Emollient
QUATERNIUM-98
Safety score · 0–100
Fine
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
About
A conditioning polymer for hair and skin — provides lasting softness through its positive charge that bonds to surfaces. Based on lauryl and ethoxylated amines.
Quaternium-98 is a complex quaternary ammonium salt prepared by reacting a 23-mol ethoxylate of lauryl propylenediamine with lauric acid, followed by quaternization with dimethyl sulfate. It functions as a skin emollient, hair conditioner, and skin conditioner. The cationic charge enables substantive binding to negatively charged hair and skin surfaces. No GHS hazards or EU restrictions apply. Quaternary ammonium compounds are widely used in conditioning products with established safety profiles.
Function
Skin benefits
- Long-lasting hair and skin conditioning
- Emollient softening
- Substantive binding for lasting effects
- Anti-static properties
Known concerns
- Quaternized with dimethyl sulfate (a toxic alkylating agent) — residual levels must be controlled
- Limited specific safety data for this quaternium variant
References
EU CosIng database
European Commission cosmetic ingredient registry — regulatory status, restrictions, authorised functions.
Related emollients
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This profile is for educational purposes and does not constitute medical advice. Regulatory status and scientific understanding evolve — always read the physical product label and consult a healthcare professional for personal concerns.