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Moumoujus

STEARAMIDE MEA.

Valuable CAS 111-57-9 / ANTISTATIC, SURFACTANT - FOAM BOOSTING, VISCOSITY CONTROLLING

Stearamide MEA is a versatile fatty acid amide that primarily functions to enhance product texture and stability within cosmetic formulations. It acts as an effective emulsifier and thickener, while also imparting a smooth, conditioned feel to the skin and hair.

Summary

Viscosity Controlling Emulsifying Thickening Stabilizing Foam Boosting Antistatic Conditioning

Science

Mechanism of Action

This ingredient functions by increasing the viscosity of a product's aqueous phase, acting as an effective emulsifying, thickening, and stabilizing agent. It also contributes to foam stabilization and provides anti-static properties, ultimately enhancing the skin's conditioned feel by promoting a soft and smooth texture.

Research

Clinical Evidence

Medium confidence
Effective range 5.27–17%
Optimal

N/A

Key findings

  1. 01 A formulation containing 5.27% Stearamide MEA was found to be non-toxic in rats over 13 weeks of daily topical application and did not induce sensitization in clinical studies.
  2. 02 At a 17% concentration, Stearamide MEA was not irritating to the skin, though it caused minimal to moderate irritation to the eyes of rabbits.

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Oil
Optimal pH 9 – 10.5
0 7 14

Stability

Stearamide MEA demonstrates stability under typical temperatures and pressures. Its optimal performance and stability are observed within an alkaline pH range of 9.0 to 10.5 for a 10% aqueous dispersion.

Conflicts

  • Nitrosating systems (due to potential formation of N-nitroso compounds)

Safety

Safety Profile

CIR Status
Safe with restrictions
Max tested
17%
Sensitization risk Low

The CIR Expert Panel deems Stearamide MEA safe for rinse-off products. For leave-on applications, it is safe at concentrations up to 17%, provided that the release of free ethanolamines does not exceed 5%. Formulators must avoid combining this ingredient with nitrosating agents to prevent the formation of N-nitroso compounds.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Valuable

Stearamide MEA is a valuable formulation aid that enhances texture, stability, and conditioning, presenting a low risk of irritation and comedogenicity under its specified concentration and formulation guidelines.

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