Wollastonite

INCI: WOLLASTONITE

CAS Number
13983-17-0
Function
Bulking agent, opacifying agent, absorbent (calcium silicate mineral)
Safety Rating
GOOD

Regulatory Status

๐Ÿ‡ช๐Ÿ‡บ EU Status permitted
๐Ÿ‡บ๐Ÿ‡ธ US Status permitted
US Notes Permitted; listed in FDA's Voluntary Cosmetic Registration Program databases; no specific restrictions

For full compliance data across 55 jurisdictions, use the Substance Compliance tool.

Safety Data

Margin of Safety (MoS)
not established
Dermal Absorption
negligible
Sensitization
none

Calculate MoS for your specific formulation with the MoS Calculator.

Expert Verdict

Inhalation hazard is the primary concern โ€” natural wollastonite fibers are classified as nuisance dust but some forms may contain trace asbestos-like fibers depending on geological origin. IARC Group 3 (not classifiable as carcinogenic to humans). Ensure supplier CoA confirms absence of regulated fibrous contaminants. Not suitable for spray/powder products without inhalation risk assessment .

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Concern Level: Moderate

Regulatory Flags

natural-origin

Frequently Asked Questions

Is Wollastonite safe in cosmetics?

Inhalation hazard is the primary concern โ€” natural wollastonite fibers are classified as nuisance dust but some forms may contain trace asbestos-like fibers depending on geological origin. IARC Group 3 (not classifiable as carcinogenic to humans). Ensure supplier CoA confirms absence of regulated fibrous contaminants. Not suitable for spray/powder products without inhalation risk assessment . The EU classifies Wollastonite as "permitted". Safety rating: GOOD.

Is Wollastonite allowed in the EU?

Wollastonite EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.

What does Wollastonite do in cosmetics?

Wollastonite functions as: Bulking agent, opacifying agent, absorbent (calcium silicate mineral). It is classified as a cosmetic ingredient in our database. CAS number: 13983-17-0.

What is the Margin of Safety for Wollastonite?

not established The Margin of Safety (MoS) is calculated using SCCS methodology. A MoS above 100 is generally considered safe. Use the MoS Calculator tool to calculate MoS for your specific formulation and product category.

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