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SODIUM DIMETHICONE PEG-7 ACETYL METHYLTAURATE.

Valuable CAS - / HAIR CONDITIONING, SKIN CONDITIONING

SODIUM DIMETHICONE PEG-7 ACETYL METHYLTAURATE is an amphiphilic silicone polymer, derived from Dimethicone and PEG, designed to provide comprehensive skin conditioning. It forms a hydrophobic yet breathable film on the skin, enhancing moisture retention, offering environmental protection, and improving product aesthetics through superior slip and feel.

Summary

Skin Conditioning Hair Conditioning Emulsifying Surfactant Occlusive Barrier Formation Sensory Enhancer Skin Protectant

Science

Mechanism of Action

This amphiphilic silicone polymer, a derivative of Dimethicone and PEG, exhibits dual solubility characteristics, allowing it to integrate seamlessly into various formulations. Upon application, it is engineered to create a hydrophobic film on the skin's surface, functioning as an occlusive barrier. This barrier effectively seals in moisture, minimizes transepidermal water loss (TEWL), and provides a protective shield against external aggressors, thereby supporting skin barrier integrity. Beyond its protective roles, it acts as a conditioning agent for both skin and hair, an emulsifier, and a surfactant. Its presence also contributes to an enhanced skin feel, improved product spreadability, a subtle light-reflecting quality, and optimized skin adhesion for a refined finish.

Research

Clinical Evidence

Low confidence
Effective range N/A
Optimal

N/A

Transparency

Dusting Analysis

Not commonly dusted

Information regarding dusting behavior for this ingredient is not available in the provided research data.

The Formula

Formulation

Solubility
Both
Optimal pH 5.5 – 8.5
0 7 14

Stability

Based on studies for related PEG-Dimethicone compounds, stable formulations are typically achieved within a pH range of 5.5 to 8.5. This PEG-modified silicone demonstrates water-soluble or water-dispersible properties due to its polyethylene glycol chains, while retaining the oil-compatible attributes of dimethicone.

Safety

Safety Profile

CIR Status
Safe with restrictions
Max tested
85%
Sensitization risk Moderate

The Cosmetic Ingredient Review (CIR) Expert Panel assessed Dimethicone and its related polymers, concluding safety in cosmetics at current use concentrations, provided formulations are non-irritating to skin and eyes. A maximum concentration of 85% has been reported in products for dermal contact. However, data are insufficient to determine safety for incidental inhalation, particularly when applied via airbrush devices. While generally considered non-irritating, there is a noted potential for irritation, particularly when combined with other problematic ingredients.

Your Skin

Skin Compatibility

Yes Normal
Yes Dry
Yes Oily
Yes Sensitive
Irritancy Moderate
Comedogenicity Unknown

Our Assessment

Verdict

Valuable

SODIUM DIMETHICONE PEG-7 ACETYL METHYLTAURATE is a valuable amphiphilic silicone that significantly enhances skin barrier function, moisture retention, and product feel, while being generally well-tolerated across skin types when formulated appropriately.

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