ICHTHAMMOL
Other
Moderate
CAS Number: 8029-68-3
About ICHTHAMMOL
A dark, sulfur-rich tar derived from bituminous schists used in anti-dandruff and eczema skincare, though it carries sensitisation risks and may be restricted in some EU leave-on applications.
Detailed Analysis
Ichthammol is obtained by sulfonation and ammoniation of bituminous shale distillates, producing a complex mixture of sulfonated hydrocarbons, nitrogen bases, and thiophene derivatives. Historically used in topical preparations for eczema and acne due to its anti-inflammatory and antimicrobial properties. In the EU, coal tar-derived ingredients face increasing scrutiny; ichthammol is not listed in Annexes II or III but requires purity monitoring for polyaromatic hydrocarbons.
Skin Benefits
- ✓ Anti-inflammatory properties benefit eczema and acne-prone skin
- ✓ Mild antimicrobial action helps reduce microbial overgrowth on skin
Known Concerns
- ⚠ Known skin sensitiser in some individuals
- ⚠ Coal tar origin raises polyaromatic hydrocarbon concerns
- ⚠ May be restricted in leave-on facial products in some EU member states
Safety Score
Moderate
Based on EU regulatory data, published safety research, and ingredient function analysis.
References
EU CosIng Database
European Commission cosmetic ingredient registry
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Download LuxSenseThis information is for educational purposes only and does not constitute medical advice. Always consult a healthcare professional for skin concerns or allergies.