Non-ionic emulsifier based on sucrose and stearic acid. Stabilizes w/o (water-in-oil) emulsions in sunscreens and creams. Biocompatible, low irritation profile. Common in premium mineral-filter sunscreens.
Topical application
BLimited evidence. One RCT or several controlled studies with limitations.
Functional emulsifier with safety confirmed by CIR. No standalone effects – needed for formula stability.
Sucrose Tetrastearate Triacetate is a non-ionic emulsifier based on sucrose and stearic acid with acetyl groups. Stabilises water-in-oil emulsions in sunscreens and rich creams. Biocompatible, low-irritation profile. Mechanism. Amphiphilic molecule that forms stable liquid-crystalline structures at the phase boundary. In mineral sunscreens it helps evenly disperse zinc oxide and titanium dioxide, reducing the whitish cast. Where applied. Premium mineral-filter sunscreens, rich creams for mature and dry skin. In Spain it features in Avène and Bioderma Photoderm Mineral sunscreens. Safety. CIR confirmed safety at cosmetic concentrations. Non-sensitizing, non-comedogenic. No systemic absorption. Pregnancy and lactation – safe.
Irritation potential
LowAllergen risk
LowPregnancy
SafeSuitable for
The Evigrade extension adds an evidence panel to Wildberries, Goldapple, Letu, iHerb, Sephora and 12 more stores. This ingredient and every other one in the product show evidence-tier, allergen risk and pregnancy/lactation flags at a glance.
Sucrose Tetrastearate Triacetate is considered safe during pregnancy at typical cosmetic concentrations. Systemic absorption through the skin is minimal.
Sucrose Tetrastearate Triacetate suits: normal, dry, combination, sensitive.
Non-ionic emulsifier based on sucrose and stearic acid.
The INCI name is Sucrose Tetrastearate Triacetate. It may also appear as: Sucrose Tetrastearate, Sucrose Stearate, Сукроза тетрастеарат.
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