Science
Mechanism of Action
As a tertiary amine, Dimethyl Stearamine effectively reduces interfacial tension between immiscible liquids, thereby stabilizing emulsions of oil and water. It coats surfaces, including skin, to impart a smoother feel and improved texture. Additionally, this ingredient may contribute antibacterial effects to the formulation.
Research
Clinical Evidence
Low confidenceN/A
Transparency
Dusting Analysis
Dimethyl Stearamine is primarily a functional ingredient (emulsifier, conditioner) rather than an active ingredient with specific dusting concerns for efficacy.
The Formula
Formulation
Stability
When neutralized or quaternized, Dimethyl Stearamine forms highly effective conditioning agents, enhancing its performance and stability in formulations.
Conflicts
- Nitrosating systems
- Nitrite-containing containers
Safety
Safety Profile
The CIR Expert Panel confirmed Dimethyl Stearamine's safety in non-coloring hair care products as currently used (2009). In the EU, a maximum concentration of 2.5% is authorized for non-rinse-off products, with no limit for rinse-off products. Strict purity guidelines mandate a minimum 99% purity, a maximum 0.5% secondary amine content, and a maximum 50 microg/kg nitrosamine content. Products must be stored in nitrite-free containers to prevent adverse reactions.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Dimethyl Stearamine is a valuable formulating agent due to its effective emulsifying properties and conditioning benefits, though its medium comedogenicity should be considered for specific skin types.
Related
Similar Ingredients
Finding similar ingredients…
References
Sources