

FAQ (Frequently Asked Questions)
1. What is Aluminum Starch Octenylsuccinate and how is it used in cosmetics?
Aluminum Starch Octenylsuccinate** is a modified starch that functions as an absorbent, anti-caking agent, and texture enhancer. It is commonly used in personal care products to improve the feel, reduce greasiness, and control shine in products like powders, creams, lotions, and sunscreens.
2. What is the CAS number and INCI name of Aluminum Starch Octenylsuccinate?
CAS Number: 9087-61-0
INCI Name: Aluminum Starch Octenylsuccinate
3. Is Aluminum Starch Octenylsuccinate safe for skin?
Yes, it is generally regarded as safe and non-irritating when used as directed. It has a long history of safe use in cosmetic and skincare products and is non-comedogenic (won’t clog pores).
4. What are the main benefits of using Aluminum Starch Octenylsuccinate in cosmetics?
Oil absorption to reduce shine
Mattifying effect for a smooth, powdery finish
Improves spreadability and texture of emulsions
Helps reduce greasiness in sunscreens and lotions
Enhances product stability and application feel
5. In what types of personal care products is it typically used?
You’ll commonly find it in:
Face powders and foundations
Sunscreens and sunblock sticks
Mattifying lotions and primers
Creams, body butters, and deodorants
Dry shampoos and hair powders
6. Is Aluminum Starch Octenylsuccinate natural or synthetic?
It is derived from natural starches (such as corn or potato) but is chemically modified with octenylsuccinic anhydride and aluminum salts to enhance its performance.
7. Is Aluminum Starch Octenylsuccinate suitable for sensitive skin or acne-prone users?
Yes. Its lightweight, non-irritating properties and mattifying abilities make it suitable for acne-prone and oily skin, though users with allergies to aluminum should check with a dermatologist.
8. Is it vegan and cruelty-free?
Vegan: Yes, it contains no animal-derived ingredients
Cruelty-Free: It can be sourced from non-animal-tested suppliers (confirm supplier certifications such as PETA or Leaping Bunny)
9. Does Aluminum Starch Octenylsuccinate contain aluminum, and is it safe?
Yes, it contains a small, safe amount of aluminum as part of the compound structure. It is not the same as aluminum salts used in antiperspirants and is considered non-toxic for topical cosmetic use.
10. Is this ingredient compliant with global cosmetic regulations?
Yes, it is permitted for cosmetic use by EU, FDA (USA), Health Canada, and other major regulatory bodies when used within appropriate concentration limits.