Biotite

INCI: BIOTITE

CAS Number
1302-27-8 (biotite mica)
Function
Bulking (reduces density of products), viscosity controlling
Safety Rating
MODERATE

Regulatory Status

🇪🇺 EU Status permitted
🇺🇸 US Status permitted
US Notes Allowed - micas are generally recognized for cosmetic use; 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
low
Sensitization
low

Calculate MoS for your specific formulation with the MoS Calculator.

Expert Verdict

As a mineral (mica group), primary concerns relate to potential heavy metal contamination (trace amounts of iron, aluminum) and respirable dust during manufacturing; finished cosmetic use is considered safe. Black magnesium/iron-based mica mineral; chemical formula K(Mg,Fe)₃AlSi₃O₁₀(OH)₂; forms thin, highly translucent sheets; insoluble in water; provides golden-brown luster when pulverized

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Concern Level: Moderate

Frequently Asked Questions

Is Biotite safe in cosmetics?

As a mineral (mica group), primary concerns relate to potential heavy metal contamination (trace amounts of iron, aluminum) and respirable dust during manufacturing; finished cosmetic use is considered safe. Black magnesium/iron-based mica mineral; chemical formula K(Mg,Fe)₃AlSi₃O₁₀(OH)₂; forms thin, highly translucent sheets; insoluble in water; provides golden-brown luster when pulverized The EU classifies Biotite as "permitted". Safety rating: MODERATE.

Is Biotite allowed in the EU?

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

What does Biotite do in cosmetics?

Biotite functions as: Bulking (reduces density of products), viscosity controlling. It is classified as a cosmetic ingredient in our database. CAS number: 1302-27-8 (biotite mica).

What is the Margin of Safety for Biotite?

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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