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LAURAMIDE/MYRISTAMIDE DEA.

Optional CAS 97926-10-8 / ANTISTATIC, SURFACTANT - CLEANSING, SURFACTANT - FOAM BOOSTING, VISCOSITY CONTROLLING

Lauramide/Myristamide DEA is a blend of fatty acid diethanolamides, derived from lauric and myristic acids. It serves as a multifunctional cosmetic ingredient, enhancing texture, cleansing efficacy, and stability in various formulations.

Summary

Antistatic Foam Boosting Surfactant Viscosity Controlling

Science

Mechanism of Action

This ingredient functions as a surfactant by reducing the surface tension between oil and water, effectively dissolving dirt and impurities for easy rinsing. It significantly boosts foam production to create a rich lather, acts as a viscosity controlling agent to adjust product thickness, and provides antistatic benefits to skin and hair. Furthermore, it can help temper the effects of more potent surfactants, potentially reducing irritation, and may offer mild moisturizing properties.

Research

Clinical Evidence

Medium confidence
Effective range 5–10%
Optimal

N/A

Key findings

  1. 01 A liquid soap containing 10% Lauramide DEA demonstrated minimal clinical and subjective irritation in a 4-week study involving 114 female participants.
  2. 02 An acne treatment formulated with 5% Lauramide DEA was evaluated as a mild irritant but confirmed safe for commercialization.
  3. 03 Cocamide DEA, a structurally similar fatty acid diethanolamide, was found safe at concentrations of up to 10% in leave-on products and safe for use in rinse-off formulations.

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Oil
Optimal pH N/A
0 7 14

Stability

Lauramide/Myristamide DEA is stable across neutral, moderately alkaline, and moderately acidic pH ranges. However, it is prone to hydrolysis when exposed to high concentrations of mineral acids or strong alkalis. While insoluble in water, it is dispersible and dissolves effectively in organic solvents such as propylene glycol and polyethylene glycol.

Conflicts

  • Nitrosating agents (due to potential formation of carcinogenic nitrosamines)
  • High concentrations of mineral acids or strong alkalis (due to hydrolysis risk)

Safety

Safety Profile

CIR Status
Safe with restrictions
Max tested
10%
Sensitization risk Moderate

The CIR Expert Panel deems Lauramide DEA safe for cosmetic use, provided it is not formulated with nitrosating agents to prevent the creation of potentially carcinogenic nitrosamines. The EU's SCCS supports its safe use under specific conditions, including a maximum secondary amine concentration of 0.5% and the avoidance of nitrosating systems. Although Diethanolamine (DEA), a precursor, is listed under California's Proposition 65 as a carcinogen, the International Agency for Research on Cancer (IARC) does not classify Lauramide DEA itself as carcinogenic. The FDA advises consumers to consult ingredient labels, with MoCRA regulations assigning accountability for product safety to the responsible party.

Your Skin

Skin Compatibility

Yes Normal
Yes Dry
Yes Oily
No Sensitive
Irritancy Medium
Comedogenicity Medium

Our Assessment

Verdict

Optional

Lauramide/Myristamide DEA is a functional ingredient that enhances cleansing and product texture, but its inclusion requires precise formulation to mitigate potential safety risks associated with nitrosamine formation and its DEA component.

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