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ISOSTEARAMIDOPROPYL DIMETHYLAMINE LACTATE.

Valuable CAS 55852-15-8 / ANTISTATIC

Isostearamidopropyl Dimethylamine Lactate is a cationic emollient surfactant that enhances product feel and stability. It primarily functions as a conditioning and antistatic agent, also contributing thickening and emulsifying properties to formulations.

Antistatic Hair Conditioning Emollient Thickening Emulsifying

Science

This ingredient becomes positively charged when acidified, typically with lactic acid, allowing it to neutralize static electricity. In formulations, it forms a protective layer, which on hair imparts smoothness, flexibility, and shine. For skin, its emollient properties likely contribute to a softer feel and improved moisture retention, while also acting as an emulsifier and thickener to refine product texture.


Research

Medium confidence
Effective range 1–5%
Optimal

N/A


Transparency

Not commonly dusted

The Formula

Solubility
Both
Optimal pH 4 – 5
0 7 14

Stability

Optimal cationic conditioning performance is achieved at lower pH levels, typically between 4.0 and 5.0, as acidification enhances its positive charge. Formulations should ideally maintain a pH within this range to prevent potential odor development, which may occur if the final pH exceeds 6.


Safety

CIR Status
Safe with restrictions
Max tested
5%
Sensitization risk Low

The CIR Expert Panel deems the broader class of fatty acid amidopropyl dimethylamines, to which this ingredient belongs, safe for cosmetic use when formulated to be non-sensitizing. Although raw material concentrations (25-50%) are classified as skin and serious eye irritants, finished cosmetic products typically contain much lower levels (1-5%), where irritancy is expected to be low. EWG rates this ingredient with low concerns for cancer, allergies, immunotoxicity, developmental and reproductive toxicity, and use restrictions.


Your Skin

No Normal
No Dry
No Oily
No Sensitive
Irritancy Low
Comedogenicity Low

Our Assessment

Valuable

Isostearamidopropyl Dimethylamine Lactate is a valuable conditioning and antistatic agent, offering emollient benefits and improved formulation texture with a low risk of irritation or comedogenicity.


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