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DEA-MYRISTATE.

Avoid CAS 53404-39-0 / SURFACTANT - CLEANSING, SURFACTANT - EMULSIFYING

DEA-Myristate, also known as Myristamide DEA, is a fatty acid amide used in cosmetic formulations primarily for its surfactant and antistatic properties. It enhances foam quality and texture in cleansing products, while also serving as a viscosity modifier.

Antistatic Surfactant / Cleansing Foam Booster Viscosity Controller

Science

This ingredient functions by reducing electrostatic charges on hair and skin, acting as an antistatic agent. As a surfactant, it facilitates the removal of impurities like dirt and oil, simultaneously improving foam volume, structure, and durability. Additionally, DEA-Myristate can modify product thickness, acting as a viscosity controlling agent to either increase or decrease the consistency of a formulation.


Research

Low confidence
Effective range N/A
Optimal

N/A


Transparency

Not commonly dusted

The Formula

Solubility
Oil
Optimal pH 9.5 – 10.5
0 7 14

Stability

DEA-Myristate is a white to off-white waxy solid with a melting range between 40°C and 54°C. Optimal stability for a 1% aqueous dispersion is observed within a pH range of 9.5 to 10.5.

Conflicts

  • Ingredients that can lead to the formation of N-nitroso compounds

Safety

CIR Status
Safe with restrictions
Max tested
40%
Sensitization risk Unknown

The CIR Expert Panel deems Myristamide DEA safe for rinse-off products. In leave-on applications, its use is restricted to concentrations that limit the release of free ethanolamines to a maximum of 5%, with a general maximum use concentration of 40% for related amides. A primary safety concern is the potential for diethanolamine (DEA) to form carcinogenic nitrosamine compounds, leading to a caution against its use in formulations susceptible to such reactions. California's Proposition 65 has listed DEA as a cancer-causing agent since 2012, and the US EPA classifies DEA as a hazardous air pollutant. The SCCS also approves its use under specific restrictions, which may include purity and concentration criteria.


Your Skin

No Normal
No Dry
No Oily
No Sensitive
Irritancy Unknown
Comedogenicity Unknown

Our Assessment

Avoid

Despite its functional benefits in formulations, the significant safety concerns regarding potential nitrosamine formation, California's Proposition 65 listing, and EPA hazardous air pollutant classification preclude its use in precision skincare.


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