SODIUM STEAROYL GLUTAMATE

SODIUM STEAROYL GLUTAMATE: A Synergy of Gentleness and Efficacy

ASSOUPLIT EMULSIFIES | STABILIZES | SOFTENS

What is Sodium Stearoyl Glutamate ?

Sodium stearoyl glutamate is a naturally derived ingredient mainly used as a gentle emulsifier in cosmetic formulations. It results from the reaction between glutamic acid—an amino acid naturally found in the skin—and stearic acid, a fatty acid derived from plant-based sources such as coconut or palm kernel oil. It is then neutralized with soda (sodium hydroxide) to obtain its sodium form.

Versatile and skin-friendly, sodium stearoyl glutamate helps stabilize emulsions (water/oil blends) while improving product texture in creams, milks, lotions, and more. It provides a silky, lightweight feel without greasiness.

Where does Sodium Stearoyl Glutamate come from ?

Its production relies on renewable resources:

• Glutamic acid is typically obtained through the fermentation of plant sugars.

• Stearic acid is sourced from vegetable oils (such as coconut or palm kernel oil).

• The process is eco-friendly and non-polluting, making it a common ingredient in clean, organic, or natural formulations.

Properties and Active Functions

Sodium stearoyl glutamate serves several valuable roles:

• Mild emulsifier: Stably binds water and oil without irritating the skin.

• Texture enhancer: Gives a velvety, non-sticky finish.

• Skin conditioner: Improves skin suppleness by reinforcing the hydrolipidic film.

• Well-tolerated: Suitable for sensitive skin and baby care products.

What are the benefits of Sodium Stearoyl Glutamate ?

• Creates a light, pleasant texture that absorbs easily.

• Protects and respects the skin barrier.

• Contributes to the stability of skincare products (prevents phase separation).

• Enables gentle formulations without irritation or greasy feel.

• Provides a “second skin” effect, ideal for daily skincare.

Key Benefits

• Naturally emulsifies

• Enhances sensory experience

• Respects skin balance

How is it used in cosmetics ?

Sodium stearoyl glutamate is found in:

• Moisturizing creams and lotions: Improves texture and stability.

• Organic or clean facial care products: A gentle alternative to harsh synthetic emulsifiers.

• Baby products or sensitive skin formulas: Excellent tolerance profile.

• Mild cleansers: Used as a co-surfactant to soften formulas.

Any side effects ?

Sodium stearoyl glutamate is very well tolerated. It is non-comedogenic, non-irritating, and has no known allergenic potential. It is also biodegradable and environmentally friendly.

Sources

• SpecialChem – “Sodium Stearoyl Glutamate”: describes its roles as a mild emulsifier, texture enhancer, and skin conditioner, well tolerated and suitable for sensitive skin.

• Paula’s Choice – ingredient profile: notes it is derived from glutamic acid, emulsifies and softens the skin, used at 0.03–2% with an excellent safety profile.