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| Catalog Number | CI-SC-0216 |
| Product Name | Polysorbate 40 |
| CAS | 9005-66-7 |
| Synonyms | Tween 40 |
| Description | Acts as non-ionic solubilizer, surfactant, emulsifier, co-solvent and wetting agent. |
| IUPAC Name | 2-[(2R)-2-[(2R,3R,4R)-3,4-Bis(2-hydroxyethoxy)oxolan-2-yl]-2-(2-hydroxyethoxy)ethoxy]ethyl dodecanoate |
| Molecular Weight | 522.7 g/mol |
| Molecular Formula | C26H50O10 |
| Canonical SMILES | CCCCCCCCCCCC(=O)OCCOCC(C1C(C(CO1)OCCO)OCCO)OCCO |
| InChI | InChI=1S/C26H50O10/c1-2-3-4-5-6-7-8-9-10-11-24(30)34-19-18-31-20-22(32-15-12-27)26-25(35-17-14-29)23(21-36-26)33-16-13-28/h22-23,25-29H,2-21H2,1H3/t22-,23-,25-,26-/m1/s1 |
| InChI Key | HMFKFHLTUCJZJO-OQUNMALSSA-N |
| Solubility | Water-soluble |
| Appearance | Yellow viscous liquid to gel |
| Application | Skin care products, cleansing products, hair care products |
| Storage | Store light-protected at a cool and dry place |
| HS Code | 3402319000 |
| INCI | Polysorbate 40 |
| Isomeric SMILES | CCCCCCCCCCCC(=O)OCCOC[C@H]([C@@H]1[C@@H]([C@@H](CO1)OCCO)OCCO)OCCO |
| Topological Polar Surface Area | 133 Ų |
| Uses | Typical use level 1-10%. Add to water phase of formulas. For external use only. |
Polysorbate 40, a polyethoxylated sorbitan ester derived from palmitic acid, is an animal-derivative-free emulsifier renowned for its effectiveness in oil-in-water formulations, with a high HLB value of 15.6. It is especially efficient when used alongside sorbitan monostearate esters. As a versatile nonionic surfactant, Polysorbate 40 is commonly applied in the formulation of creams, gels, and serums, serving multiple functions such as solubilization, dispersion, viscosity modification, and wetting. It demonstrates remarkable compatibility with various emulsifiers, including anionic and cationic types, and performs well across a broad pH range from acidic to alkaline environments. This capability enables Polysorbate 40 to act as a co-emulsifier, enhancing stability and offering diverse texture options in cosmetic products.
What is Polysorbate 40 and what are its main applications in cosmetic products?
Polysorbate 40 is a polyethoxylated sorbitan ester derived from palmitic acid, a natural fatty acid. It is devoid of any animal derivatives, making it suitable for various formulations. Primarily, Polysorbate 40 serves as an effective oil-in-water emulsifier with a high HLB value of 15.6. It is commonly used in combination with sorbitan monostearate esters. Additionally, it functions as a nonionic surfactant utilized in creams, gels, and serums, performing roles such as a solubilizer, dispersant, viscosity modifier, or wetting agent. Its compatibility with a wide range of emulsifiers and pH levels makes it valuable as a co-emulsifier for enhancing emulsion stability and providing diverse consistencies in cosmetic formulations.
How does Polysorbate 40 enhance the stability of cosmetic products?
Polysorbate 40 plays a crucial role in stabilizing cosmetic formulations due to its excellent emulsifying properties. Its high HLB value enables it to effectively bind oil and water phases, creating stable emulsions. When used alongside other emulsifiers, such as sorbitan monostearate esters, its compatibility with various emulsifiers (anionic, cationic, etc.) allows for enhanced emulsion stability and consistency. This ensures that products maintain their texture and effectiveness over time, even across a wide range of pH levels from acidic to alkaline.
Can Polysorbate 40 be used with other types of surfactants?
Yes, Polysorbate 40 is highly versatile and can be used in conjunction with other types of surfactants, including anionic and cationic emulsifiers. Its nonionic nature allows it to blend seamlessly with these different surfactant types, providing formulators with the flexibility to create stable and effective cosmetic products. This compatibility extends to nearly all pH levels, offering formulators a broad spectrum of options when designing products.
Is Polysorbate 40 safe for use in cosmetic applications?
Polysorbate 40 is generally considered safe for use in cosmetic applications. It is a mild yet efficient surfactant and emulsifier. However, as with any cosmetic ingredient, formulators should conduct appropriate safety assessments and comply with relevant regulatory requirements for its use within specific formulations. Testing for potential sensitivities or reactions in end-users can provide additional assurance of the ingredient's safety.
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