Aluminum Starch Octenylsuccinate is a modified starch derivative and a functional cosmetic ingredient used primarily as an absorbent, anti-caking agent, viscosity-controlling ingredient and sensory modifier. It is the aluminum salt formed from the reaction of starch with octenylsuccinic anhydride. The ingredient is commonly supplied as a white powder and is used in a variety of cosmetic and personal-care formulations.
In cosmetic formulations, Aluminum Starch Octenylsuccinate is particularly useful for absorbing excess oil and reducing a greasy or tacky feel. It can provide a dry, smooth and velvety skin feel and is therefore valuable in products where a matte or soft finish is desired. Commercial applications include foundations, powders, creams, deodorants, sunscreens, dry shampoos, mascara and other color-cosmetic and personal-care products.
Aluminum Starch Octenylsuccinate combines the functional characteristics of a modified starch with the properties of an aluminum salt. Its performance depends on particle characteristics, processing, concentration and the overall formulation.
Aluminum Starch Octenylsuccinate can absorb excess oil from the skin and formulation. This makes it useful in cosmetic products designed to reduce surface oiliness and provide a drier sensory finish.
The ingredient can help reduce agglomeration in suitable powder formulations. Its anti-caking function is particularly relevant to powder-based cosmetics and other formulations where free-flowing characteristics are required.
Aluminum Starch Octenylsuccinate is used in formulations where reduction of surface greasiness and a matte sensory effect are desired. Commercial cosmetic applications describe benefits including smoothness, softness, reduced greasiness and a velvety skin feel.
It can contribute to viscosity control, particularly in non-aqueous formulation systems. The Korean Cosmetic Association classifies the ingredient for absorbent, anti-caking and non-aqueous viscosity-increasing functions.
The ingredient can be incorporated into foundations, loose and pressed powders, blushes, mascara, concealers, eyeshadow, lipstick and eyeliner. Its oil-absorbing and sensory-modifying characteristics can help improve the feel and finish of color-cosmetic formulations.
Aluminum Starch Octenylsuccinate is used in creams, moisturizers, facial products, masks and other skin-care systems where oil absorption, texture enhancement and a less greasy finish are required. EPA's CompTox database shows its use across numerous personal-care formulation categories.
The ingredient is also used in hair-care products, including dry shampoos and styling products. Its absorbent characteristics can help manage excess oil and contribute to a dry, clean sensory effect.
Aluminum Starch Octenylsuccinate is a powder and should be incorporated according to the processing requirements of the selected commercial grade. Particle size, concentration, dispersion and interactions with other formulation ingredients can influence the final texture and sensory properties.
The ingredient should not be assigned a universal viscosity, moisture, particle-size or heavy-metal specification without reference to the exact commercial grade. These parameters can vary by manufacturer and grade.
For cosmetic safety, the Cosmetic Ingredient Review Expert Panel reviewed Aluminum Starch Octenylsuccinate and in its 2023 assessment confirmed its safety under the reported cosmetic use conditions. The assessment also retained limitations concerning heavy-metal concentrations.
Aluminum Starch Octenylsuccinate can be used in:
Aluminum Starch Octenylsuccinate is an aluminum salt of modified starch produced through reaction of starch with octenylsuccinic anhydride. It is used as an absorbent, anti-caking agent and viscosity-controlling cosmetic ingredient.
The primary CAS number is 9087-61-0. PubChem also records 9005-28-1 as an additional identifier for related records. For product-page publication, 9087-61-0 is the commonly listed CAS for Aluminum Starch Octenylsuccinate.
It is used primarily as an absorbent, anti-caking agent, viscosity-controlling ingredient and texture/sensory modifier in cosmetic and personal-care formulations.
Yes. It is produced by modifying starch with octenylsuccinic anhydride and forming the corresponding aluminum salt.
Yes. Its cosmetic functions include absorption of excess oil and reduction of greasy or tacky sensory characteristics.
Yes. It is used in foundations, powders, blushes, concealers, eyeshadow, mascara and other color-cosmetic formulations.
Yes. It is used in suitable creams, moisturizers, facial products and other skin-care formulations where absorption and sensory modification are required.
It can contribute to a dry, smooth and matte sensory effect by absorbing excess oil and reducing greasiness.
It is generally described as a white powder with no characteristic odor.
The Cosmetic Ingredient Review Expert Panel's 2023 assessment concluded that Aluminum Starch Octenylsuccinate is safe under the cosmetic practices of use and concentrations described in its assessment, with established limitations concerning heavy-metal concentrations.
| Parameter | Specification |
|---|---|
| Appearance | Pale yellow to cream-colored / off-white |