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Researched by Helena DeMaria-Williams

Formula IngredientEmulsifier

Sodium Stearoyl Glutamate

INCI: Sodium Stearoyl Glutamate

Sodium stearoyl glutamate (SSG) is an anionic, amino acid-based emulsifier derived from coupling L-glutamic acid (sourced from sugar beets or corn) with stearic acid (from vegetable oils such as coconut or palm), then neutralised to sodium salt form. It appears as a free-flowing white powder and functions as a potent oil-in-water emulsifier at very low concentrations, stabilising emulsions and creating fine droplet sizes with an elegant, low-tack skin feel. Its pH closely matches that of human skin, and it carries certifications from COSMOS, NATRUE, and ECOCERT, reflecting its high biodegradability and ecological safety.

Category

Emulsifier

Irritation Risk

Low

Skin Types

all skin types, dry, normal, combination, oily, sensitive, acne-prone

What does this do in a formula?

emulsification, skin conditioning, gentle cleansing, improved texture, silky sensorial feel, formulation stability

Is Sodium Stearoyl Glutamate safe? Key considerations

Can Sodium Stearoyl Glutamate cause irritation?

Low Risk

Sodium stearoyl glutamate is widely characterised as mild and hypoallergenic. No EU CosIng Annex II or III restrictions apply. Potential side effects are uncommon and may include mild stinging or rare contact allergy in highly sensitive individuals. It is generally well-tolerated across all skin types including sensitive skin.

Does Sodium Stearoyl Glutamate increase sun sensitivity?

No Risk

Sodium stearoyl glutamate does not increase photosensitivity. No special sun protection precautions are required based on its presence in a formulation.

Is Sodium Stearoyl Glutamate safe during pregnancy?

Safe

No studies have raised concerns for topical use during pregnancy or breastfeeding. The California Proposition 65 compliance statement for the BASF Eumulgin SG grade notes it is not known to cause cancer, birth defects, or other reproductive harm. Available data indicates no identified safety concerns, though individuals should consult a healthcare provider with specific questions.

How does Sodium Stearoyl Glutamate work?

Sodium stearoyl glutamate (SSG) is an anionic, amino acid-based emulsifier derived from coupling L-glutamic acid (sourced from sugar beets or corn) with stearic acid (from vegetable oils such as coconut or palm), then neutralised to sodium salt form. It appears as a free-flowing white powder and functions as a potent oil-in-water emulsifier at very low concentrations, stabilising emulsions and creating fine droplet sizes with an elegant, low-tack skin feel. Its pH closely matches that of human skin, and it carries certifications from COSMOS, NATRUE, and ECOCERT, reflecting its high biodegradability and ecological safety.