Science
Mechanism of Action
This ingredient functions by enhancing the hydrophobic characteristics of quinoa starch granules through an octenylsuccinylation process. This modification allows the starch particles to effectively adsorb at the oil/water interface, forming a stabilizing barrier that prevents emulsion separation. As a viscosity controlling agent, it adjusts the product's flow properties for optimal spreadability. Upon application, its particulate structure aids in absorbing superficial sebum, resulting in a cleaner, less oily skin feel.
Research
Clinical Evidence
Low confidenceN/A
Transparency
Dusting Analysis
The Formula
Formulation
Stability
An effective emulsion stabilizer, Quinoa Starch Octenylsuccinate prevents the separation of oil and water mixtures. Its octenylsuccinylation increases hydrophobicity, enhancing its ability to stabilize oil-in-water Pickering emulsions. Increasing the degree of substitution further improves its emulsifying capacity. However, it may not be suitable for high-internal-phase emulsions with an oil volume fraction greater than or equal to 74%.
Safety
Safety Profile
Quinoa Starch Octenylsuccinate is generally considered safe for use in cosmetic formulations. While a Cosmetic Ingredient Review (CIR) report mentions this ingredient, the explicit safety conclusion with a maximum concentration (up to 30%) pertains to Aluminum Starch Octenylsuccinate, a related compound. Adverse reactions specific to Quinoa Starch Octenylsuccinate are infrequent; however, as with any cosmetic ingredient, minor skin irritation or allergic responses are potential, albeit uncommon, side effects.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Quinoa Starch Octenylsuccinate is a valuable functional ingredient for formulation integrity and user experience, offering emulsion stability, viscosity control, and a desirable non-greasy skin finish with a low risk of irritation or comedogenicity.
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References
Sources