Ictasol

INCI: ICTASOL

CAS Number
12542-33-5 (also referenced as 1340-06-3) [^1_19]
Function
Anti-seborrheic, antimicrobial (sodium bituminosulfonate, pale sulfonated shale oil)
Safety Rating
GOOD

Regulatory Status

๐Ÿ‡ช๐Ÿ‡บ EU Status prohibited
๐Ÿ‡บ๐Ÿ‡ธ US Status permitted
US Notes Permitted โ€” no specific FDA restriction for cosmetic use

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

Safety Data

Margin of Safety (MoS)
adequate
Dermal Absorption
low
Sensitization
low

Calculate MoS for your specific formulation with the MoS Calculator.

Expert Verdict

Purified pale form of sulfonated shale oil with higher purity than ichthammol; no carcinogenic, teratogenic, or mutagenic properties identified; GMP-controlled manufacture; lighter colour than ichthammol but may tint formulations; anti-dandruff claims may trigger medicinal product assessment in some EU member states

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Concern Level: Moderate

Frequently Asked Questions

Is Ictasol safe in cosmetics?

Purified pale form of sulfonated shale oil with higher purity than ichthammol; no carcinogenic, teratogenic, or mutagenic properties identified; GMP-controlled manufacture; lighter colour than ichthammol but may tint formulations; anti-dandruff claims may trigger medicinal product assessment in some EU member states The EU classifies Ictasol as "prohibited". Safety rating: GOOD.

Is Ictasol allowed in the EU?

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

What does Ictasol do in cosmetics?

Ictasol functions as: Anti-seborrheic, antimicrobial (sodium bituminosulfonate, pale sulfonated shale oil). It is classified as a cosmetic ingredient in our database. CAS number: 12542-33-5 (also referenced as 1340-06-3) [^1_19].

What is the Margin of Safety for Ictasol?

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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