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HYDROGENATED SOY POLYGLYCERIDES/SOYAMIDE DEA.

Questionable / SKIN CONDITIONING - EMOLLIENT, SURFACTANT - CLEANSING, VISCOSITY CONTROLLING

HYDROGENATED SOY POLYGLYCERIDES/SOYAMIDE DEA is a multifaceted ingredient functioning as a skin conditioning emollient, a surfactant for effective cleansing, and a viscosity-modifying agent. Its components work synergistically to enhance skin texture, stabilize product formulations, and aid in the removal of impurities.

Summary

emulsion stabilising skin conditioning surfactant - cleansing surfactant - emulsifying surfactant - foam boosting viscosity controlling

Science

Mechanism of Action

This ingredient operates through its two distinct components. Soyamide DEA primarily acts as a surfactant and emulsifier, facilitating the breakdown of dirt and oil on skin and hair, while also boosting foam production and controlling product viscosity. Furthermore, it stabilizes emulsions, preventing the separation of oil and water phases. Hydrogenated Soy Polyglycerides contribute predominantly to skin conditioning, visibly improving skin appearance and texture, leaving it feeling notably softer and smoother.

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

For optimal foam stability, particularly with the Soyamide DEA component, an ideal pH of approximately 8.9 has been observed in soap formulations, which typically operate within an 8-11 pH range. Heating factors can induce pH instability.

Conflicts

  • Nitrosating agents (due to potential for carcinogenic nitrosamine formation with DEA compounds)

Safety

Safety Profile

CIR Status
Safe with restrictions
Sensitization risk Moderate

The CIR Expert Panel has deemed diethanolamides safe for use when products are meticulously formulated to be non-irritating and when free diethanolamine levels do not exceed safe thresholds. A critical consideration is the strict avoidance of nitrosating agents in co-formulation, as diethanolamine compounds possess the potential to react and form nitrosamines, which are considered potentially carcinogenic. Soyamide DEA may induce mild to moderate skin irritation, particularly in individuals with sensitive skin, and can act as a skin and eye irritant when in concentrated forms. While adverse reactions to Hydrogenated Soy Polyglycerides are generally uncommon, patch testing is recommended.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Questionable

While offering multiple functional benefits for skin conditioning and product formulation, the critical requirement for precise formulation to prevent the formation of potentially carcinogenic nitrosamines positions this ingredient as questionable for use in precision skincare without extremely rigorous safety protocols.

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