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Moumoujus

SOYAMIDE DEA.

Valuable CAS 68425-47-8 / EMULSION STABILISING, SURFACTANT - CLEANSING, SURFACTANT - EMULSIFYING, SURFACTANT - FOAM BOOSTING, VISCOSITY CONTROLLING

Soyamide DEA, derived from soybean oil, is a versatile cosmetic ingredient primarily valued for its surfactant properties. It expertly stabilizes emulsions, enhances cleansing and foaming capabilities, and functions as a viscosity controller, while also offering conditioning benefits.

Summary

Emulsion Stabilising Surfactant - Cleansing Surfactant - Emulsifying Surfactant - Foam Boosting Viscosity Controlling Conditioning Humectant

Science

Mechanism of Action

As an amphiphilic molecule, Soyamide DEA possesses both water-attracting (hydrophilic) and oil-attracting (lipophilic) segments. This dual nature allows it to significantly reduce surface tension at the oil-water interface, effectively emulsifying immiscible phases and stabilizing product formulations. It functions as a cleansing agent by encapsulating and breaking down oils and dirt, enabling their efficient removal. Concurrently, it boosts foam quality by enhancing lather volume, structure, and stability, and provides a smooth, moisturizing effect on skin and hair, acting as a mild humectant.

Research

Clinical Evidence

Low confidence
Effective range N/A
Optimal

N/A

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Water
Optimal pH N/A
0 7 14

Stability

Optimal pH range for stability is not specified, but careful formulation is required to avoid incompatibilities.

Conflicts

  • Nitrosating agents or certain preservatives, due to the potential formation of carcinogenic N-nitroso compounds.

Safety

Safety Profile

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

The Cosmetic Ingredient Review (CIR) Expert Panel deems diethanolamides, including those similar to Soyamide DEA, safe for use when formulated to be nonirritating and when free DEA levels remain within safe limits. It is crucial to avoid its use in products where N-nitroso compounds could form, as nitrosamines are considered potentially carcinogenic. While generally safe in properly formulated products up to 10% (especially for leave-on applications, based on related Cocamide DEA data), exposure to high concentrations or improper conditions may induce skin and eye irritation. European Union regulations (SCCS Annex III) also impose specific restrictions on its use.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Valuable

A versatile, soybean-derived surfactant offering emulsion stabilization, cleansing, foaming, and conditioning properties, suitable for various skin types when formulated within established safety parameters to mitigate nitrosamine formation.

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