
Sorbitan Tristearate
Description
Sorbitan tristearate is a versatile emulsifier and stabilizer commonly used in cosmetic and skincare formulations. This synthetic ingredient is derived from sorbitol and stearic acid, resulting in a waxy solid with excellent emulsifying properties. Its primary function is to create stable water-in-oil emulsions, making it invaluable in products such as creams, lotions, and foundations.
The compound exhibits a low HLB (Hydrophilic-Lipophilic Balance) value, typically around 2.1, which contributes to its effectiveness in creating long-lasting emulsions. Sorbitan tristearate is particularly useful in formulations containing a high percentage of oils or silicones, as it helps prevent separation and maintains product consistency over time.
In addition to its emulsifying capabilities, sorbitan tristearate acts as a thickening agent and can improve the texture and sensory properties of skincare products. It is generally considered safe for use in cosmetics, with minimal risk of skin irritation. The ingredient is often used in concentrations ranging from 0.5% to 5%, depending on the specific formulation requirements.
Sorbitan tristearate's stability across a wide pH range and compatibility with various cosmetic ingredients make it a valuable component in many skincare and makeup products.