Snapshot
- Overview
- A preservative that fights microbes but can irritate sensitive skin.
- Category
- Skin Conditioning
- Type
- Surfactant
Didecyldimonium Chloride
Didecyldimonium chloride is a quaternary ammonium compound used in personal care formulations. Cosmetics use it as a preservative and antimicrobial to limit contamination, though irritation potential and sensory drawbacks keep its value only fair.
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Our take
Is Didecyldimonium Chloride a Good Ingredient?
Rated Fair: effective as an antimicrobial/preservative, but its cationic surfactant nature raises irritation potential, especially in leave-ons. The benefit-to-sensitivity trade-off limits overall desirability.
What it does
Skin Benefits
Helps keep products fresher by discouraging spoilage from microbes, though it can bother sensitive skin.
Where you'll find it
Uses in Skincare & Cosmetics
Used at low levels in shampoos, hand washes, and some lotions as a preservation aid within the formula.
Before you use it
Safety
Can irritate skin, eyes, and mucosa, particularly on sensitive or compromised skin and around eyes. Typically used at low concentrations; avoid contact with eyes and broken skin. Discontinue use if persistent irritation occurs.
Products with Didecyldimonium Chloride
