antacid. It is classified as a cosmetic ingredient in our database. CAS number: 14987-04-3.
Is Magnesium Trisilicate used outside cosmetics?
Magnesium Trisilicate also appears in pharmaceutical data. The cross-vertical cards on this page render same-CAS public rows from the matched databases.
Compliance Tools
Check Magnesium Trisilicate compliance across multiple jurisdictions:
Ingredient Decoder
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82 Allergen Checker
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Substance Compliance
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MoS Calculator
Calculate Margin of Safety using SCCS methodology
Heavy Metal Limits
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