




FAQ (Frequently Asked Questions)
1. What is NanoGreen ASOS?
NanoGreen ASOS is a nano-engineered form of Aluminum Starch Octenylsuccinate (also known as ASOS). This advanced version features finely milled nanoparticle carriers designed to deliver superior texture enhancement, absorbency, and dispersion in modern personal care and cosmetic products.
2. What is Aluminum Starch Octenylsuccinate, and how is it used in cosmetics?
Aluminum Starch Octenylsuccinate is a modified plant-based starch, treated with octenyl succinic anhydride and stabilized with aluminum salt. It’s used as an absorbent, anti-caking agent, and viscosity modulator in formulations like powders, foundations, lotions, and sunscreens.
3. How does NanoGreen ASOS differ from conventional Aluminum Starch Octenylsuccinate?
NanoGreen ASOS delivers all the established benefits—oil absorption, matte finish, anti-caking, and viscosity control—but at the nano-scale, offering:
- Even finer dispersion
- Enhanced control over shine and texture
- Improved performance in ultra-light or transparent formulations
- Greater compatibility in high-performance and next-gen emulsion systems
4. Why use NanoGreen ASOS instead of standard ASOS?
NanoGreen ASOS meets growing demands for high-performance, clean-label ingredients in personal care. By leveraging nano-formulation, it provides smoother application, better transparency, and superior blending in both near-invisible and tinted products.
5. What are the key benefits of NanoGreen ASOS in formulations?
Exceptional mattifying and oil-control properties
Finer, velvety texture without white residue
Enhanced stability and flow in powder systems
Modern aesthetic suitable for primers, sunscreens, and tinted products
6. In which types of personal care products is NanoGreen ASOS most effective?
Ideal for:
- Loose and pressed face powders, setting powders
- Primers and mattifying foundations
- Lightweight lotions, creams, and sunscreens
- Dry shampoos, deodorant sticks, and mattifying skincare
7. What is the CAS number and INCI name of Aluminum Starch Octenylsuccinate?
CAS Number: 9087-61-0
INCI Name: Aluminum Starch Octenylsuccinate
Note: NanoGreen ASOS remains registered under the same INCI name. However, disclosures in safety reports or technical documentation may specify it as "nano" or "nano-formulated Aluminum Starch Octenylsuccinate" for transparency.
8. Is NanoGreen ASOS safe for personal care applications?
Yes. Cosmetic safety reviews, including the Cosmetic Ingredient Review (CIR), have concluded that Aluminum Starch Octenylsuccinate is safe when used within standard concentration limits (up to ~30% in leave-on formulas).Environmental groups have also rated it low hazard when formulations meet contamination and inhalation safety criteria. NanoGreen ASOS maintains the same safety profile and should be handled with appropriate inhalation precautions during manufacturing.
9. How do I incorporate NanoGreen ASOS into formulations?
Use in the powder phase for dry products or during emulsification/mixing for lotions and creams.
NanoGreen ASOS disperses smoothly—high-shear mixing is recommended for uniformity.
Typical usage ranges:
1–10% in emulsions and lotions
Up to 30% in compact powders or dry formulas
10. What skin types benefit most from NanoGreen ASOS?
NanoGreen ASOS is especially suited for oily and combination skin due to its oil-absorbing and matte-enhancing properties. However, its lightweight nature makes it broadly compatible—even dry or sensitive skin types may find it beneficial when used at low levels