Barium Sulfide

INCI: BARIUM SULFIDE

CAS Number
21109-95-5
Function
Depilatory (chemical hair removal)
Safety Rating
MODERATE

Regulatory Status

๐Ÿ‡ช๐Ÿ‡บ EU Status prohibited
๐Ÿ‡บ๐Ÿ‡ธ US Status permitted
US Notes Permitted in cosmetics; no specific FDA monograph restriction beyond general safety requirements

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

Safety Data

Margin of Safety (MoS)
adequate
Dermal Absorption
moderate
Sensitization
high

Calculate MoS for your specific formulation with the MoS Calculator.

Expert Verdict

Prohibited in EU. Mandatory labeling for US products: contains alkali, keep out of reach of children, avoid eye contact, can cause blindness. Corrosive at elevated pH; not for leave-on products.

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Concern Level: High

Frequently Asked Questions

Is Barium Sulfide safe in cosmetics?

Prohibited in EU. Mandatory labeling for US products: contains alkali, keep out of reach of children, avoid eye contact, can cause blindness. Corrosive at elevated pH; not for leave-on products. The EU classifies Barium Sulfide as "prohibited". Safety rating: MODERATE.

Is Barium Sulfide allowed in the EU?

Barium Sulfide EU regulatory status: prohibited. This is based on EU Regulation 1223/2009 and its amendments.

What does Barium Sulfide do in cosmetics?

Barium Sulfide functions as: Depilatory (chemical hair removal). It is classified as a cosmetic ingredient in our database. CAS number: 21109-95-5.

What is the Margin of Safety for Barium Sulfide?

adequate 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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