Science
Mechanism of Action
This ingredient functions by significantly lowering the surface tension between immiscible substances, such as oil and water, thereby allowing them to combine and form stable emulsions. On the skin, it aids in cleansing by enabling water to effectively mix with and lift away oils and impurities. Additionally, it acts as a solubilizing agent, helping to dissolve other components in cosmetic solvents where they would typically remain insoluble.
Research
Clinical Evidence
High confidenceN/A
Key findings
- 01 Polysorbates, including PEG-20 Sorbitan Cocoate, were determined to be safe for cosmetic use at concentrations up to 25%. Assessments indicated a low potential for human skin irritation, sensitization, or phototoxicity, with findings ranging from nonirritating to mildly irritating in ocular and dermal assays at concentrations from 1% to 100% for the group.
- 02 Formulations containing PEG-20 Sorbitan Beeswax, a chemically related compound, demonstrated minimal irritation and were nonsensitizing at concentrations up to 3%.
Transparency
Dusting Analysis
PEG-20 Sorbitan Cocoate is a functional excipient primarily used for its emulsifying, cleansing, and solubilizing properties, rather than as a direct 'active' ingredient. Its efficacy is integral to the formulation's stability and performance, not a dose-dependent skin benefit that would be subject to dusting concerns.
The Formula
Formulation
Stability
Belonging to the Polysorbate class, PEG-20 Sorbitan Cocoate exhibits robust stability, being relatively unaffected by hard water and electrolytes. This characteristic allows its successful incorporation into a wide pH range, from acidic to basic formulations. Its physical state, like other PEG derivatives, varies with molecular weight; PEGs up to 600 g/mol are typically liquid.
Safety
Safety Profile
The CIR Expert Panel concluded that PEG Sorbitan/Sorbitol Fatty Acid Esters, including PEG-20 Sorbitan Cocoate, are safe for use in cosmetic products at current application levels, with a maximum concentration of 25%. An initial caution regarding use on damaged skin was subsequently removed in a 2010 re-review for PEGs. It is important to note the potential for 1,4-dioxane contamination due to the ethoxylation process, which can be mitigated through stringent purification steps. This ingredient is recognized as safe by the FDA for general or specific limited food uses and, when plant-derived, is permissible in cosmetics under EU Cosmetics Regulation provisions.
Your Skin
Skin Compatibility
Our Assessment
Verdict
PEG-20 Sorbitan Cocoate is a valuable and well-tolerated surfactant, crucial for improving formula stability, enhancing cleansing efficacy, and solubilizing a variety of components across diverse skincare and cosmetic products.
Related
Similar Ingredients
Finding similar ingredients…