CAS number 38517-23-6
INCI name Sodium Stearoyl Glutamate
Sodium stearoyl glutamate is a mild, amino acid-based emulsifier that facilitates the blending of oil and water in cosmetic formulations. It also conditions both the skin and hair, enhancing their softness and smoothness. In higher concentrations, it functions as a surfactant. As an amino acid salt due to its sodium content, it is gentle and non-irritating. Recognized for its natural origin, it is considered environmentally friendly and a sustainable choice for formulations.
Purpose
Sodium stearoyl glutamate is a gentle cleanser that removes impurities while maintaining moisture. It acts as an emulsifier, ensuring stable formulations, and as a conditioner, improving hair softness and skin hydration. In higher amounts, it functions as a surfactant,also aiding ingredient distribution.
Origin
Sodium stearoyl glutamate is derived from glutamic acid and fatty acids sourced from plants like palm or coconut.
| Feature | Description |
|---|---|
| Name | Sodium stearoyl glutamate |
| Type | Anionic surfactant, emulsifier |
| Source | Derived from glutamic acid and stearic acid |
| Color | White to off-white |
| Physical state | Powder or flakes |
| Odor | Mild or odorless |
| Solubility | Dispersible in water, soluble in oils |
| Concentration | 0.5–5% |
| Boiling point | 600°C |
| PH | 5.0–7.0 |
Mild & Skin-Friendly
Sodium Stearoyl Glutamate is derived from amino acids, particularly glutamic acid, which is naturally found in the skin. It is non-comedogenic and non-irritating, making it an ideal choice for sensitive, acne-prone, or also reactive skin. Unlike harsher surfactants, it does not strip the skin of its natural oils but instead supports the skin barrier. Due to its ultra-mild nature, it is often used in baby care products.
Amino Acid-Based Composition
This ingredient contains a glutamic acid-based hydrophilic portion, which closely mimics the natural structure of skin proteins. The amino acid structure allows it to blend seamlessly with the skin, offering enhanced compatibility and reducing the risk of irritation. It also functions as a skin-conditioning agent, helping to retain moisture and prevent dryness.
Biodegradable & Eco-Friendly
Sodium Stearoyl Glutamate is derived from plant-based raw materials, primarily palm or coconut oil and fermented sugars. It is readily biodegradable, making it an excellent choice for sustainable and also eco-conscious formulations. Due to its natural origin, it is widely used in organic and clean beauty products that prioritize environmentally friendly ingredients. It is also approved by major eco-certifications like ECOCERT and COSMOS.
Dual Functionality: Emulsifier + Skin Conditioner
This ingredient primarily works as an emulsifier, stabilizing formulations by ensuring water and oil phases remain blended. Additionally, it acts as a mild conditioning agent, softening the skin and enhancing moisture retention. Unlike conventional emulsifiers, it contributes to a silky, non-greasy feel in skincare formulations.
Excellent Emulsion Stability
Sodium Stearoyl Glutamate provides long-term stability to both oil-in-water and water-in-oil emulsions. It effectively prevents phase separation, even in extreme temperature fluctuations. This emulsifier is compatible with a wide range of oils and active ingredients, allowing for formulation flexibility. It helps create lightweight yet rich textures that absorb quickly into the skin.
Smooth & Lightweight Texture Enhancement
This ingredient enhances the texture of skincare products by creating elegant, silky, and soft formulations that glide effortlessly on the skin. It improves spreadability and sensory feel, making creams and also lotions more luxurious. Additionally, it reduces greasy and sticky residues, making it ideal for lightweight facial moisturizers, serums, and body lotions.
Non-Irritating & Hypoallergenic
Free from sulfates, parabens, and synthetic harsh surfactants, Sodium Stearoyl Glutamate does not cause skin dryness, tightness, or discomfort. It is suitable for dermatologically tested, hypoallergenic, and fragrance-free formulations, making it an excellent choice for sensitive skin products.
Versatile Solubility & pH Compatibility
This ingredient is easily dispersible in water while also showing compatibility with oils. It functions effectively across a wide pH range of 5.0 to 7.0, making it adaptable for different formulations. It can be used in both emulsions and surfactant-based cleansing products, providing versatility in product development.
Improves Moisture Retention & Skin Barrier Support
Sodium Stearoyl Glutamate helps strengthen the skin barrier by preventing excessive transepidermal water loss. It works synergistically with humectants like glycerin and hyaluronic acid to enhance hydration. By locking in moisture, it keeps the skin plump, soft, and smooth.
Compatible with Natural & Organic Formulations
Due to its natural origin, this ingredient is frequently used in organic, vegan, and clean beauty products. It complies with strict cosmetic regulations regarding safety and sustainability. It is commonly found in natural emulsions, sulfate-free cleansers, and mild hair conditioners, making it a preferred choice in high-performance, skin-friendly formulations.
Applications of Sodium Stearoyl Glutamate
Skincare Product
Sodium Stearoyl Glutamate is widely used in skincare formulations such as creams, lotions, serums, and moisturizers. It helps create smooth and stable emulsions, enhancing the spreadability and absorption of active ingredients. Due to its mild and non-irritating properties, it is commonly found in products for sensitive and dry skin, including soothing and hydrating formulations.
Hair Care Product
This ingredient is used in shampoos, conditioners, and hair masks to improve texture and conditioning effects. It helps maintain a soft, non-greasy feel while enhancing detangling properties. Its mild surfactant properties make it ideal for sulfate-free and gentle hair care formulations.
Baby Care Products
Due to its gentle nature, Sodium Stearoyl Glutamate is often included in baby creams, lotions, and shampoos. It ensures mild cleansing and hydration without causing irritation, making it suitable for delicate and sensitive baby skin.
Sun Care and After-Sun Products
It is commonly used in sunscreens, after-sun lotions, and protective creams to stabilize formulations while providing a smooth and lightweight texture. It also helps in the even distribution of UV filters, ensuring better sun protection.
Makeup and Color Cosmetics
This ingredient is found in foundations, BB creams, primers, and liquid makeup formulations to enhance emulsification and improve texture. It helps create a lightweight, non-greasy finish, making cosmetic products feel more comfortable on the skin.
Cleansing Products and Face Washes
Sodium Stearoyl Glutamate is used in mild facial cleansers, micellar waters, and makeup removers to provide gentle cleansing without stripping the skin of its natural moisture. It is ideal for sulfate-free and pH-balanced cleansing formulations.
Natural and Organic Formulations
Due to its plant-based origin and biodegradability, it is a preferred emulsifier in clean beauty, vegan, and eco-friendly formulations. It is widely used in natural skincare, organic hair care, and sulfate-free cleansers.
