Science
Mechanism of Action
This ingredient is the lactate salt of Stearamidopropyl Dimethylamine, acquiring its beneficial cationic charge when formulated within an acidic pH range of 4.0 to 5.0. This positive charge enables it to bind to negatively charged surfaces, such as hair, creating a protective layer that improves smoothness, detangling, and static reduction. In skin applications, its emulsifying properties stabilize oil-in-water systems, contributing to a refined and improved skin feel.
Research
Clinical Evidence
Low confidenceN/A
Transparency
Dusting Analysis
The Formula
Formulation
Stability
Exhibiting solubility in both water and oil, this ingredient is most effective within an optimal pH range of 4.0 to 5.0. Maintaining this acidic pH is crucial for its cationic activity and to prevent potential odor development, which can occur if the final formulation's pH exceeds 6.
Safety
Safety Profile
The Cosmetic Ingredient Review (CIR) Expert Panel concluded the safety of Stearamidopropyl Dimethylamine (the base amine) in 2014, deeming it safe for use in cosmetics subject to concentration or use limitations up to 5%. EWG indicates low concerns for cancer, allergies & immunotoxicity, and developmental and reproductive toxicity.
Your Skin
Skin Compatibility
Our Assessment
Verdict
This versatile ingredient provides effective emulsification and enhances skin feel, making it a valuable addition to skincare formulations, particularly when stabilized within its optimal acidic pH range.
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