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Moumoujus

PEG-8 HYDROGENATED TALLOW AMINE.

Questionable CAS 61791-26-2 / SURFACTANT - EMULSIFYING

PEG-8 Hydrogenated Tallow Amine is a synthetic surfactant and emulsifier derived from tallow, essential for achieving stable, finely dispersed mixtures of oil and water in cosmetic and personal care formulations. It also contributes conditioning and emollient benefits to products.

Summary

Surfactant Emulsifier Conditioner Emollient Thickener Antistatic Agent

Science

Mechanism of Action

This ingredient operates by reducing the interfacial tension between immiscible phases like oil and water. Its molecular structure features both lipophilic (oil-attracting) and hydrophilic (water-attracting) segments. The PEG-8 ethoxylation enhances its water compatibility, facilitating the formation of uniform emulsions. Beyond its primary role in emulsion stability, it can function as a skin conditioner, an emollient to soften and smooth, and a rheology modifier for thickening formulations.

Research

Clinical Evidence

Low confidence
Effective range 1–10%
Optimal

N/A

Transparency

Dusting Analysis

Not commonly dusted

Specific data on dusting characteristics for PEG-8 Hydrogenated Tallow Amine were not identified in the research.

The Formula

Formulation

Solubility
Both
Optimal pH N/A
0 7 14

Stability

The compound demonstrates chemical stability under standard ambient conditions, allowing its incorporation into a variety of formulations. It exhibits utility in acidic cleaning products and can effectively thicken acidic solutions. Typical usage concentrations range from 1% to 10% of the total formula, and it should be introduced into the oil phase during product development.

Safety

Safety Profile

CIR Status
Safe with restrictions
Sensitization risk Moderate

The Cosmetic Ingredient Review (CIR) Expert Panel concluded that PEG Hydrogenated Tallow Amines are safe for use in cosmetics when formulated to be non-irritating. However, the ethoxylation process carries contamination concerns regarding residual ethylene oxide and 1,4-dioxane. While INCIDecoder indicates low irritancy, PEG-8 has been noted as a mild sensitizer and irritant in some studies, particularly on damaged or compromised skin, leading to contact dermatitis. The unethoxylated base, Hydrogenated Tallow Amine, is also identified as a skin irritant.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Questionable

Despite its functional benefits as an emulsifier and conditioner in formulations, the noted potential for irritation on sensitive or damaged skin, coupled with concerns regarding processing contaminants, makes this ingredient questionable for precision skincare.

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