Sorbitan trioleate is a nonionic surfactant widely used in oil-in-water (O/W) emulsion systems in the cosmetics and personal care fields. This amber liquid has excellent emulsifying properties and is packaged in 20kg/barrel. It supports large-scale production and customization needs and is an important ingredient for regulating stability in formulas.
General properties
It has an amber liquid appearance, low irritation, and good compatibility with various oils. The recommended addition amount is 1%-5%, which can help maintain the stability of the emulsion in acid, alkali and electrolyte environments, forming a system with a long-lasting, uniform and smooth texture. Before leaving the factory, it must pass the appearance, odor, density, moisture and other indicators, meet the standards of cosmetic-grade raw materials, and provide international quality certification.
From a chemical perspective
In the molecular structure, the sorbitol skeleton connects three oleic acid chains, giving it a strong lipophilicity (low HLB value). When compounded with high HLB emulsifiers such as polysorbate 80, it can form a complementary amphiphilic balance - the lipophilic end anchors the oil phase and cooperates with the hydrophilic end of the high HLB component to build a more stable emulsion film at the oil-water interface to prevent droplet aggregation.
Use in cosmetics
In actual formulas, it is often used with high HLB emulsifiers for products such as creams, lotions, and conditioners: enhance the tolerance of the emulsion to acids, alkalis, and electrolytes, and extend the storage stability period; give the product a smooth skin feel and enhance the use experience; adapt to a variety of emulsion systems such as moisturizers and protective creams, and because of its low irritation, it is suitable for all skin types. The packaging design is clear and safe, and with pre-sales consultation and after-sales support, it is easy to debug the formula and optimize the application.
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