Sorbitan Sesquioleate

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[ CAS No. ] 8007-43-0
[ Molecular Formula ] C66H126O16
[ Molecular Weight ] 1175.7
[ Appearance ] Yellow viscous liquid

[ Function ]
1. Solubilizer
The ester bonds present in its molecular structure enable the formation of hydrogen bonds, thereby helping to enhance the solubility of sparingly soluble solids or liquids in water.
2. Emulsifier
Leveraging its lipophilic and hydrophilic properties, it forms a stable film at the oil-water interface, effectively preventing oil droplets from coalescing.
3. Barrier Repair
Helps reinforce the skin barrier and minimize external irritation, making it suitable for use on sensitive and dry skin types.
4. Synergistic Enhancement
Promotes the penetration of active ingredients—such as Vitamin E and ceramides—thereby boosting their antioxidant and moisturizing efficacy.
5. Long-lasting Moisture Retention
Forms a lightweight protective film that minimizes moisture loss, making it an ideal ingredient for hand cream and body lotion formulations.
6. Refreshing Hydration
Effectively emulsifies high-oil-content formulations while preventing a sticky residue, ensuring rapid absorption and enhanced skin hydration levels.

About Sorbitan Sesquioleate
Sorbitan Sesquioleate is a non-ionic surfactant frequently utilized in cosmetics and personal care products as an emulsifier and solubilizer. It promotes the formation of the skin's stratum corneum, thereby enhancing the skin barrier function and providing moisturizing benefits. By reducing surface tension, Sorbitan Sesquioleate increases the skin's capacity to absorb moisture, thereby exerting a hydrating effect. Furthermore, due to its lubricating properties, it can be used to alleviate symptoms such as itching associated with dry skin. Additionally, it possesses mild antioxidant activity, helping to protect the skin from free radical damage.
Sorbitan Sesquioleate is incorporated into a wide range of cosmetic formulations—including skincare products, cleansing agents, moisturizers, eye makeup, and various other cosmetics—where it primarily serves as an emollient.