C10-40 ISOALKYL ACID
Emollient
Moderate
About C10-40 ISOALKYL ACID
A mixture of branched-chain fatty acids derived from lanolin, these C10-40 isoalkyl acids are used as skin conditioning emollients but may contain trace lanolin allergens that could affect individuals with lanolin sensitivity.
Detailed Analysis
C10-40 Isoalkyl Acid is derived from lanolin (wool wax) and consists of branched, saturated fatty acids in the C10-C40 range. While lanolin itself is a well-known allergen and is listed in EU Annex III as a restricted substance for certain applications, the isolated fatty acid fraction is considered to have reduced allergenic potential. The 'ban substances that deplete the ozone layer' CosIng entry appears to be a database classification artifact. As a high molecular weight fatty acid mixture, systemic absorption is minimal. Individuals with known lanolin allergy should exercise caution.
What It Does
Skin Benefits
- ✓ Provides emollient skin conditioning properties
- ✓ Helps restore and maintain skin barrier function
- ✓ Conditions and softens skin
Known Concerns
- ⚠ Residual lanolin allergens may affect lanolin-sensitised individuals
- ⚠ Natural origin raises potential for batch-to-batch variability in allergen content
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.